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:
Apr. 14, 1981
Filed:
Apr. 02, 1980
Donald M Berlin, Jr, McHenry, IL (US);
Eaton Corporation, Cleveland, OH (US);
Abstract
A calibration mechanism for a pressure switch of the type utilizing a rotary cam which controls the setting of a spring-biased plunger to establish pressure levels required to actuate the switch. The calibration mechanism includes a support bracket mounted on the switch and a cam assembly including an integrally formed cam member and camshaft. A plunger adjustment mechanism includes a pivotally mounted lever having a cam follower in following engagement with the cam. The support bracket defines a bore adapted to receive the camshaft. The cam has a range of rotational orientations in which the cam follower engages the operative portion of the cam profile. The camshaft includes a projection extending radially therefrom which is axially disposed from the cam a predetermined distance greater than the axial length of the bore in the support bracket. The support bracket defines a slot extending from the bore. The cam assembly is assembled to the support bracket by orienting the cam assembly relative to the bracket such that the projection on the camshaft passes through the slot as the camshaft is inserted in the bore. The cam assembly is then rotated to the operable range of angular displacement in which the projection is angularly offset from the slot, thus axially retaining the shaft of the cam assembly in the bore of the support bracket.