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:
May. 17, 1977
Filed:
Jul. 22, 1975
Kenneth Henry Marshall, Castlecrag, AU;
Premach Pty. Limited, Sydney, AU;
Abstract
A dental surveyor to be used by a mechanic for the preparation of a jig carrying a cutting-bur guide sleeve to assist a dental surgeon in tooth preparation for the anchoring of a bridge, the surveyor comprising a pair of parallel traversing arms carrying a stylus and a sleeve holder, respectively, a worktable on an adjustable universal mount at an upper end of a stem also supported for universal movement in an intermediate clamping housing, and a floor beneath the stem and having two concentric tracks selectively engageable by the end of the stem, the inner track when engaged confining the worktable to rotation about a fixed fulcrum and the outer track when engaged confining the worktable to rotation and swivelling at a predetermined inclination to the axis of the fixed fulcrum, thus enabling the mechanic to vary the axes of the sleeves of successively prepared jigs so that tooth reduction by the surgeon on the patient may be achieved.