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.

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.

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.

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.

A movable barrier operator release mechanism includes an operator chassis having a first side. A shaft extending in a first direction from the first side of the chassis. A brake assembly coupled to the chassis and the first shaft extends into the brake assembly. The brake assembly includes a lever, mounted to a mounting plate of the brake assembly on end and freely movable at the other end. A cable attached to the lever that when pulled pivots the lever about its mounting point. When moved, the lever disengages the brake assembly allowing for free movement of the movable barrier.

The invention relates to a vacuum chamber packaging machine with spring fracture detection. A first electrical line can be provided connecting springs to a controller, where interruption of the line due to a fractured spring may be detected by the controller via an applied voltage, so that no safety deficiency arises.

The invention relates to a vacuum chamber packaging machine with spring fracture detection. A first electrical line can be provided connecting springs to a controller, where interruption of the line due to a fractured spring may be detected by the controller via an applied voltage, so that no safety deficiency arises.

Device for opening cabinet door of cabinet body. Cabinet door is attached to cabinet body by self-closing hinges. Cabinet door is held in closed position at a small distance from the front of cabinet body. In order to allow cabinet door to be opened without gripping elements, without hindering the self-closing of the hinges, there is a unit having ejection piston with a locking apparatus and tension rod in cabinet body. Ejection piston is supported in the unit by compression spring, and tension rod is supported in the unit by tension spring. Ejection piston and tension rod are coupled to each other by a control apparatus having a freewheel, and thus by tapping on cabinet door the opening of cabinet door can be initiated and cabinet door can be brought into an intermediate position. In the intermediate position, cabinet door can be grasped by a hand and opened further.

Device for opening cabinet door of cabinet body. Cabinet door is attached to cabinet body by self-closing hinges. Cabinet door is held in closed position at a small distance from the front of cabinet body. In order to allow cabinet door to be opened without gripping elements, without hindering the self-closing of the hinges, there is a unit having ejection piston with a locking apparatus and tension rod in cabinet body. Ejection piston is supported in the unit by compression spring, and tension rod is supported in the unit by tension spring. Ejection piston and tension rod are coupled to each other by a control apparatus having a freewheel, and thus by tapping on cabinet door the opening of cabinet door can be initiated and cabinet door can be brought into an intermediate position. In the intermediate position, cabinet door can be grasped by a hand and opened further.

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.