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:
Mar. 16, 1982
Filed:
Jan. 29, 1981
Christian Grane, Kokedal, DK;
Other;
Abstract
A portable suction pump for life-saving purposes and normally driven by compressed gas. The pump includes a pump assembly having a suction chamber with an outlet leading to the ambient atmosphere and an inlet communicating with a secretion-receiving reservoir with attached tubing permitting suction of secretion, primarily from the air ducts of an unconscious patient. The pump is characterized by the pump assembly having a housing enclosing the suction chamber and closed at one end by a first annular diaphragm and, centrally sealingly attached thereto, a rigid body guided for movement relative to the housing and having wall portions defining, together with part of the housing, a motor chamber delimited from the suction chamber by a second annular diaphragm. The motor chamber communicates with a driving gas supply and exhaust connections and a valve arrangement for the intake and exhaust of compressed driving gas.