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:
Jan. 26, 1993
Filed:
Nov. 22, 1991
Applicant:
Inventor:
Guy Immega, Vancouver, CA;
Assignee:
Kinetic Sciences Inc., Vancouver, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F15B / ; F01B / ;
U.S. Cl.
CPC ...
91418 ; 92 34 ; 92 48 ; 92 49 ; 92 90 ; 92 92 ;
Abstract
A bellows actuator has at least one bellows chamber comprising at least three chamber segments arranged around an axis. Each of the chamber segments forms a radially outwardly extending protrusion comprising four chamber wall portions, which merge with one another along fold lines which extend peripherally and radially of the bellows chamber and converge radially outwardly to meet at radially outermost apexes of the chamber segments. The bellows actuator is expansible and contractible along the axis by flexure of the wall portions relative to one another about the fold lines in response to pressure changes within the bellows chamber.