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US3867600A - Hand-held control means - Google Patents

Hand-held control means Download PDF

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Publication number
US3867600A
US3867600A US361391A US36139173A US3867600A US 3867600 A US3867600 A US 3867600A US 361391 A US361391 A US 361391A US 36139173 A US36139173 A US 36139173A US 3867600 A US3867600 A US 3867600A
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control
thumb
operator
hand
launcher
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US361391A
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Carroll D Phillips
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US Department of Navy
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US Department of Navy
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/02—Bases, casings, or covers
    • H01H9/0214—Hand-held casings

Definitions

  • PATENTEU FEB! 8 I975 SHEET 2 OF 2 HAND-HELD CONTROL MEANS This invention relates in general to missile control means and, more particularly, to a portable control means which permits remote control of the missile loading and maintenance operations.
  • Portable launch control means are essential on missile ships or at land launching installations where it is desired to provide a short range self-defense capability against aircraft and air-to-surface and surface-tosurface missiles. Such defenses to be adequate should have control means that are capable of on-mount stowage to provide for fast reaction setting and launching of from a few to several missiles.
  • the present invention permits remote control to be maintained on the deck of a ship or at a shore activity of a missile launcher during its loading and maintenance operations.
  • a unique form of pistol group control is provided which is portable so that the operator is free to move about the deck or station during operation of the launcher.
  • the pistol or deck control unit preferably is molded of pliable plastic material and all controls are recessed to avoid damage in the event the unit is dropped.
  • a further object of the invention is to provide for a deck control of missile launchers which allows control personnel to position the launcher in azimuth and elevation during loading or unloading procedures from the immediate vicinity of the launcher.
  • FIG. 1 is a front elevation of the hand control unit and its storage container
  • FIG. 2 is a side elevation, partly in section, of the hand control of FIG. 1;
  • FIG. 3 is a rear elevation, partly in section, of the hand control of FIG. I;
  • FIG. 4 is a perspective view of the hand control unit and system ready for use.
  • a hand control unit 11 is shown connected to a cable assembly 12 which when not in use is stored in a container 13.
  • Controller 11 has a handle portion 14 of selected contour to be gripped comfortably by the fingers of the right hand of the user and a plurality of recessed controls which include a brake control knob 15 which is disposed opposite the users thumb for operation thereby, a power ON indicator light 16, and ON-OFF pushbutton switch 17, an emergency OFF pushbutton switch 18 and an elevation-train selector switch 19.
  • a cable 21 having a plug 22 for connection to hand unit 11 and of selected length is stored in container 13.
  • Plug 22 preferably is secured to handle portion 14 by suitable adhesive.
  • a control unit stowed switch 24 and a grounding strap 25 complete the components that are stored in container l3.
  • FIGS. 2 and 3 are side and rear views of the hand control unit of FIG. 1 and illustrate the contour of the device as well as the manner in which the various controls are recessed from the front surface of the device, indicated at 27, to prevent damage or accidental turning of the brake control handle.
  • the lens of indicator light 16 is flush with surface 27.
  • the components of the assembly may be serviced by removing handle sections 29 and 30, which preferably are made of conventional pliable plastic material, and from the rear by removing a panel 31.
  • FIG. 4 illustrates the hand controller unit removed from its container and ready for use in operating a mis sile launcher or other equipment.
  • Container 13 is made of a sufficient size to receive whatever length of cable 21 is desired.
  • Handle 14 is shown contoured to accommodate the fingers only of the user in such a way that a firm grip may be maintained while leaving the thumb of the user free to manipulate the various recessed controls in the hand unit.
  • Slew control 15 is movable either clockwise or counter-clockwise about a neutral position. Motion in either direction about the neutral position releases the brakes of the launcher and provides an error signal to the launcher servo which results in motion about the axis selected by switch 19.
  • a servo control system provides power for the launcher drives.
  • the system consists of a servo electronics package, a silicone control rectifier (SCR), a deck (or hand) control unit (DCU) rate controller, and an interconnection and switchgear cabinet.
  • Launcher elevation and train command signals are initiated with slew control knob 15 when the system is in the DCU mode.
  • Knob l5 drives a potentiometer which sends a voltage to a dc motor in the DCU rate control ler.
  • the motor speed is proportional to displacement of control knob 15.
  • the motor drives a synchro control transmitter which sends a position signal to the servo electronics which in turn sends control signalsto the primary SCR power controller and launcher drive motors.
  • a missile launcher may be operated in either one of three control modes; namely,
  • the deck station launcher control contains control knob 15 to release the drive brakes and to supply rate commands for either train or elevation to the servo controller. These rate commands are attenuated in respect to normal rate commands, holding the launcher slew rate to a slower and safer limit.
  • operation of the launcher is accomplished by first removing the deck station launcher control from its storage container.
  • the mode selection rotary switch not shown, is then locked into the hand controlled mode position and elevation-train mode toggle switch 19 is switched to elevation (EL).
  • Slew DOWN-UP brake control is then rotated to UP to cause the launcher to move up or elevate.
  • Rotating the knob to its center position causes the launcher to cease elevating and to remain fixed.
  • the upper limit of elevation is reached by leaving the knob in the UP position until further elevation ceases.
  • Rotating control knob 15 down (DN) causes the launcher to depress giving lower elevation. reaching the lower elevation buffer stop if held in the DOWN position.
  • the launcher is returned to its center position by rotating thumb knob 15 to the UP position and holding until the launcher elevation indicator indicates 0.
  • Operation of the device in train is similar to that in elevation except that rotating the thumb knob to the UP position, i.e., clockwise, causes the launcher to train clockwise through 360.
  • Turning the knob to the DOWN position in train causes the launcher to train counter-clockwise through 360.
  • the launcher may be stopped immediately by either depressing the EMERG- OFF push-button switch or releasing control knob 15.
  • the deck station launcher control is stored at the site of the launcher in container 13.
  • a hand-held control unit for at least bi-directionally controlling the movement of a missile or other launch device or equipment.
  • This unit is located at the site of the equipment to be controlled and permits a single person to cause the equipment to assume desired positions within his purview and have one free hand for other duties or for his own safety.
  • the hand control unit is portable to the full extent of the length of its cord so that the person operating the unit may move about the vicinity of the equipment without a significant impediment to his flexibility of movement.
  • the controls on the hand unit are all operated by the thumb of the user leaving his fingers free to maintain a secure grip on the unit.
  • the Controls are all recessed within the periphery of the configuration of the hand controlled unit so that they cannot be accidently actuated by dropping or by being accidently struck during movements of the operator.
  • the hand controlled unit preferably is molded of a pliable plastic so that not only are the controls not ac tuable upon dropping but the unit itself may be dropped without causing physical damage to it.
  • hand control unit is primarily used to control a surfaceto-air missile launcher during both loading and maintenance operations, but it will be appreciated that many modifications, variations and uses of the unit are possible in the light of the above teachings.
  • a hand-held device for controlling the operation of powered equipment by the natural movements of an operator's thumb comprising:
  • a handle grip member having a lower portion contoured to be comfortably gripped by the fingers of the right hand of the operator and an angular control portion extending from the handle grip lower portion and having specific control components deployed within ready reach of the thumb of said right hand;
  • said lower portion tapering from a wider base area remote from said control portion to a narrower area adjacent said control portion for more securely accomodating the operators right index finger;
  • control components including a rotatable control knob in the lower left quadrant of said angular control portion immediately above the operators right thumb for permitting variable control of equipment connected thereto;
  • a toggle switch disposed immediately above said rotatable control knob for selecting the circuits to be thumb-controlled thereby;
  • ON-OFF recessed pushbutton controls opposite said toggle switch for starting and stopping by thumb action the operation of the equipment to which said device is connected
  • control components being recessed within the outer configuration of the control portion so that accidental actuation of the control member either by the operators thumb or by other means is avoided;
  • control cable having a plurality of connectors therein removable received axially in said lower portion at the ends thereof remote from said control portion.
  • control portion is asymmetrical with respect to said lower portion and is offset toward the thumb of an operators right hand so as to position said control knob substantially in alignment with the operators right thumb and opposite the terminal phalanx thereof.
  • control knob has an initial, neutral, central position and is rotatable clockwise or counterclockwise to control opposite directions of movement in the equipment con-

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  • Mechanical Control Devices (AREA)

Abstract

A hand-held device for controlling the operation of powered equipment by the natural movements of an operator''s thumb is provided. The device has a lower portion which is gripped by the fingers of one hand and an upper, control portion having selected control members which are within ready reach of the thumb of the hand holding the device.

Description

United States Patent 1 91 [111 3,867,600
Phillips Feb. 18, 1975 [54] HAND-HELD CONTROL MEANS 3,052,785 9/1962 Herrmiann et a1 200/157 3,086,090 4 1963 C 1 200 159 RX [75] Inventor Cam) Wesmm Mass- 3,198,922 slwes R211? 200/157 [73] Assignee: United States of America as represented by the Secretary of the Primary ExaminerRobert K. Schaefer Na y, Washington, I Assistant ExaminerWilliam J. Smith [22] Filed, May 17 1973 Attorney, Agent, or FirmR. S. Sciascia; C. E.
' Vautrain, Jr.
[21] Appl. No.: 361,391
52 U S C1 200 157 [57] ABSTRACT E j i 4 A hand-held device ,for controlling the operation of [58] Field 300/157 R DIG 2 powered equipment by the natural movements of an 200/60 operators thumb is provided. The device has a lower portion which is gripped by the fingers of one hand [56] References Cited and an upper control portion having selected control members which are within ready reach of the thumb UNITED STATES PATENTS of the hand holding the device. 2,558,109 6/1951 Stanzel .1 200/157 2,812,405 11/1957 Wolkav 3 Claims, 4 Drawing Figures PATENTED FEB I 8 I915 SHEET 1 [IF 2 Fig.l
PATENTEU FEB! 8 I975 SHEET 2 OF 2 HAND-HELD CONTROL MEANS This invention relates in general to missile control means and, more particularly, to a portable control means which permits remote control of the missile loading and maintenance operations.
Portable launch control means are essential on missile ships or at land launching installations where it is desired to provide a short range self-defense capability against aircraft and air-to-surface and surface-tosurface missiles. Such defenses to be adequate should have control means that are capable of on-mount stowage to provide for fast reaction setting and launching of from a few to several missiles.
The present invention permits remote control to be maintained on the deck of a ship or at a shore activity of a missile launcher during its loading and maintenance operations. A unique form of pistol group control is provided which is portable so that the operator is free to move about the deck or station during operation of the launcher. The pistol or deck control unit preferably is molded of pliable plastic material and all controls are recessed to avoid damage in the event the unit is dropped.
Accordingly, it is an object of the present invention to provide for site control of missile launcher operations in a system also having remote and local control thereof.
It is another object of the invention to provide for site control of missile launcher operations in a hand-held unit which is not susceptible to damage on being dropped.
A further object of the invention is to provide for a deck control of missile launchers which allows control personnel to position the launcher in azimuth and elevation during loading or unloading procedures from the immediate vicinity of the launcher.
Other objects, advantages and novel features of the invention become apparent from the following detailed description thereof when considered in conjunction with the accompanying drawings in which like numerals represent like parts throughout and wherein:
FIG. 1 is a front elevation of the hand control unit and its storage container;
FIG. 2 is a side elevation, partly in section, of the hand control of FIG. 1;
FIG. 3 is a rear elevation, partly in section, of the hand control of FIG. I; and
FIG. 4 is a perspective view of the hand control unit and system ready for use.
Referring to FIG. 1, a hand control unit 11 is shown connected to a cable assembly 12 which when not in use is stored in a container 13. Controller 11 has a handle portion 14 of selected contour to be gripped comfortably by the fingers of the right hand of the user and a plurality of recessed controls which include a brake control knob 15 which is disposed opposite the users thumb for operation thereby, a power ON indicator light 16, and ON-OFF pushbutton switch 17, an emergency OFF pushbutton switch 18 and an elevation-train selector switch 19. A cable 21 having a plug 22 for connection to hand unit 11 and of selected length is stored in container 13. Plug 22 preferably is secured to handle portion 14 by suitable adhesive. A control unit stowed switch 24 and a grounding strap 25 complete the components that are stored in container l3.
FIGS. 2 and 3 are side and rear views of the hand control unit of FIG. 1 and illustrate the contour of the device as well as the manner in which the various controls are recessed from the front surface of the device, indicated at 27, to prevent damage or accidental turning of the brake control handle. The lens of indicator light 16 is flush with surface 27. The components of the assembly may be serviced by removing handle sections 29 and 30, which preferably are made of conventional pliable plastic material, and from the rear by removing a panel 31.
FIG. 4 illustrates the hand controller unit removed from its container and ready for use in operating a mis sile launcher or other equipment. Container 13 is made of a sufficient size to receive whatever length of cable 21 is desired. Handle 14 is shown contoured to accommodate the fingers only of the user in such a way that a firm grip may be maintained while leaving the thumb of the user free to manipulate the various recessed controls in the hand unit. Slew control 15 is movable either clockwise or counter-clockwise about a neutral position. Motion in either direction about the neutral position releases the brakes of the launcher and provides an error signal to the launcher servo which results in motion about the axis selected by switch 19.
A servo control system, not shown, provides power for the launcher drives. The system consists of a servo electronics package, a silicone control rectifier (SCR), a deck (or hand) control unit (DCU) rate controller, and an interconnection and switchgear cabinet. Launcher elevation and train command signals, are initiated with slew control knob 15 when the system is in the DCU mode. Knob l5 drives a potentiometer which sends a voltage to a dc motor in the DCU rate control ler. The motor speed is proportional to displacement of control knob 15. The motor drives a synchro control transmitter which sends a position signal to the servo electronics which in turn sends control signalsto the primary SCR power controller and launcher drive motors.
In one system which incorporates the hand control unit of the present invention, a missile launcher may be operated in either one of three control modes; namely,
dures requiring launcher movements. The deck station launcher control contains control knob 15 to release the drive brakes and to supply rate commands for either train or elevation to the servo controller. These rate commands are attenuated in respect to normal rate commands, holding the launcher slew rate to a slower and safer limit. Once the hand control mode has been entered, only a positive action by personnel at both deck station launcher control and the Local Maintenance Panel will cause the launcher to enter into another mode. As a safety feature, the DCU controller, not shown, incorporates follow-up synchros which assure present launcher position regardless of the control mode, i.e., local, remote or DCU. This approach prevents switch-over command errors and sudden launcher slewing with its implied safety hazards.
in one embodiment of a shipboard guided missile launcher system, operation of the launcher is accomplished by first removing the deck station launcher control from its storage container. The mode selection rotary switch, not shown, is then locked into the hand controlled mode position and elevation-train mode toggle switch 19 is switched to elevation (EL). Slew DOWN-UP brake control is then rotated to UP to cause the launcher to move up or elevate. Rotating the knob to its center position causes the launcher to cease elevating and to remain fixed. The upper limit of elevation is reached by leaving the knob in the UP position until further elevation ceases. Rotating control knob 15 down (DN) causes the launcher to depress giving lower elevation. reaching the lower elevation buffer stop if held in the DOWN position. The launcher is returned to its center position by rotating thumb knob 15 to the UP position and holding until the launcher elevation indicator indicates 0.
Operation of the device in train is similar to that in elevation except that rotating the thumb knob to the UP position, i.e., clockwise, causes the launcher to train clockwise through 360. Turning the knob to the DOWN position in train causes the launcher to train counter-clockwise through 360. During any control through the brake control knob, the launcher may be stopped immediately by either depressing the EMERG- OFF push-button switch or releasing control knob 15. Upon completion of use, the deck station launcher control is stored at the site of the launcher in container 13.
There is thus provided by the present invention a hand-held control unit for at least bi-directionally controlling the movement of a missile or other launch device or equipment. This unit is located at the site of the equipment to be controlled and permits a single person to cause the equipment to assume desired positions within his purview and have one free hand for other duties or for his own safety. The hand control unit is portable to the full extent of the length of its cord so that the person operating the unit may move about the vicinity of the equipment without a significant impediment to his flexibility of movement. The controls on the hand unit are all operated by the thumb of the user leaving his fingers free to maintain a secure grip on the unit. The Controls are all recessed within the periphery of the configuration of the hand controlled unit so that they cannot be accidently actuated by dropping or by being accidently struck during movements of the operator. The hand controlled unit preferably is molded of a pliable plastic so that not only are the controls not ac tuable upon dropping but the unit itself may be dropped without causing physical damage to it. The
hand control unit is primarily used to control a surfaceto-air missile launcher during both loading and maintenance operations, but it will be appreciated that many modifications, variations and uses of the unit are possible in the light of the above teachings.
What is claimed is:
1. A hand-held device for controlling the operation of powered equipment by the natural movements of an operator's thumb comprising:
a handle grip member having a lower portion contoured to be comfortably gripped by the fingers of the right hand of the operator and an angular control portion extending from the handle grip lower portion and having specific control components deployed within ready reach of the thumb of said right hand;
said lower portion tapering from a wider base area remote from said control portion to a narrower area adjacent said control portion for more securely accomodating the operators right index finger;
said control components including a rotatable control knob in the lower left quadrant of said angular control portion immediately above the operators right thumb for permitting variable control of equipment connected thereto;
a toggle switch disposed immediately above said rotatable control knob for selecting the circuits to be thumb-controlled thereby; and
ON-OFF recessed pushbutton controls opposite said toggle switch for starting and stopping by thumb action the operation of the equipment to which said device is connected,
said control components being recessed within the outer configuration of the control portion so that accidental actuation of the control member either by the operators thumb or by other means is avoided; and
a control cable having a plurality of connectors therein removable received axially in said lower portion at the ends thereof remote from said control portion.
2. The device as defined in claim 1 wherein said control portion is asymmetrical with respect to said lower portion and is offset toward the thumb of an operators right hand so as to position said control knob substantially in alignment with the operators right thumb and opposite the terminal phalanx thereof.
3. The device as defined in claim 2 wherein said control knob has an initial, neutral, central position and is rotatable clockwise or counterclockwise to control opposite directions of movement in the equipment con-

Claims (3)

1. A hand-held device for controlling the operation of powered equipment by the natural movements of an operator''s thumb comprising: a handle grip member having a lower portion contoured to be comfortably gripped by the fingers of the right hand of the operator and an angular control portion extending from the handle grip lower portion and having specific control components deployed within ready reach of the thumb of said right hand; said lower portion tapering from a wider base area remote from said control portion to a narrower area adjacent said control portion for more securely accomodating the operator''s right index finger; said control components including a rotatable control knob in the lower left quadrant of said angular control portion immediately above the operator''s right thumb for permitting variable control of equipment connected thereto; a toggle switch disposed immediately above said rotatable control knob for selecting the circuits to be thumb-controlled thereby; and ON-OFF recessed pushbutton controls opposite said toggle switch for starting and stopping by thumb action the operation of the equipment to which said device is connected, said control components being recessed within the outer configuration of the control portion so that accidental actuation of the control member either by the operator''s thumb or by other means is avoided; and a control cable having a plurality of connectors therein removable received axially in said lower portion at the ends thereof remote from said control portion.
2. The device as defined in claim 1 wherein said control portion is asymmetrical with respect to said lower portion and is offset toward the thumb of an operator''s right hand so as to position said control knob substantially in alignment with the operator''s right thumb and opposite the terminal phalanx thereof.
3. The device as defined in claim 2 wherein said control knob has an initial, neutral, central position and is rotatable clockwise or counterclockwise to control opposite directions of movement in the equipment connected thereto.
US361391A 1973-05-17 1973-05-17 Hand-held control means Expired - Lifetime US3867600A (en)

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4180713A (en) * 1975-06-25 1979-12-25 Societe Anonyme Automobiles Citroen Switch control unit for automobile vehicle
EP0206923A1 (en) * 1985-06-14 1986-12-30 Association Pour La Rationalisation Et La Mecanisation De L'exploitation Forestiere A.R.M.E.F. Radio control transmitter, in particular for a foresting tractor or a similar vehicle
US4744322A (en) * 1985-06-19 1988-05-17 Sanshin Kogyo Kabushiki Kaisha Remote steering system for marine propulsion crafts
US4896558A (en) * 1988-06-01 1990-01-30 Deere & Company Control handle for a work vehicle
GB2227364A (en) * 1988-12-21 1990-07-25 Mannesmann Ag Pendant switch
US5042314A (en) * 1989-11-02 1991-08-27 Caterpillar Inc. Steering and transmission shifting control mechanism
US5365803A (en) * 1993-07-13 1994-11-22 Caterpillar Inc. Steering and transmission shifting control device
US5585608A (en) * 1994-03-10 1996-12-17 Siemens Aktiengesellschaft Operating handle including switches and pressure sensors for medical equipment
US6675733B2 (en) * 2000-10-31 2004-01-13 Nhk Morse Co., Ltd. Remote control device for small vessel
US20060000304A1 (en) * 2004-06-17 2006-01-05 Deere & Company, A Delaware Corporation Control lever with partially enclosed rotary wheel
US20060070482A1 (en) * 2004-06-17 2006-04-06 Deere & Company, A Delaware Corporation Control lever with rotary wheel
US20110088961A1 (en) * 2009-10-19 2011-04-21 Cnh America Llc Electronic throttle on control handle
US20140190713A1 (en) * 2011-08-26 2014-07-10 Husqvarna Ab Guide and Control Assembly

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2558109A (en) * 1945-03-09 1951-06-26 Stanzel Victor Single-line control for miniature aircraft
US2812405A (en) * 1956-04-02 1957-11-05 Superior Magneto Corp Electrical switch assembly
US3052785A (en) * 1958-08-16 1962-09-04 Herrmann Gunter Sound recording machines
US3086090A (en) * 1958-12-05 1963-04-16 Duff Norton Co Electric switching mechanism
US3198922A (en) * 1961-05-25 1965-08-03 Applic Mach Motrices Handle for pilot's lever

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2558109A (en) * 1945-03-09 1951-06-26 Stanzel Victor Single-line control for miniature aircraft
US2812405A (en) * 1956-04-02 1957-11-05 Superior Magneto Corp Electrical switch assembly
US3052785A (en) * 1958-08-16 1962-09-04 Herrmann Gunter Sound recording machines
US3086090A (en) * 1958-12-05 1963-04-16 Duff Norton Co Electric switching mechanism
US3198922A (en) * 1961-05-25 1965-08-03 Applic Mach Motrices Handle for pilot's lever

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4180713A (en) * 1975-06-25 1979-12-25 Societe Anonyme Automobiles Citroen Switch control unit for automobile vehicle
EP0206923A1 (en) * 1985-06-14 1986-12-30 Association Pour La Rationalisation Et La Mecanisation De L'exploitation Forestiere A.R.M.E.F. Radio control transmitter, in particular for a foresting tractor or a similar vehicle
US4744322A (en) * 1985-06-19 1988-05-17 Sanshin Kogyo Kabushiki Kaisha Remote steering system for marine propulsion crafts
US4896558A (en) * 1988-06-01 1990-01-30 Deere & Company Control handle for a work vehicle
GB2227364A (en) * 1988-12-21 1990-07-25 Mannesmann Ag Pendant switch
US5042314A (en) * 1989-11-02 1991-08-27 Caterpillar Inc. Steering and transmission shifting control mechanism
US5365803A (en) * 1993-07-13 1994-11-22 Caterpillar Inc. Steering and transmission shifting control device
US5585608A (en) * 1994-03-10 1996-12-17 Siemens Aktiengesellschaft Operating handle including switches and pressure sensors for medical equipment
US6675733B2 (en) * 2000-10-31 2004-01-13 Nhk Morse Co., Ltd. Remote control device for small vessel
US20070000344A1 (en) * 2003-10-30 2007-01-04 Easton David J Control lever with partially enclosed rotary wheel
US7275457B2 (en) 2003-10-30 2007-10-02 Deere & Company Control lever with partially enclosed rotary wheel
US20060000304A1 (en) * 2004-06-17 2006-01-05 Deere & Company, A Delaware Corporation Control lever with partially enclosed rotary wheel
US20060070482A1 (en) * 2004-06-17 2006-04-06 Deere & Company, A Delaware Corporation Control lever with rotary wheel
US20110088961A1 (en) * 2009-10-19 2011-04-21 Cnh America Llc Electronic throttle on control handle
US8100218B2 (en) 2009-10-19 2012-01-24 Cnh America Llc Electronic throttle on control handle
US20140190713A1 (en) * 2011-08-26 2014-07-10 Husqvarna Ab Guide and Control Assembly

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