Patent application number | Description | Published |
20090013510 | Buckle device - A buckle device includes a female buckle member having a chamber for pivotally attaching two pawls with pivot pins, the pawls each has a depression and a projection formed in an inner surface, a male buckle member includes a tong for engaging into the chamber of the female buckle member and for engaging with the pawls, the tong includes two side surfaces each having a protrusion and a void for engaging into the depressions and the projections of the pawls and for increasing the contact area between the tong and the pawls and for solidly anchoring the tong to the female buckle member, and for sustaining a great pulling or towing force and for attaching to the facilities that require to sustain a great pulling or towing force, such as parachutes. | 01-15-2009 |
20090188753 | Rope climbing device - A rope climbing device includes a housing having a compartment for slidably receiving a rope, a lever pivotally coupled to the housing with a spindle and having one or more teeth for engaging with the rope and for selectively securing the housing to the rope, and a foot-hold attached to the lever for engaging with the foot of the user and for forcing the teeth of the lever to selectively engage with the rope, and a pressing device may selectively engage with the rope when the tooth of the lever is disengaged from the rope for preventing the housing of the rope climbing device from sliding downwardly relative to or along the rope inadvertently. | 07-30-2009 |
20090208274 | Swivel coupling device - A swivel coupling device includes a base member having a stem extended from a carrier, and a channel formed in an outer peripheral portion of the stem, and a swivel member includes a passage formed in a support member, and an inner peripheral groove formed in the support member and communicating with the passage of the support member for forming an endless pathway between the support member of the swivel member and the stem of the base member when the stem is engaged into the passage of the support member and for receiving bearing members which prevent the support member of the swivel member and the stem of the base member from being disengaged from each other. | 08-20-2009 |
20100299893 | Double locking snap hook device - A snap hook device includes a hook member having a hook throat opening formed by a hook portion and a shank, a hinged gate pivotally coupled to the shank and biased to openably close the hook throat opening, a latch member pivotally coupled to the shank with a pivot axle and biased to openably close a compartment of the hook member, the latch member includes an anchor member for engaging with a lock member of the hinged gate and for locking the hinged gate to the hook member, and to prevent the hinged gate lo from being depressed to open the hook throat opening before the anchor member of the latch member is disengaged from the hinged gate. | 12-02-2010 |
20100325848 | Snap hook with rotatable lock - A snap hook includes a hook member having a gap formed by an attaching end and a receiving end, a pivotal gate pivotally secured to the hook member and having a channel for receiving the receiving end of the hook member, a locking member is rotatably engaged onto the pivotal gate and includes a passage for aligning with the channel of the pivotal gate and the receiving end of the hook member and for allowing the pivotal gate and the locking member to be rotated relative to the hook member from the locking position to the unlocking position, and a spring member biases and rotates the locking member relative to the pivotal gate to stably retain the receiving end of the hook member in the channel of the pivotal gate. | 12-30-2010 |
20110024542 | Rope breaking device - A rope braking device includes a housing having a chamber and an orifice communicative with each other, an eyelet engaged in the orifice of the housing and having a bore for engaging with a rope, a pulley having a hub mounted on a shaft, a follower gear mounted on the shaft and coupled to the hub, an internal gear rotatably mounted on the shaft, a number of pinions engaged with the follower gear and the inner teeth of the internal gear for resisting the rotational movement of the pulley and the rope relative to the housing, and for allowing the rope braking device to be easily carried with the user and to be easily operated by the user. | 02-03-2011 |
20110041301 | Strap tensioner or tightener - A strap tightener includes a ratchet wheel rotatably attached to a supporting member with an axle, a tension lever rotatably attached to the supporting member with a shaft and having an actuating end for engaging with the ratchet teeth of the ratchet wheel, a strap engaged between the actuating end of the tension lever and the ratchet wheel, and a spring member for biasing the actuating end of the tension lever to engage with the strap and to clamp the strap between the actuating end of the tension lever and the ratchet wheel, the actuating end of the tension lever is forced to engage with the grooves between the ratchet teeth for generating a click sound when the strap has not been tightened or tensioned. | 02-24-2011 |
20110155505 | Connector device to prevent worker from falling - A connector device for attaching to a rail of a scaffolding includes an attachment member attached to a lever for coupling to a worker, two gripping members slidably attached onto the lever for adjustably engaging with the rails of different width, and two brackets slidably attached to the gripping members and each having a jaw member for selectively engaging with the lever and for anchoring the gripping member to the lever at the selected position, two barrels are slidably attached onto the lever for mounting the gripping member and each include a slot for receiving the jaw member which is engageable with the ratchet teeth of the lever to anchor the gripping member to the lever at the selected position. | 06-30-2011 |