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:
Dec. 04, 1984
Filed:
May. 13, 1982
Applicant:
Inventor:
James N Tootle, Kalamazoo, MI (US);
Assignee:
Pneumo Corporation, Boston, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F15B / ; F15B / ;
U.S. Cl.
CPC ...
91 45 ; 9141 / ; 91515 ; 92 33 ;
Abstract
An actuator system characterized by parallel connected flow regulator valves for controlling the flow of fluid to and from the extend ends of a corresponding number of fluid actuators. Retract orifices in the fluid lines leading to the retract ends of the actuators prevent cavitation of the extend ends of the actuators under an aiding air load pulling the actuators out during extension thereof.