The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jul. 06, 1982

Filed:

Nov. 26, 1979
Applicant:
Inventor:

Peter H Sheppard, Hanover, PA (US);

Assignee:

Other;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F15B / ; F16K / ;
U.S. Cl.
CPC ...
91422 ; 91378 ; 251270 ; 13762569 ;
Abstract

An adjustable guide pin arrangement for an integral power steering gear is provided. A reciprocating valve is provided within the piston of the gear to selectively distribute pressurized fluid to the end of the piston for steering action. An input shaft engages the valve to move the valve providing the input signal. An output pinion engages the piston along the side. The guide pin is mounted in the piston and has two pairs of tapered flat guide surfaces at its distal end. One pair of guide surfaces engages a corresponding tapered slot in the valve for each adjusted position. Screw threads are provided to adjustably move the pin inward for less clearance and outwart for more clearance between the guide surfaces and the sides of the slot. The taper of the distal end of the pin is approximately 2.degree.-21/2.degree.. Each quarter turn preferably provides a differential clearance of approximately 0.001 inch. A tool-engaging slot on the head of the pin provides for easy visual adjustment during assembly.


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