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. 07, 2002
Filed:
Dec. 04, 2000
Yin Ming Wang, Stillwater, OK (US);
Other;
Abstract
A plane constructed shaft system used to replace the cylindrical shaft in precision polishing apparatuses. Thus, the accuracy, productivity and cost of polishing apparatuses are improved. The shaft system has a four-surface hollow prism bushing and a four-surface prism shaft that can slide freely within the bushing. The polishing pressure is maintained by the weights of the shaft plus the parts attached to the shaft, but this pressure can be reduced by adjusting a load adjusting nut which compresses a loading spring acting on a collar stop attached to the shaft. The actual polishing pressure can be calculated according to the position of the load adjusting nut. Furthermore, the stock removal amount can be controlled by a stock removal stop ring which is mounted on the collar stop and can be adjusted up and down as required.