Spring balance assembly

Spring balance assembly

Spring coupler for block and tackle window balance system

Spring force compensator for sash balances

Spring hinge

Spring loaded block and tackle window sash balance assembly

Spring loaded, adjustable walking door hinge

Spring mounting arrangement for a sash window counterbalance...

Spring mounting arrangement for a sash window counterbalance...

Spring mounting for sash frame tensioning arrangements

Spring mounting for sash window tensioning arrangements

Spring mounting for sash window tensioning arrangements

Spring mounting for sash window tensioning arrangements

Spring mounting for sash window tensioning arrangements

Spring sash counterbalance

Spring system for double-hung window sash

Spring-like hinge

Springless self-latching hinge having a resilient hinge member

Stabilizing hinge for furniture with glass doors

Stand-off mounting system for assist straps