One-way valve for plugging the brake air line of a tractor trailer when working on the air brake system
Burnight December 7, 1
U.S. patent number D342,051 [Application Number 07/705,177] was granted by the patent office on 1993-12-07 for one-way valve for plugging the brake air line of a tractor trailer when working on the air brake system. Invention is credited to Charles J. Burnight.
| United States Patent | D342,051 |
| Burnight | December 7, 1993 |
One-way valve for plugging the brake air line of a tractor trailer when working on the air brake system
Claims
The ornamental design for a one-way valve for plugging the brake air line of a tractor trailer when working on the air brake system, as shown and described.
| Inventors: | Burnight; Charles J. (Springfield, IL) |
|---|---|
| Appl. No.: | 07/705,177 |
| Filed: | May 24, 1991 |
| Current U.S. Class: | D12/180 |
| Field of Search: | ;D12/180 ;D23/235,237 ;73/39 ;303/22.1,22.2,84.1,84.2,1 |
References Cited [Referenced By]
U.S. Patent Documents
| 4361362 | November 1982 | Fauck |
Other References
|
Commercial Carrier Journal, May 1990, PT21 Part for Air Conditioning & Heating System of A Truck.. |
Primary Examiner: Gandy; James M.
Attorney, Agent or Firm: Gernstein; Terry M.
Description
FIG. 1 is a perspective view of the one-way valve for plugging the brake air line of a tractor trailer when working on the air brake system embodying the design of the present invention.
FIG. 2 is a front end elevational view thereof.
FIG. 3 is a rear end elevational view thereof.
FIG. 4 is a side elevational view thereof, the side opposite being a mirror image of the side shown in FIG. 4.
FIG. 5 is a top plan view thereof.
FIG. 6 is a bottom view thereof.
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