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:
Sep. 21, 1999
Filed:
Aug. 01, 1996
Applicant:
Inventors:
Evelyn A Shervington, Nr. Petersfield, GB;
David W Birch, Bordon, GB;
Assignee:
The BOC Group plc, Windlesham, GB;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
A61M / ;
U.S. Cl.
CPC ...
222-4 ; 222-3 ; 222637 ; 2225416 ; 215 49 ; 215253 ; 220266 ; 604 70 ; 604200 ;
Abstract
A gas delivery system includes a capsule for storing a propellant fluid, e.g. helium under pressure, e.g. between about 60 and 80 bar. The capsule is provided with a stopper having a stem formed with a frangible section. In use, mechanical means is employed to rupture the stem about the frangible section to release the fluid under high pressure.