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:
Sep. 05, 1989
Filed:
Jan. 12, 1989
Hugh J McCrackin, Pineville, NC (US);
Pelton & Crane, Charlotte, NC (US);
Abstract
A headrest tilting mechanism includes a bar having first and second ends, with a headrest mounting portion proximate the first end and a substantially straight portion proximate the second end. A support means includes a curved cam surface and a pin having ends rotatably coupled to the support means. The pin has a cross-slot therethrough and a portion of the bar which is intermediate the first and second ends passes through the cross-slot. A cam following means attached to the bar proximate the second end causes the second end to follow the cam surface of the support means. With this arrangement, the curved cam surface is not located at the very top of the chair back and therefore the head of the patient can be significantly closer to the lap of the dentist than prior art arrangements.