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. 28, 1996
Filed:
Mar. 28, 1994
Keith Whitaker, Keighley, GB;
The BOC Group plc, Windlesham, GB;
Abstract
An anaesthetic vaporizer includes a concentration dial for controlling the concentration of anaesthetic leaving the vaporizer. The vaporizer is adapted to be mounted on a back bar of an anaesthesia machine. An exclusion pin is mounted adjacent the back bar and forms part of an interlock system for preventing rotation of the concentration dial when a second vaporizer is also mounted on the back bar and is dispensing anaesthetic vapor. A button assembly is mounted on the concentration dial and must be depressed before the concentration dial can be rotated. The button assembly incorporates an overload device which, if excessive force is applied to the button assembly in order to override the effect of the exclusion pin will render the button assembly inoperative.