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:
Feb. 21, 1995
Filed:
Jan. 27, 1994
Applicant:
Inventor:
Stuart C Leach, Ilkley, GB;
Assignee:
The BOC Group plc, Windlesham, GB;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
A61M / ; F16K / ; G05D / ; F23D / ;
U.S. Cl.
CPC ...
12820325 ; 12820312 ; 12820326 ; 12820425 ; 12820524 ;
Abstract
An anaesthetic vaporizer includes a passageway 10, 30 for directing carrier gas through a fixed laminar restrictor 32 to a vaporizing chamber 26. Liquid anaesthetic agent is injected into the vaporizing chamber 26 from a constant level tank 12 the output of which is controlled by a laminar control valve 28. Liquid anaesthetic agent flow is determined by the pressure of carrier gas in the passageway 10, 30 and the setting of the liquid laminar control valve 28.