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:
Jul. 23, 1991
Filed:
Apr. 27, 1990
Ivan L Stark, Ada, MI (US);
Newell Manufacturing Company, Lowell, MI (US);
Abstract
A jamb liner, or facing member, for movably mounting windows along their side edges in channels or runs, in which a concealed elongated chamber is provided for a coil spring or the like used as part of the balance or positioner mechanism by which the window is supported in different positions along the length of the jamb as it is opened and closed during use. Preferably, such concealed chamber includes an elongated wall which projects outwardly from the jamb liner and has an arcuate or other angularly-configured cross-section, such that it presents a generally closed appearance when viewed from a position near the window. Such chamber-concealing wall defines an elongated opening through which the balance device may communicate for access by the window sash, for supporting the latter and positioning it. In addition, a novel balance apparatus is disclosed which comprises a friction shoe configured to slidably move within the aforementioned chamber and frictionally engage a rib extending therewithin, as a function of and in response to the applied weight of the sash.