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. 01, 1984
Filed:
Jan. 08, 1981
Harold R Havstad, Eagle Point, OR (US);
Hudson Oxygen Therapy Sales Company, Temecula, CA (US);
Abstract
A percussor assembly comprises a rigid body member having a gas inlet passageway and gas outlet passageway, a movable gas sealing member, and a gas pressure chamber communicating with the gas inlet passageway, the gas sealing member being forced from a first position forming a gas-tight seal between the gas pressure chamber and the gas outlet passageway to a second position in which the chamber and passageway are in communication to allow a burst of gas to pass from the chamber into the outlet passageway. A percussion head, which may be remote from the body member receives the burst of gas, the bursts being created successively at the percussion head.