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, 1990
Filed:
Oct. 02, 1989
John A Engelhardt, Warsaw, IN (US);
Richard R Tarr, Warsaw, IN (US);
Boehringer Mannheim Corporation, Indianapolis, IN (US);
Abstract
A transmission for converting rotary motion to simultaneous reciprocating motion of a tool in two mutually transverse directions. A driver is selectively attached to one end of an input shaft and the opposite end of the input shaft terminates at an eccentric cam. An output shaft extends between a driven end and a working end. The driven end is apertured to rotatably receive the eccentric cam and the output shaft is slidably received in the diametrically extending bore of a spherical bearing member. Upon rotation of the input shaft, the working end of the output shaft is caused to reciprocate toward and away from the input shaft and, simultaneously, laterally relative to a longitudinal axis of the input shaft. The working end of the output shaft may be provided with appropriate cutting teeth to enable its use, for example, as a power broach for the precise removal of bone to enable proper implantation of a prosthetic device. In another embodiment, the working end may be movable in three mutually transverse directions.