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:
Mar. 05, 2019

Filed:

Apr. 13, 2017
Applicant:

Weber Knapp Company, Jamestown, NY (US);

Inventor:

Daniel M. Graham, Ashville, NY (US);

Assignee:

Weber Knapp Company, Jamestown, NY (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E05F 1/08 (2006.01); E05F 1/12 (2006.01); E05D 3/12 (2006.01); E05D 11/00 (2006.01); E05F 1/10 (2006.01);
U.S. Cl.
CPC ...
E05F 1/1261 (2013.01); E05D 3/12 (2013.01); E05D 11/0054 (2013.01); E05F 1/1058 (2013.01); E05Y 2900/602 (2013.01);
Abstract

A counterbalance assembly including a housing, a pivot nose, and a spring pack. The housing including a front housing wall having a first housing edge and a second housing edge opposite the first housing edge, a first housing side wall projecting from the first housing edge and having a first retaining slot, and a second housing side wall oppositely disposed relative to the first housing side wall, projecting from the second housing edge and having second retaining slot in registered alignment with the first retaining slot. The pivot nose including a front pivot nose wall having a first pivot nose edge and a second pivot nose edge opposite the first pivot nose edge, a first pivot nose side wall projecting from the first pivot nose edge and having a first pivot nose through hole, and a second pivot nose side wall oppositely disposed relative to the first pivot nose side wall, projecting from the second pivot nose edge and having a second pivot nose through hole, the first and second pivot nose through holes are in registered alignment with the first and second retaining slot. The spring pack disposed within a volume formed by the housing and including a first end engaged with the housing, a second end engaged with the pivot nose, and an energy storage device arranged between the first and second ends.


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