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:
Apr. 24, 1984
Filed:
Aug. 27, 1981
Raymond S Gregory, Bingley, GB;
The Medishield Corporation Limited, London, GB;
Abstract
An anaesthetic vaporizer of the by-pass type has a sump 7 with an outlet flow path comprising a first run 27 leading upwardly, a second run 30 leading downwardly and a third run 32 leading upwardly again. A duct 23 connects the lower end of the run 30 with the lower part of the sump and in normal operation is sealed by the sump liquid. However, if the vaporizer is displaced such that the liquid flows from the sump into runs 27 or 30 of the outlet flow path the liquid inevitably drains from the duct 23. A flow path for inflowing gas is thereby opened directly to the downstream end of the run 30, preventing the over-administration of vapor from the device and removing any danger of liquid anaesthetic being blown through the device from the runs 27 and 30.