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:
Aug. 15, 1978
Filed:
Sep. 07, 1976
Erwin Salzer, Waban, MA (US);
Gould Inc., Newburyport, MA (US);
Abstract
Contact pressure is established by means of two screw-nuts mounted on a stud projecting from, and affixed to, a contact member. There is a first cooperating pair of screw-threads between said stud and a drive screw-nut and a second cooperating pair of screw-threads between said drive screw-nut and a driven screw-nut. All screw-threads are oriented in such a way that the axial movements of said driven screw-nut relative to said stud are the sum of the axial movements of said drive screw-nut relative to said stud plus the relative axial movements of said drive screw-nut and said driven screw-nut. Means are provided for inhibiting any relative rotary motions of said driven screw-nut and said stud.