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. 01, 2018
Filed:
Dec. 11, 2015
Applicant:
Research Engineering & Manufacturing Inc, Middletown, RI (US);
Inventor:
Alan Pritchard, Cornwall, GB;
Assignee:
Research Engineering & Manufacturing INC, Middletown, RI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16B 35/06 (2006.01); F16B 23/00 (2006.01); B25B 15/00 (2006.01);
U.S. Cl.
CPC ...
F16B 23/0023 (2013.01); B25B 15/005 (2013.01); F16B 23/003 (2013.01);
Abstract
A screw recess and driver combination that comprises the use of varying frustums of differing cones to provide driver/recess contact faces that are elliptical.