Amesbury Group, Inc.

Wilbur James Kellum, Iii

Tyler Welbig

Travis Steen

Chad Swier

A balance shoe for a block and tackle window balance system includes an enlarged head portion housing a locking system configured to receive at least a portion of a pivot bar and releasably engage a jamb track. An elongate tail portion configured to couple at least partially within a U-shaped channel of the window balance system. A front face, the front face of the elongate tail portion being adjacent to a base wall of the U-shaped channel when the elongate tail portion is coupled therein. The front face including an elongate channel configured to allow passage of the pivot bar from the elongate tail portion towards the locking system. The balance shoe also including at least one protrusion extending from the front face of the elongate tail portion and disposed at least partially within the elongate channel.

Window balance shoes for a pivotable window

A sash guide for a hung window includes a plate having a first end and an opposite second end defining a longitudinal axis. The first end configured to mount to a side rail of a window sash and the second end having an outside surface spaced from the side rail in a transverse direction. The transverse direction being substantially orthogonal to the longitudinal axis. A cam block is disposed proximate the second end and between the plate and the side rail. An adjustment fastener is coupled to the cam block and configured to slide the cam block along the longitudinal axis such that the outside surface of the second end is adjustable along the transverse direction and in relation to the side rail.

Sash guide

An inverted constant force window balance system has a carrier assembly including a housing with a first and a second housing wall, a coil spring with a free end, and a shoe assembly slidably coupled to the housing. The shoe assembly includes a first and a second shoe face. The housing slides between a first and a second position relative to the shoe assembly. When in the first position, the first and second housing walls are substantially non-coplanar with the first shoe face, and when in the second position, the first housing wall is substantially coplanar with the first shoe face and substantially non-coplanar with the second shoe face. The shoe assembly receives a pivot bar from a window sash and extends a brake upon rotation thereof. The balance system also includes a mounting bracket releasably coupled to the housing and coupled to the free end of the coil spring.

Inverted constant force window balance having slidable coil housing

Corner key

An inverted constant force window balance system includes a carrier assembly and a mounting bracket. The carrier assembly includes a housing, a coil spring disposed within the housing, and a shoe assembly coupled to the housing. The shoe assembly is configured to receive a pivot bar from a window sash and extend at least one brake upon rotation of the pivot bar. The mounting bracket is releasably coupled to the housing opposite the shoe assembly and is coupled to the free end of the coil spring. At least a portion of the mounting bracket is configured to slideably move in relation to the free end of the coil spring between at least two positions. When at least a portion of the mounting bracket moves between the at least two positions, the mounting bracket disengages from the housing and releases the mounting bracket from the carrier assembly.

Inverted constant force window balance

A corner key includes a heel and at least one leg extending from the heel defining a longitudinal axis. A nose is disposed along the longitudinal axis. The nose includes a first wedge area and an opposite second wedge area. The corner key further includes a bridge connecting the nose to the at least one leg. Upon insertion into a frame member, the nose substantially rotates to engage both the first wedge area and the second wedge area within the frame member and wedge the nose therein.

Corner key for extruded windows and doors

A window balance system includes a mounting bracket configured to be secured to a window jamb, a shoe body and a coil spring movably coupling the mounting bracket to the shoe body. The window balance system also includes an engagement member extending from at least one of the mounting bracket and the shoe body, wherein the engagement member includes at least one resilient arm having a pawl extending therefrom. The window balance system further includes a receiving member defined in at least the other one of the mounting bracket and the shoe body, wherein the receiving member includes at least one rack having at least one tooth extending therefrom such that the pawl is engageable with the rack.

Constant force window balance engagement system

A window balance has a channel with two ends. A top guide is disposed at one end of the channel and a bottom guide is disposed at the other end of the channel. One end of a spring is fixed within the channel. A movable block is secured to the other end of the spring. Rollers are rotatably mounted in the movable block. A single roller is rotatably mounted to a fixed block which is secured to the channel. A cord exit roller is disposed proximate the bottom guide. The first end of a cord is fixed relative to the channel. The middle portion of the cord is routed about the rollers mounted in the movable block and mounted to the fixed block. A second end of the cord is routed around the cord exit roller and is attachable to a window jamb.

Window balance having four-loop cord configuration

A carrier for a window sash has a balance connecting portion configured to be connected to a window balance. A vertical rail system is configured to slidingly engage a bracket of the window sash.

Carrier and bracket assembly for window balance

Top guide for a window balance

A corner key includes a heel and at least one leg extending along an axis from the heel. The at least one leg includes a retention element and a lifting cam such that upon insertion into a frame member the lifting cam induces a bending stress in the retention element.

Growing community of inventors

Garretson, SD, United States of America

Wilbur James Kellum, Iii