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:
Nov. 22, 2011
Filed:
Feb. 25, 2009
Device and method for improving the installation of pre-tensioned spiral balances in window balances
Curtis Levermore, Fairport, NY (US);
Douglas Zinter, Rochester, NY (US);
Curtis Levermore, Fairport, NY (US);
Douglas Zinter, Rochester, NY (US);
Caldwell Manufacturing Company North America LLC, Rochester, NY (US);
Abstract
The present device is an extender for pretension spiral rod window balances. The spiral rod extender is attached to the end of the spiral rod by the window or balance manufacturer. At the window manufacturer, the sash is installed into the window frame and the balance is inserted into one of the jamb channels. A hook tool, having a hooking element at one end, is used to grab onto a hole in the end of the spiral rod to pull it a sufficient amount out of the containment tube. The hook tool manipulates the spiral rod so that a sash hook mounted on the balance engages a ledge at the end of the sash, thereby securing the balance to the sash. The spiral rod extender is then removed from the spiral rod and may be reused by the balance manufacturer or discarded as desired.