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:
Jan. 05, 2021
Filed:
Jun. 09, 2017
Applicant:
Punk Couplings Limited, Bristol, GB;
Inventor:
Simon Parker, Bristol, GB;
Assignee:
Punk Couplings Limited, Bristol, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 25/24 (2006.01); F16H 25/20 (2006.01);
U.S. Cl.
CPC ...
F16H 25/24 (2013.01); F16H 2025/204 (2013.01); F16H 2025/2445 (2013.01);
Abstract
A nut for a lead screw comprises two or more concentric annular members which, when aligned, have common axes. One member is contained within another member outside it. A first member has an outer convex spherical periphery and a second member has an inner spherical concave periphery, the peripheries being concentric with the centre, and the inner periphery of the second is engaged with the outer periphery of the first member. The second member is constrained to rotate about the first member on an axis perpendicular to the common axis.