Tool for venting hydraulic systems

Details Tool for venting hydraulic systems Tool for venting hydraulic systems

1993-04-15

1994-04-12

Smith, James G.

Tools

Wrench, screwdriver, or driver therefor

Rigid jaws

811211, 188352, 251148, B25B 1300

Patent

active

053015754

ABSTRACT:
A tool for venting hydraulic systems comprises a tubular tool element which forms a polygonal wrench at a first end. A flexible drain tube extends through the tubular tool element. An end of this drain tube is adapted to be pushed on the nipple of a venting valve. A metal sleeve is located in the flexible drain tube, and a clamping device is provided on the tool element adjacent the metal sleeve for clamping the flexible drain tube to the tool element. This facilitates the assembly and use of the tool. With such a tool, a venting valve is unscrewed to a limited extent through the polygonal wrench such that air is allowed to be vented from the system. The venting valve has a nipple. A flexible drain tube is placed on this nipple. The flexible drain tube prevents uncontrolled outflow of hydraulic liquid from the hydraulic system, thereby preventing contamination of the environment. Instead the hydraulic liquid is guided into a collecting reservoir. Such tools may be used for venting brake systems in vehicles or for venting other hydraulic systems such as heating systems.

REFERENCES:
patent: 3677513 (1972-07-01), Truelove
patent: 3809354 (1974-05-01), Truelove
patent: 3855882 (1974-12-01), Wittmann

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