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.:
Date of Patent:
May. 09, 2000
Filed:
Feb. 17, 1998
Benoit Le Rossignol, Rennes, FR;
Francedilla.ois Bonhoure, Le Chesnay, FR;
Automobiles Peugeot, Paris, FR;
Automobiles Citroen, Neuilly sur Seine, FR;
Abstract
Hydropneumatic accumulator of the type comprising a sphere having an internal cavity subdivided into two chambers, one chamber containing a gas and the other a liquid. The subdivision is accomplished by an elastic impermeable membrane for the gas and liquid, the membrane being formed and comprising a copolymeric impermeable film including OH groups, and being impermeable to gas, two layers between which the film is incorporated and including an elastic material of a copolymer having blocks of polyamides and blocks of polyethers and a rubber coating of elastic material positioned on at least one of the layers.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile