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:
Jan. 27, 2015

Filed:

Jan. 08, 2010
Applicants:

Stephen Kempf, Brooklyn, NY (US);

Albert Mangels, Rockaway Park, NY (US);

Subramanya Naglapura, Princeton, NJ (US);

Sean Diamond, Dover Plains, NY (US);

Brian Moulder, Orange, CT (US);

Brian Straiton, Brookfield, CT (US);

Inventors:

Stephen Kempf, Brooklyn, NY (US);

Albert Mangels, Rockaway Park, NY (US);

Subramanya Naglapura, Princeton, NJ (US);

Sean Diamond, Dover Plains, NY (US);

Brian Moulder, Orange, CT (US);

Brian Straiton, Brookfield, CT (US);

Assignee:

Lee Spring Company LLC, Brooklyn, NY (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16F 1/04 (2006.01); B29C 45/44 (2006.01); F16F 1/02 (2006.01); B29L 31/00 (2006.01);
U.S. Cl.
CPC ...
B29C 45/44 (2013.01); F16F 1/021 (2013.01); F16F 1/042 (2013.01); F16F 1/047 (2013.01); B29L 2031/7742 (2013.01);
Abstract

This invention provides a helical spring formed of plastic material, comprising a pair of end coils situated at respective ends of said helical spring; at least one full pitch active coil between said pair of end coils; a pair of transition coils, each transition coil interconnecting an end of a respective end coil to an end of a respective proximate full pitch active coil, and having a varying pitch.


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