Window balance assembly
AssigneeCaldwell Manufacturing Company North America, LLC
InventorsMark R. Baker, Wilbur James Kellum, III
Life of this patent
Estimating the term…
Abstract
A window balance assembly may include a carrier, a spring element, and a mounting bracket. The spring element may include first and second portions. The first portion may be coupled to the carrier. The mounting bracket may engage the second portion of the spring element and may selectively engage the carrier. The mounting bracket may include a first mounting surface disposed at a non-perpendicular angle relative to an exterior surface of carrier when the window balance assembly is in an uninstalled configuration. The first mounting surface may be substantially parallel to the exterior surface of the carrier when the window balance assembly is in an installed configuration and the mounting bracket is disengaged from the carrier.
Claims34
A window balance assembly comprising:
- a carrier;
- a spring element having first and second portions, the first portion being coupled to the carrier;
- and
- a mounting bracket engaging the second portion of the spring element,
- wherein the mounting bracket is releasably mounted to the carrier, and either or both of a portion of the mounting bracket and a portion of the carrier deform in response to application of a force to disengage the mounting bracket from the carrier.
A window balance assembly comprising:
- a carrier;
- a spring element having first and second portions, the first portion being coupled to the carrier;
- and
- a mounting bracket including a spring engagement feature engaging the second portion of the spring element,
- wherein the mounting bracket is coupled to the carrier by a stress riser, the stress riser failing in response to application of a force to disengage the mounting bracket from the carrier.
A window balance assembly for installation in a window assembly, the window balance assembly being configurable between an uninstalled configuration and an installed configuration and including a carrier, a spring element and a mounting bracket, the spring element having first and second portions, the first portion being coupled to the carrier, the second portion being coupled to the mounting bracket, the mounting bracket being coupled to the carrier by a stress riser in the uninstalled configuration, the stress riser failing in response to application of a force to disengage the mounting bracket from the carrier.
Dependencies are inferred from the claim text.