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:
Mar. 23, 1993
Filed:
Jan. 24, 1992
Applicant:
Inventor:
Gordon M Sommer, Grosse Pointe Farms, MI (US);
Assignee:
Sommer Company, Warren, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16D / ; F16H / ;
U.S. Cl.
CPC ...
192 / ; 74661 ; 192 482 ; 1921 / ;
Abstract
A two speed drive for an apparatus which uses DC electrically actuated oil shear brake/clutch units is disclosed. The two speed drive directly connects the output to a first input for high speed movement using a DC voltage coil to actuate the clutch/brake for low speed operation. The output is connected to a second input through a gearing system using another DC voltage coil to actuate the clutch/brake. The DC voltage coils provide a repeatable and variable acceleration curve for exact operation of the drive.