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:
Oct. 30, 2012
Filed:
Feb. 13, 2009
Applicant:
Henry Warn Jackson, Sherwood, OR (US);
Inventor:
Henry Warn Jackson, Sherwood, OR (US);
Assignee:
A-dec, Inc., Newberg, OR (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A47C 3/20 (2006.01);
U.S. Cl.
CPC ...
Abstract
A fluid control system for use with a patient support apparatus is moveable from a first height to a second height. The system includes a lift arm and a substantially upright cylinder. A first end of the lift arm is pivotably coupled to a base member and a second end of the lift arm is coupled to a chair structure. The cylinder assembly has a base portion and an extendable member configured to contact and support the lift arm. The cylinder assembly includes a bypass valve having a first end in fluid contact with an upper reservoir and a second end in fluid contact with a lower reservoir.