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. 27, 1980
Filed:
Nov. 08, 1977
Paul W Miller, Warren, OH (US);
Wean United, Inc., Pittsburgh, PA (US);
Abstract
The disclosure pertains to a drive shaft for machines such as roller levellers for processing steel strip. The shaft is made up of outer and inner members, the latter driving the former. Between the members is provided a frictional driving surface such as can be provided by brake lining. The inner member has an opening into which is introduced a pressure medium such as solution of soluble oil which in a controllable and predictable manner expands the inner member thereby allowing the establishment of a driving relationship between the members up to a given torque and on the experience of excessive and objectionable torques allowing relative movement between the members.