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:
Sep. 16, 2003
Filed:
Mar. 23, 2001
Applicant:
Inventors:
Terence Edward Weston, Eye, GB;
Graham Roger Gibbins, Brundall, GB;
Matthew Simon Nussey, Sheffield, GB;
Assignee:
Weston Medical Limited, Suffolk, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A67M 3/700 ;
U.S. Cl.
CPC ...
A67M 3/700 ;
Abstract
A pressurised gas powered actuator comprising a piston ( ) operating in a cylinder ( ). The stroke of the piston ( ) may be reduced by uncovering one or more holes ( ) in the cylinder wall to permit the escape of the pressurised gas at a predetermined position along the swept wall of the cylinder. Alternatively, the piston ( ) may be connected to a rod ( ) which has a gas vent ( ) formed therein, the position of the rod ( ) with respect to the piston ( ) being variable to adjust the stroke of the piston ( ).