Abstract: A door-lock system includes a door latch adapted to be coupled to one of a door or to a structure defining the passageway through which the door restricts passage. The door-lock system may further include a latch lock adapted to be coupled to the other of the door or to the structure defining the passageway to selectively mate with the door latch to block the door from opening.

Abstract: An electronic locking apparatus for an entryway, having a linkage coupled to an entryway frame case, and a solenoid associated with the case, the solenoid is configured to selectively engage with the linkage.

Abstract: A tensioning assembly for winding a winding system includes a support bracket connectable to a fixed frame, a collar portion removably mountable onto a shaft of the winding system proximate to the support bracket, a ratchet wheel, and a pawl component. The collar portion is removably secured onto the shaft. The ratchet wheel is securely mounted onto the collar portion and is rotatable therewith. The ratchet wheel has a plurality of teeth and a plurality of corresponding recesses. The pawl component is operatively mountable on the support bracket and is moveable with respect to said support bracket, the pawl component having an extremity being positioned, shaped and sized with respect to at least one recess of the ratchet wheel for allowing rotation of the shaft along a winding direction, and for blocking rotation of the shaft along an unwinding direction.

Abstract: A tensioning assembly for winding a winding system includes a support bracket connectable to a fixed frame, a collar portion removably mountable onto a shaft of the winding system proximate to the support bracket, a ratchet wheel, and a pawl component. The collar portion is removably secured onto the shaft. The ratchet wheel is securely mounted onto the collar portion and is rotatable therewith. The ratchet wheel has a plurality of teeth and a plurality of corresponding recesses. The pawl component is operatively mountable on the support bracket and is moveable with respect to said support bracket, the pawl component having an extremity being positioned, shaped and sized with respect to at least one recess of the ratchet wheel for allowing rotation of the shaft along a winding direction, and for blocking rotation of the shaft along an unwinding direction.

Abstract: A plug (1) for use with a counterbalancing system (3) of a cable-operated door (5).

Abstract: A ratchet system for winding a rolling door assembly. The ratchet system includes a support bracket, a cam, and a biasing device. The support bracket is preferably mounted onto a fixed structure of the rolling door assembly. The cam is pivotally mounted about the support bracket and positioned adjacent to a portion of an overhead shaft of the assembly. The cam is shaped and sized to cooperate with this portion of the overhead shaft between a first position, where the cam allows rotation of the overhead shaft along a first direction, and a second position, where the cam has a surface engaged with the overhead shaft and where further rotation of the overhead shaft along a second direction, opposite to the first direction, is blocked by the cam. The biasing device is used for urging the surface of the cam onto the overhead shaft. The ratchet system is particularly useful for adjustably controlling the rotation of the overhead shaft of the rolling door assembly during the winding thereof.

Abstract: A drum which receives a cable of a counterbalancing system of a cable-operated door, the cable having an extremity provided with a stopper. The drum includes a substantially cylindrical body, a cable entry groove and a securing slot. The drum further includes an embossment configured about the drum and its components in order to prevent that the cable from coming off its normal position in the drum when there is a “slack” condition in the cable.

Abstract: A garage door cable drum is disclosed for a sectional overhead door of a type having a substantially non-linear lift-weight to lift-height characteristic. The drum includes a generally spiral cable groove having a variable minor radius. The groove minor radius at any intermediate point along the groove is sized to provide a lift-cable moment arm that yields a corresponding cable lift force that is slightly less than an instantaneous lift weight of the garage door at any intermediate door elevation.

Abstract: A plug for operatively connecting an extremity of a torsion spring to another corresponding component of a counterbalancing assembly. The plug includes a collar and at least one connecting flange. The collar defines a longitudinal axis, and includes first and second opposite ends, the collar being shaped and sized for removably mounting onto the extremity of the torsion spring. Each connecting flange is provided on the first end of the collar for connecting the plug onto the corresponding component of the counterbalancing assembly.

Abstract: A ratchet system for winding a rolling door assembly. The ratchet system includes a support bracket, a cam, and a biasing device. The support bracket is preferably mounted onto a fixed structure of the rolling door assembly. The cam is pivotally mounted about the support bracket and positioned adjacent to a portion of an overhead shaft of the assembly. The cam is shaped and sized to cooperate with this portion of the overhead shaft between a first position, where the cam allows rotation of the overhead shaft along a first direction, and a second position, where the cam has a surface engaged with the overhead shaft and where further rotation of the overhead shaft along a second direction, opposite to the first direction, is blocked by the cam. The biasing device is used for urging the surface of the cam onto the overhead shaft. The ratchet system is particularly useful for adjustably controlling the rotation of the overhead shaft of the rolling door assembly during the winding thereof.

Abstract: A plug for operatively connecting a torsion spring onto a corresponding component of a counterbalancing mechanism of a door assembly. The plug includes a connecting portion for removably connecting the plug onto the corresponding component, a substantially cylindrical collar insertable into an end portion of the torsion spring, an anchoring portion disposed on a bottom section of the collar for cooperating with a coil of the end portion of the torsion spring so as to pivotally anchor the collar onto the end portion of the torsion spring, and a clip projecting from a top section of the collar, and being disposed at a location on the collar substantially diametrically opposite from where the anchoring portion is disposed on the bottom section of the collar.

Abstract: A plug for operatively connecting a torsion spring onto a corresponding component of a counterbalancing mechanism of a door assembly. The plug includes a connecting portion for removably connecting the plug onto the corresponding component, a substantially cylindrical collar insertable into an end portion of the torsion spring, an anchoring portion disposed on a bottom section of the collar for cooperating with a coil of the end portion of the torsion spring so as to pivotally anchor the collar onto the end portion of the torsion spring, and a clip projecting from a top section of the collar, and being disposed at a location on the collar substantially diametrically opposite from where the anchoring portion is disposed on the bottom section of the collar.

Abstract: A ratchet-like system for winding a rolling door assembly. The ratchet-like system includes a support bracket, a cam, and a biasing device. The support bracket is preferably mounted onto a fixed structure of the rolling door assembly. The cam is pivotally mounted about the support bracket and positioned adjacent to a portion of an overhead shaft of the assembly. The cam is shaped and sized to cooperate with this portion of the overhead shaft between a first position, where the cam allows rotation of the overhead shaft along a first direction, and a second position, where the cam has a surface engaged with the overhead shaft and where further rotation of the overhead shaft along a second direction, opposite to the first direction, is blocked by the cam. The biasing device is used for urging the surface of the cam onto the overhead shaft. The ratchet-like system is particularly useful for adjustably controlling the rotation of the overhead shaft of the rolling door assembly during the winding thereof.