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US 4,905,731 AGranted
Brake bleeder wrench
OwnerKenneth K. Tamashiro, George Spectorinventors
Life of this patent
Estimating the term…
Abstract
A brake bleeder wrench is provided with a transparent bleeder tube having a magnifying lens along upper portion thereof to improve visibility of air bubbles leaving the bleeder valve when the wrench opens the bleeder valve. In a modified form the head of the wrench contains an interchangeable drive hex socket to compensate for different types of bleeder valves.
Claims3
A brake bleeder wrench which comprises:
- (a) a head having a bore therethrough with a drive hex socket at one end to detachably receive a bleeder valve from a hydraulic automatic brake system;
- (b) a beaded end portion rotatably connected to opposite end of said head, said beaded end portion having a bore therethrough fluidly connected with the bore of said head for discharging brake fluid and air bubbles therefrom;
- (c) an O-ring disposed between said head and said beaded end portion for sealing the bore connection therebetween;
- (d) a handle rigidly connected transversely to the bore of said head so as to turn said head to open and close the bleeder valve;
- and
- (e) a transparent bleeder tube connected to said beaded end portion, said tube having a magnifying lens along upper chamber portion thereof so as to improve visibility for viewing the air bubbles discharging from said beaded end portion when the drive hex socket of said head turns to open the bleeder valve while said beaded end portion is held in a relative stationary position thereto.
3 more elements
Dependencies are inferred from the claim text.