Adjustable tension gate Z-bracket

Animal door assembly

Assist mechanism for lifting and closing large enclosures

Balancing device for automobile deck lid

Balancing mechanism for manhole covers

Cam biased pivoting door

Ceiling access door assembly

Ceiling access panel

Closure hinge mechanism

Compact window operator

Counterbalanced door assembly with reduced initial closing force

Counterbalanced window operator

Counterbalanced window operators

Counterbalanced window operators

Counterbalancing hinge for range oven doors or the like

Counterbalancing mechanism

Counterweight door structure

Device for closing road wells in vehicle and pedestrian areas

Device for counterbalancing a swivelable body part on a motor ve

Device for damping closing movement of lid