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. 06, 1989
Filed:
Jun. 02, 1988
John T Graef, Erwinna, PA (US);
Lutron Electronics Co., Inc., Coppersburg, PA (US);
Abstract
A knob mounts on one end of a shaft whose other end guides a slidable element, such as the wiper of a slide potentiometer. The shaft has an elongated cross section, and the knob has a pair of generally parallel raised ribs on each of two facing interior sides. The ribs guide and secure the shaft into the knob. If the knob is twisted rather than slid, the knob comes off, but any deformation of the ribs and/or shaft is minimal and does not prevent the knob and shaft from being reused. The knob is particularly adapted for use with a notched, split shaft.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile