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:
Oct. 21, 2003

Filed:

Aug. 27, 2001
Applicant:
Inventor:

Maura Jane Stafford, Grayslake, IL (US);

Assignee:

Sonnax Industries, Inc., Bellows Falls, VT (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 6/126 ; F16K 5/100 ;
U.S. Cl.
CPC ...
F16H 6/126 ; F16K 5/100 ;
Abstract

A replacement actuator feed limit valve assembly, which regulates the flow and pressure of automatic transmission fluid within the actuator feed limit hydraulic circuit in an automotive transmission valve body is disclosed. The present actuator feed limit valve assembly comprises a hard anodized valve piston disposed within a mating, full contact valve sleeve having inlet and exhaust ports disposed about its circumference which increases actuator feed limit circuit control, reduces oscillation, and eliminates side loading and bore wear thereby correcting improper gear starts, soft/delayed shifting and clutch/band failure. The present valve assembly also includes fluid directing structures, which reduce the turbulence of hydraulic fluid passing through the valve. By substitution of alternative compression springs provided in an aftermarket kit format, the present replacement actuator feed limit valve assembly will function in either General Motors 4L60E or 4L80E early and late design transmission valve bodies.


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Stafford, Maura. (2003). Actuator feed limit valve assembly (U.S. Patent No. 6634377). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6634377

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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