US1528153A - Automobile cushion - Google Patents

Description

Mar. 3, 1925.

B. KERR AUTOMOBILE CUSHION Filed Deo. '2, 1923 INVENTOR Kerr;

WITNESSES A TTORNE YS y Patented Mar. 3, 1925.

UNITED STATES 1,528,153 PATENT OFFICE.

BENJAMIN KEER, 0F SARNIA, ONTARIO, CANADA.

AUTOMOBILE CUSHION.

Application-tiled December 7, 1923. Serial No. 679,155.

To all lwhom t may concern:

Be it known that I, BENJAMIN KERR, a subject of the King of England, and resident of Sarnia,in the county of Lambton, in the Province of Ontario, in the Dominion of Canada, have invented certain new and useful Improvements in Automobile Cushions of which the following is a specification.

This invention relates to improvements in cushions especially adapted for use on automobiles although not restricted to such use.

Briefly stated an important object of this invention is to provide a cushion consisting of a series of approximately air tight units having novel means whereby the air may b'e expelled when the cushion is compressed and slowly admitted when the compressing force is released, so as to prevent or overcome an objectionable rebound usually present in cushions.

A further object of the invention is to provide a cushion consisting of a plurality of separate and independent units held-in an upright position by means of spiral loops which resist atmospheric pressure when the pressure within the cushion is reduced.

A further object is to which is of highly simplified construction, durable in use and cheap to manufacture.

Other objects and advantages will be. appa-rent during the course of the following description. y

In t-he accompanying drawings forming a part of this application and in which like numerals are employed to designate parts throughout the same,

Figure 41 is a detail horizontal sectional view illustrating-the improved cushion.

Figure 2 is a vertical transverse sectional view through the same, Y

Figure 3 is a detail bottom plan view of the invention. l In thedrawing wherein for the purpose of illustration is shown a preferred embodiment ofthe invention, it will be seen 'that the improved cushion is made up of a series of more orl less separate and independent units surrounded by coils 5. About nineteen (19) coiled springs 6 are arranged within each spiral bodyv 5 and are enclosed within a llexible covering 7 o approximately airtight` material. The spirals 5 are also covered by the material 7 A main covering l1() is extended over the several units and the additional springs 12 and is provided with a filling 18 of any cape, but

provide a cushion `like v suitable material. The top of the inner cov-- ering 7 is arranged below Ithe partition 14 which ldivides the cushion into an upper chamber for the reception of .the filling 13 and a lower chamber vfor the reception o the several springs. v

The bottom of each unit is provided with an outlet ilap valve 16 which when the cushion is depressed will permit the air to es-v will prevent the return of the air by way of the flap valve. Any air which enters the several chambers must do so by way of inlet openings 20, covered or partly covered by slide valves'21. By proper adjustment ofthe slide valves 21 the amount of air to enter the cushion may be regulated.

It will be. .seen that the several more or less separate and independent units are mounted on the bottom of the cushion and when the cushion is compressed a portion of the air will be' expelled by way of the several valves 16. During the expansion of the springs the atmospheric pressure within the cushion is necessarily reduced and at this t time .the spirals or loops 5 prevent the collapse ofthe several units as they withstand atmospheric pressure. Briefly stated, on the outside of the loops 5 and on top of the springs is a lexible covering approximately air-tight. This makes each unit independent from allother springs or units. Outsidethe several units free atmospheric pressure is allowed and it is not necessary for the outer covering 10l to be air-tight.

With reference to the foregoing description, taken 4in connection with the accompanying drawings, it will be seen that the improved cushion will effectively absorb shocks and will reduce any rebound to a minimum and the return of the cushion to normal position is gradual.

Having thus described the invention, is claimed is A cushion comprising a plurality of4 sep-- arate covering members having substantially air-tight chambers,- separate Vgroups of springs in said chambers, form sustaining. coil springs for said covering members ar-` ranged in said chambers, and surrounding said iirst named springs, said chambers being provided with one-way air outlet'A valves for the discharge ofair when the cushion is compressed and with means to admit a variable volume of air on the expansion of the cushion,

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