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:
Jun. 29, 1976
Filed:
Dec. 17, 1974
Henrik Gerner Olrik, 3050 Humlebaek, DK;
Other;
Abstract
This invention concerns an apparatus for the conversion of a rotary motion into an axial motion, said apparatus comprising a number of rolling bearings having larger inner diameter than the outer diameter of a shaft, which extends through the bearings in such a manner that the bearings exert radial forces on the shaft, the vectorial sum of said forces being equal to zero. Each bearing is supported in a recess in one of two or more jaws, said recesses being arranged so that the axis of each bearing is inclined relatively to the axis of the shaft in such a way that each bearing will roll along a helical line on the surface of the shaft. The jaws are totated in common and the jaws are provided with clamping means adapted for increasing the radial forces against the shaft in response to the axial load on the shaft.