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:
Aug. 13, 1991

Filed:

Mar. 15, 1991
Applicant:
Inventor:

Hiroto Iwata, Saitama, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05D / ;
U.S. Cl.
CPC ...
137503 ; 137117 ;
Abstract

A flow rate control valving apparatus includes a housing, a plug connector, and a tubular member. The housing has a valve bore in which a spool is movably housed. The plug connector is provided opposite to one end portion of the spool to form a high-pressure chamber for receiving a pressurized fluid from a pump between the spool and the plug connector. A small-diameter opening is formed in a portion of the plug connector opposite to the high-pressure chamber, and a supply passage connected to the small-diameter opening is formed in the plug connector to supply the pressurized fluid to a fluid system. The tubular member is fixed at a position in the supply passage in the plug connector, at which the tubular member engages with the distal end of an adjusting rod portion of the spool to regulate the movement of the spool toward the high-pressure chamber, and serves as a stopper for regulating the movement of the spool. A small hole portion communicating with the supply passage is formed in the tubular member, and an internal passage of the tubular member communicates with the small hole portion and the pressure guide passage extending to the other end portion of the spool.


Find Patent Forward Citations

Iwata, Hiroto. (1991). Flow rate control valving apparatus (U.S. Patent No. 5038822). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5038822

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

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