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. 21, 2008
Filed:
Jan. 06, 2006
Applicant:
Ralph E. Burns, Louisville, CO (US);
Inventor:
Ralph E. Burns, Louisville, CO (US);
Assignee:
Joerns Healthcare Inc., Stevens Point, WI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61G 7/10 (2006.01); B66D 1/06 (2006.01); B66F 17/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A load sensing safety device comprises a pulley shaft carrying a pulley. The pulley, in turn, carries a belt that effectuates movement of the patient lift boom. A biasing element applies a spring force against the pulley shaft to move the pulley shaft in a first direction. A switch that opens and closes responsive to movement of the pulley shaft, whereby the switch opens where the pulley shaft is moved to a first position by movement of the spring in the first direction.