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:
Jun. 06, 1989
Filed:
May. 12, 1988
Applicant:
Inventors:
Eric Coffre, Trappes, FR;
Daniel Gary, Versailles, FR;
Christophe di Giulio, Neuilly-sur-Seine, FR;
Gerard Loiseau, Bois D'Arcy, FR;
Gerard Torelli, Vanves, FR;
Assignee:
L'Air Liquide, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ; F16K / ;
U.S. Cl.
CPC ...
13750542 ; 13750539 ; 137549 ; 137550 ;
Abstract
A pressure reducer, especially adapted for the supply of very pure gas in the electronics industry, which comprises a final stage having an inlet, pressure-reducing means and a low-pressure outlet. A filter having a filtration threshold lower than a micron is interposed between the pressure-reducing means and the low pressure outlet.