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.

Date of Patent:
May. 19, 2020

Filed:

Apr. 10, 2018
Applicants:

Ryan Bruce Anderson, Great Mills, MD (US);

Bradley Yost, Lexington Park, MD (US);

Matthew Stone, Lexington Park, MD (US);

Tiffany Lei, La Plata, MD (US);

Inventors:

Ryan Bruce Anderson, Great Mills, MD (US);

Bradley Yost, Lexington Park, MD (US);

Matthew Stone, Lexington Park, MD (US);

Tiffany Lei, La Plata, MD (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B21D 11/02 (2006.01); F16H 25/20 (2006.01); B29C 55/16 (2006.01); B21D 25/02 (2006.01); B21D 25/04 (2006.01);
U.S. Cl.
CPC ...
B21D 11/02 (2013.01); B21D 25/02 (2013.01); B21D 25/04 (2013.01); B29C 55/165 (2013.01); F16H 25/20 (2013.01);
Abstract

A tensioning device for a sheet of material that includes a first ring with protrusions, a second ring, and a shaft. The first ring and the second ring are positioned such that the sheet of material can be clamped between the first ring and the second ring. The shaft has an outer surface, the outer surface includes a spiral race such that the protrusions of the first ring follow the spiral race, allowing the first ring and the second ring to displace linearly causing the sheet of material to be stretched. The spiral race includes a plurality of notches that correspond to the protrusions.


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