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. 13, 1998
Filed:
Jun. 10, 1997
James A Butcher, Memphis, TN (US);
Other;
Abstract
A linear motion to rotary motion converter. A moving cam carrier reciprocates with respect to a rotating turntable having a plurality of fingers, preferably roller bearings, secured to and extending from the turntable parallel to the axis of rotation of the turntable and radially spaced from the axis. The number of rollers extending from the turntable determine the number of indexed stop positions of the turntable. The cam carrier has two movable cams and also has two retaining members that are attached to the cam carrier and respectively spaced from the movable cams so as to define channels, between the respective pairs of movable cams and retaining members, through which the roller bearing fingers of the turntable are constrained to move. The curvature and shape of the channels determines the velocity profile of the turntable as the cam carrier reciprocates. The invention also has lock positions at either end of the reciprocating cam carrier's movement in which the turntable is locked from rotation in either direction.