| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 254105000 | STEP-BY-STEP TRAVELING BAR | 10 |
| 20090078919 | Support device - A support device comprises a base including a receiving portion disposed on the top of one side thereof for receiving a post which allows to hold a heavy object, a stopping mechanism defined between the post and the base and including teeth arranged on one side of the post, the base also including a rotatable engaging member affixed thereon for correspondingly engaging with the teeth, wherein the base further includes a pedal fitted in another side thereof so as to move vertically. Besides, between the pedal and the post is defined with a transmitting mechanism including a rotatable wheel pivotally disposed on the base and having a chain, one end of which is coupled to the bottom of the post, and another end of which is connected to the pedal, mounted thereon, such that while the pedal moves vertically, the post is urged to move vertically as well, thereby obtaining a quick and safe operation. | 03-26-2009 |
| 20120032124 | APPARATUSES AND METHODS FOR AN IMPROVED VEHICLE JACK - Various embodiments of a vehicle jack include a base, an upright support mounted adjacent to and extending upwardly from the base, a toothed rack, a toothed bar pin, and a release handle. The toothed rack has a first end and a second end and defines a plurality of ratchet troughs therebetween, and the toothed rack is mounted adjacent the upright support. The ratchet assembly is adapted to move along a path defined by the upright support, and the toothed bar pin, which is mounted adjacent the ratchet assembly, is adapted to selectively engage a portion of the toothed rack adjacent one of the plurality of ratchet troughs as the ratchet assembly moves along the path. The release handle is mounted adjacent the second end of the toothed rack, and the release handle is adapted to selectively disengage the toothed bar pin from one of the plurality of ratchet troughs. | 02-09-2012 |
| 20130146825 | JACKING POLE - A jacking pole apparatus is disclosed. A jacking pole may include two tubular members, slidably engaged with one another in such a manner that they may extend or expand. A jacking pole may engage two surfaces or objects and extend therebetween in order to provide support. Further, a jacking pole may vertically displace an object or surface. A jacking pole utilizes locking mechanisms to remain in certain positions and provide continuous support for surface and objects. The locking mechanisms may also be utilized during vertical displacement in order to facilitate such motion. | 06-13-2013 |
| 20140319437 | JACK APPARATUS - There is provided a jack apparatus having a base plate with a top surface, a bottom surface and a peripheral edge, the top surface having an opening, a bar extending from the top surface of the base plate, and a travelling member mounted to the bar. The travelling member has an actuator that moves the travelling member along the bar relative to the base plate and a lifting bracket mounted at an end of the travelling member, the lifting bracket having a top surface and a bottom surface, and the lifting bracket being sized to fit within the opening when the travelling member is adjacent to the base plate such that the lifting bracket engages the base plate. | 10-30-2014 |
| 254106000 | Clutch actuated | 1 |
| 20110233491 | CLUTCHABLE PRY BAR - A clutchable pry bar includes a bar member with a fitting connector; a rack member fitted with the fitting connector of the bar member, including two slots adjacent to a closed end of the rack member, and including two through holes proximate to an opened end of the rack member; a ratchet shaft inserted to the through hole of the rack member, and including a first end portion disposed on one end thereof; at least one ratchet member fitted to the ratchet shaft, a plate member movably fixed to the slots of the rack member, a returning spring between pegs of the plate member and a central extension of the bar member; a stem member to be retained with the ratchet shaft after the stem member is inserted to a radial bore of the ratchet shaft. | 09-29-2011 |
| 254108000 | Pawl actuated | 5 |
| 20090173922 | APPARATUS FOR LIFTING OR PULLING A LOAD - An apparatus for lifting or pulling a load, characterized by a link chain and co-operating therewith an operating organ for moving the link chain and for the link chain to pass through, wherein the links of the link chain and the operating organ possess mutually engaging bearing faces, and wherein the operating organ possesses a first bearing face and a second bearing face and in addition comprises a hydraulic cylinder for adjusting the distance between the first bearing face and the second bearing face. | 07-09-2009 |
| 20130256610 | VEHICLE SUPPORT ASSEMBLY AND METHOD OF USING SAME - A support assembly includes a frame, a first ratchet, a second ratchet, a lift structure, a bridge member, and a saddle. Each of the first and second ratchets includes a linear rack attached to first and second side members of the frame, and a slide structure slideably mounted with one of the side members. Each slide structure includes a pawl that successively engages with teeth in the linear rack as the lift structure of the support assembly is extended upwardly and as the slide structure slides along the linear rack. The support assembly may be a jack stand that is co-located with a vehicle jack. A head of the vehicle jack pushes against a bottom surface of the bridge member of the jack stand to cause the lift structure to extend upwardly and the ratchet systems to engage in a locked position to hold a vehicle in a raised position. | 10-03-2013 |
| 20160194185 | Ratcheting, Self-Aligning Load-Support Device | 07-07-2016 |
| 254109000 | Multiple driving pawls | 2 |
| 254110000 | Reversing | 2 |
| 20100123109 | Extension rod unit - An extension rod unit includes an outer tube with an inner tube retractably inserted thereto and a ratchet unit is connected to the open top of the outer tube. The ratchet unit includes a connection member and a lever. The connection member includes two side panels and each have a first lug extending therefrom. The lever has two second lugs and the shaft extends through the first and second lugs so as to pivotably connect the lever to the connection member. Two ratchet gears are located between two sets of first and second lugs. A slot is defined axially through the shaft. A driving member has a first end fixed to the fixing part and a second of the driving member extends through the slot of the shaft and is located beyond the outer tube. By pivoting the lever, the inner tube can be moved relative to the outer tube. | 05-20-2010 |
| 20130299756 | RATCHET PAWL SYSTEM, DEVICE AND METHOD - A dual ratchet pawl jacking system, device, and method are presented for raising and/or lowering a platform bearing carriage along a vertical support. The ratchet pawls alternate supporting the weight of the carriage by engaging against a series of lugs on the vertical support. A first pawl is attached to the main frame of the carriage, and a second pawl is attached to a sub-carriage assembly that slides upward and downward within the carriage frame. A hydraulic jack applies a force upon the sub-carriage, causing the sub-carriage to move within the frame. The weight of the carriage is alternately borne by each pawl as the other pawl is relocated to a new lug. A pair of triggers is used to retract the first pawl and second pawl from the support. The triggers may be enabled to facilitate lowering the carriage, or disabled to facilitate raising the carriage. | 11-14-2013 |
