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.

Patent No.:

US 7779745 B1

PDF
Full Text
Expired
Date of Patent:
Aug. 24, 2010

Filed:

Aug. 07, 2007
Applicant:

Louis-claude Porel, Jeanmenil, FR;

Inventor:

Louis-Claude Porel, Jeanmenil, FR;

Assignee:

Hydro Leduc, Azerailles, FR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F15B 15/26 (2006.01);
U.S. Cl.
CPC ...
Abstract

An automatic-locking hydraulic jack has a piston () that slides into a cylinder (-). Locking of the piston is achieved by elastic deformation of either the inside wall () of the cylinder or of the outside wall of the piston () so as to ensure that the one is tightly clamped over the other. The locking of the jack is maintained by pressure that causes the elastic deformation of the inside wall of the cylinder (-) or of the outside wall of the piston (), until the jack is unlocked by neutralizing the elastic deformation.


Find Patent Forward Citations

Porel, Louis-Claude. (2010). Automatic-locking hydraulic jack (U.S. Patent No. 7779745). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7779745

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

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