US2015469A - Concealed antisiphon lavatory and sink trap - Google Patents

Description

J. F. CHURCH CONCEALED ANTISIPHON LAVATORY AND SINK TRAP Filed Aug. 16, 1934 Set. 24, W35.

Patented Sept. 24, 1935 UNITED STATES PATENT OFFICE CONCEALED ANTISIPHON LAVATORY AND SINK TRAP 1 Claim.

This invention relates to a novel trap for use in connection with the outlet of sinks and lavatories enabling installation in a wall, whereby it is concealed, and the space beneath the sink or lavatory is left substantially unobstructed so that it may in particular accommodate a radiator, with the sink or lavatory coacting therewith to prevent the rise of heat and insure its radiation laterally.

It is further aimed to provide a novel construction capable of manufacture for the most part, in a single piece, and with a minimum number of connections, the fitting also for the most part being capable of manufacture and use without requiring a finish or polish.

The more specific objects and advantages will become apparent from a consideration of the description following taken in connection with accompanying drawing illustrating an operative embodiment.

In said drawing:-

Figure 1 is a view partly in elevation and partly in section showing the improvement used in connection with a sink or lavatory;

Figure 2 is an enlarged side elevation of the trap;

Figure 3 is an enlarged side elevation of the trap, reverse to Figure 2, and

Figure 4. is a vertical sectional view taken on the line 4-4 of Figure 2.

Referring specifically to the drawing, Ill designates a conventional sink, lavatory, or the like, and H a vertical wall to which it is fastened. The drain or outlet pipe from the element II) is shown at I2.

The improved trap constituting my invention is generally designated I 3. Such trap is disposed within the wall I I, having an inlet nipple or connection at I4, suitably screw-threaded, like the pipe I 2, so that a nut l5, suitably packed may connect such parts.

Said fitting I4 is one end of a vertical pipe [6 which communicates at its base with the lower end of a chamber [1, and which chamber at its upper end communicates with an outlet pipe l8, suitably screw-threaded at l9, so that by means of a nut or otherwise at 20, it may be connected to drain pipe 2| leading to the sewer.

In the front, lower portion of the chamber I 1, a boss 22 is provided which is normally closed by a plug or cap 23 screw-threaded therein as at 24. The parts l4, l6, l1, l8, and 22 are preferably in a single piece so that they may be manufactured at minimum cost. The only elements exposed are the nut l5 and the cap 23. If desired, such exposed elements I5'and 23 may be nickle-plated or 10 otherwise polished or finished. The remainder of the device, however, being concealed, may be used in the rough, that is, without polishing or finishing. The one piece construction greatly minimizes the danger of leaks, and enables more rapid 15 installation.

The device constructed as described, will not siphon when used in a system which is not vented.

It will be realized that practically all of the space beneath the sink or lavatory I9 is rendered 20 available for use, by reason of the invention. Such space particularly accommodates a radiator or a heating system and the sink or lavatory prevents the rising of heat and on the contrary serves to cause the same to be laterally radiated. 25

Various changes may be resorted to provided they fall within the spirit and scope of the invention.

I claim as my invention:

A trap of the class described adapted to be 30 located in a wall having a chamber member, an inlet pipe for said chamber member communicating therewith adjacent the base of the chamber member, an outlet pipe for said chamber member communicating therewith at substan- 35 tially the top of the chamber member, said inlet pipe having a portion extending forwardly for connection to a drain from a sink or the like, said chamber having a drain plug device extending forwardly therefrom adjacent its base, said inlet 40 pipe and drain plug device opening in substantially the same plane at the front of the trap, said parts being in one piece, and external screwthreads on the terminals of each of said pipes.

45 JAMES F. CHURCH.

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