One-way valve for plugging the brake air line of a tractor trailer when working on the air brake system
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.
Referenced Cited
U.S. Patent Documents
Other references
| 4361362 | November 30, 1982 | Fauck |
- Commercial Carrier Journal, May 1990, PT21 Part for Air Conditioning & Heating System of A Truck.
Patent History
Patent number: D342051
Type: Grant
Filed: May 24, 1991
Date of Patent: Dec 7, 1993
Inventor: Charles J. Burnight (Springfield, IL)
Primary Examiner: James M. Gandy
Attorney: Terry M. Gernstein
Application Number: 7/705,177
Type: Grant
Filed: May 24, 1991
Date of Patent: Dec 7, 1993
Inventor: Charles J. Burnight (Springfield, IL)
Primary Examiner: James M. Gandy
Attorney: Terry M. Gernstein
Application Number: 7/705,177
Classifications
Current U.S. Class:
Brake Element (D12/180)
