Class / Patent application number | Description | Number of patent applications / Date published |
254011000 | FLOOR JACK TYPE | 7 |
20130248784 | Accessory Kit Apparatus and Method For One or More Heavy-Duty Floor Jack - An accessory kit apparatus for use with a heavy-duty floor jack includes at least one extension tube with a first end configured to engage a matching mounting area of a lowering member of the floor jack and a second end. The accessory kit also includes a separable top support member having a mounting portion extending from a flat base, the mounting portion configured to engage the second end of the extension tube. The separable top support member also has a channel member and a hinge, whereby the channel member is hinged to an edge of the flat base, the channel member having rims defining a channel. The flat base supports the flat base is configured to support the channel member when the jack is in use. | 09-26-2013 |
254013000 | Screw | 1 |
20090194749 | Wood Floor Gap Jack - A flooring installation tool for closing gaps between wooden floorboards by straightening bowed floorboards or bending straight floorboards installed on a sub floor. The main components are: a base, a threaded rod, a main nut, a pushing foot, a push plate; and a pull plate. The tool base is affixed to or abuts a building structure with the pushing foot abutting a bowed floorboard to be installed. The main nut is turned; linear force is exerted closing gaps between the floorboard being installed and a previously installed floorboard. The push plate when placed between the pushing foot and floorboard allows fastening of floorboard in-line with the exerted linear force. To install the last floorboard the pull plate is placed under the base hooking on the edge of the floorboard exerting linear force between the wall and last floorboard closing gaps between floorboards. The pushing foot swivels to self align. | 08-06-2009 |
254014000 | Step-by-step traveling member | 4 |
20080197328 | Machine and Method for Installing Curved Hardwood Flooring - The present invention relates to the art of installing hardwood flooring while maintaining the wood grain in the direction of any bends required to conform to a curved structure. More particularly, the invention pertains to a machine and method for installing curved hardwood flooring using three steps. First step is to establish the desired floor boundary and anchor a plurality of pressure units in place at appropriate intervals to accurately represent the desired shape of the curved hardwood floor to be installed. Second step is to make appropriate adjustments to the pressure units and position the hardwood flooring in the machine; Third step is to activate the pressure units to bend the flooring into the desired contour; hold securely; make adjustments, if necessary and nail the hardwood flooring to the sub-floor. Then repeat steps 2 and 3 until the hardwood floor is completed. | 08-21-2008 |
20090101876 | Opening/Closing Device for Manhole Cover - An opening and closing apparatus of a manhole cover has a simple structure and by which opening and closing operation of a cover can be performed safely by a worker alone. An opening and closing apparatus of a manhole cover has such a configuration that the manhole cover is openably and closably coupled to an opening portion of a supporting frame via a rotational joining portion. A hydraulic jack in which a plunger pump is driven by a manual lever raises a ram and the ram lowers due to releasing of an oil returning valve attached on the supporting frame near the rotational joining portion such that the hydraulic jack is rotatable at a lower end portion thereof, and the hydraulic jack and an engagement member fixed attachably to and detachably from the manhole cover are coupled to each other by a pulling member. | 04-23-2009 |
20160107868 | Locking lift arms safety mechanism for a lifting device-power unit - A power unit includes a frame having a handle with a control knob, and a pair of pivotal lift arms elevated by pushing the rearward ends by a push bar of a hydraulic cylinder. The cylinder has a control valve attached to a control shaft extending from the control knob. A pair of guide rail are attached to the bottom of the frame; and a pair of rack bars are slidably mounted on each guide rail, and has a forward end pivotally linked to the push bar. A pair of dogs are positioned above the rack bar, each having a rearward end pivotally attached to the frame and a forward end engaging a tooth of the rack bar. The forward end of each dog engages the rack bar as the lift arms are elevated; and in the event of a hydraulic failure, the dogs lock the lift arms in the elevated position. A release includes a cam tube having a V slotted opening in the underside thereof. A swing plate has a cam follower stud slidably engaged within the V slotted opening. The swing plate includes linkage that is actuated by rotation of the control knob. An initial rotation of the control knob automatically rotates the cam tube to release the dogs, and further rotation opens the valve to lower the lift arms. | 04-21-2016 |
20160107869 | Locking lift arms safety mechanism for a hydraulic floor jack - A floor jack includes a frame having a handle with a control knob, and a pair of pivotal lift arms elevated by pushing the rearward ends by a push bar of a hydraulic cylinder. The cylinder has a control valve attached to a control shaft extending from the control knob. A pair of guide rail are attached to the bottom of the frame; and a pair of rack bars are slidably mounted on each guide rail, and has a forward end pivotally attached to the push bar. A pair of dogs are positioned above the rack bar, each having a rearward end pivotally attached to the frame and a forward for engaging a tooth of the rack bar. The forward end of the dogs engage the rack bar as the lift arms are elevated; and in the event of a hydraulic failure, the dogs lock the lift arms in the elevated position. A release includes a cam tube having a V slotted opening in the underside thereof. A swing plate has a cam follower stud slidably engaged within the V slotted opening. The swing plate includes linkage that is actuated by rotation of the control knob. An initial rotation of the control knob automatically rotates the cam tube to release the dogs, and further rotation opens the valve to lower the lift arms. | 04-21-2016 |
254017000 | Single throw lever | 1 |
20150345156 | CARPENTRY TOOL - A carpentry tool for pushing deck, flooring or other boards toward one another on a joist or underlying substructure. The tool can be operated with one hand, leaving the other hand free for installation of a fastener. The tool can leave an area adjacent the joist and board exposed so that a fastener can be installed in the board and joist in that area. The tool can include a pusher cam rotatably joined with a base, and fixedly joined with a lever. A joist cam and joist blade can be joined with the base, disposed opposite one another across a variable width joist recess. The pusher cam and joist cam can be mechanically coupled to the base so that rotation of the pusher cam urges rotation of the joist cam, thereby causing the joist cam to dynamically grip the joist and prevent the tool from rocking and/or moving away from the pushed board. | 12-03-2015 |