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. 01, 1988
Filed:
Feb. 19, 1986
Applicant:
Inventors:
Douglas R Mongeon, Orange, CA (US);
Frederick J Palensky, St. Paul, MN (US);
Assignee:
Minnesota Mining and Manufacturing Company, Saint Paul, MN (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02J / ;
U.S. Cl.
CPC ...
320-2 ; 310 50 ; 318139 ; 429 86 ; 128 / ;
Abstract
A cordless rechargeable replaceable battery assembly powered drive assembly for driving orthopedic surgical instruments in which the battery has silver and zinc oxide electrodes in sodium hydroxide electrolyte to provide low voltage high current power. The switch is encased in the battery assembly, the battery cells are vented through a microporous polymeric curtain to restrict expulsion of electrolyte, a two speed transmission is provided to change drive speeds, and a brush block on the motor has contacts adapted to be connected in different combinations to change the motor rotation direction.
Published as:
AU6888887A; JPS62203523A; KR870007688A; EP0238204A1; US4728876A; AU589740B2; CA1281374C; EP0238204B1; DE3780486D1; DE3780486T2;