Single Throw Lever Patents (Class 254/120)
  • Publication number: 20110091303
    Abstract: sheet material lifts including an elongate body extending along a longitudinal axis between a first end and a second end, a foot extending transverse the longitudinal axis from the second end of the elongate body, a support element disposed on the foot distal the elongate body, a base defining a fulcrum coupled to the foot, and an arm extending transverse the longitudinal axis from the elongate body at a position intermediate the first end and the second end. In some examples, the arm includes a sleeve, and a shaft slidingly mounted within the sleeve, the shaft being configured to slide along a path between a retracted position proximate the elongate body and an extended position distal the elongate body.
    Type: Application
    Filed: June 29, 2010
    Publication date: April 21, 2011
    Inventor: William Matthews
  • Publication number: 20110073817
    Abstract: A wheel ornament installation tool includes a supporting portion and a rotatable portion rotatably coupled to the supporting portion. The rotatable portion is configured to apply a force against a wheel ornament during rotation of the rotatable portion. The supporting portion is configured to engage a stationary object to support the rotatable portion during application of the force against the wheel ornament.
    Type: Application
    Filed: May 4, 2010
    Publication date: March 31, 2011
    Inventor: David P. Branik
  • Patent number: 7810789
    Abstract: The present invention comprises a generally rectangular base with two longitudinal containment lips and two semi-arcuate lips on the front and rear for the containment and display of motorcycles or similar vehicles. The apparatus is uniquely suited to hold and display motorcycles or similar vehicles in an aesthetically pleasing manner while also containing and fluid leaks or spillage that may occur during the storage or display. A pair of adjustable stands holding the vehicle. Each stand can be selectively raised and fixed in a vertical position and adjusted to hold the vehicle. The stands can be lowered to the surface when not in use or removed.
    Type: Grant
    Filed: January 24, 2008
    Date of Patent: October 12, 2010
    Inventor: Tom Clark
  • Publication number: 20100224841
    Abstract: A control system for a lifting device and a lifting device comprising the same are disclosed. The control system includes a control unit comprising a processor with a memory communicatively coupled to the processor and having computer readable and executable instructions. A battery is electrically coupled to the control unit in addition to at least one indicator. The processor executes the computer readable and executable instructions to: determine an operating characteristic of the lifting device and an operating time of the lifting device as the lifting device is actuated; determine an accumulated load-time parameter for the lifting device based on the operating characteristic and the operating time; store the accumulated load-time parameter in the memory of the lift control system; compare the accumulated load-time parameter to a service constant; and provide an indication the indicator that a lift structural component requires service based on the comparison.
    Type: Application
    Filed: March 4, 2010
    Publication date: September 9, 2010
    Applicant: LIKO RESEARCH & DEVELOPMENT AB
    Inventor: Gunnar Liljedahl
  • Patent number: 7762529
    Abstract: An universal tool for unlatching a locking pin on a gooseneck ball hitch comprises an arm supported on a support leg.
    Type: Grant
    Filed: February 23, 2007
    Date of Patent: July 27, 2010
    Inventor: Raymond C. Scott
  • Publication number: 20100171084
    Abstract: The present invention relates to an assembly having in combination an apparatus and a smooth and rigid plane on which the apparatus moves. The assembly allows, when activated by the foot of the user acting as a drive and directive force, the door to be raised and movements from bottom to top, front to back, right to left and vice versa to be executed, while the hands of the user no longer carry the load and are free to intervene.
    Type: Application
    Filed: January 22, 2010
    Publication date: July 8, 2010
    Inventors: Jean-Noel Guillore, Paul Janin
  • Publication number: 20100156165
    Abstract: This invention relates to mechanisms and systems for securing a child safety seat to a vehicle seat. Some embodiments include one or more movable anchoring structures. The anchoring structures can be connected to a rotatable member that is capable of exposing and retracting the movable anchoring structures. The rotatable member can also be connected to one or more lever members disposed at one or both ends of the rotatable member and capable of hand operation.
    Type: Application
    Filed: December 22, 2009
    Publication date: June 24, 2010
    Inventor: Philip Vais
  • Publication number: 20100065796
    Abstract: A tool for temporarily lifting and supporting reinforcing mesh above an underlying surface includes an elongate rod that can be held at a first end and which has a portion at a second end opposing the first end. The elongate rod, which can engage under an element of mesh, is mounted on a base member for turning on the underlying surface with a rotary movement of the elongate rod, so that movement of the elongate rod acts to lift the element of mesh.
    Type: Application
    Filed: September 15, 2009
    Publication date: March 18, 2010
    Inventor: Michael Crowe
  • Publication number: 20100001240
    Abstract: An illuminative jack is provided, having a plurality of lights recessed within a top plate to provide illumination directed to a lifting location. The jack includes transparent material positioned disposed below the contact surface of the top plate and disposed above the plurality of lights to protect the lights, while allowing light to emanate on the lifting location.
    Type: Application
    Filed: September 13, 2009
    Publication date: January 7, 2010
    Applicant: Test Rite Products Corp.
    Inventor: Lai-Shun Lin
  • Patent number: 7624966
    Abstract: There is disclosed a manual assist for opening a window, door or other mechanism that slides in a preset track. The manual assist comprises an elongated, preferably contoured handle; a wedge near one end of the handle; and a base pivotally mounted to the handle near the wedge end. Preferably, this manual assist may be hung near a window using a Velcro® strip pair, aperture or hook when not in use.
    Type: Grant
    Filed: January 29, 2007
    Date of Patent: December 1, 2009
    Inventors: Kerrick R. Dando, Neal R. Dando, M. Jonell Kerkhoff
  • Publication number: 20090134371
    Abstract: A curb box lifter comprises a frame that includes crossbar members, through holes, or partially drilled openings as points of engagement for a pry bar for the purpose of upwardly lifting water main curb boxes. The proximal end of the curb box lifter includes a pipe threaded region enabling it to be spun into a receiving female threaded curb box lid, usually situated in the ground. A pry bar introduced into the curb box lifter at its points of engagement, in conjunction with a block like device used a leverage point, enables the upward motion of the curb box as a downward force is employed to the pry bar distal end.
    Type: Application
    Filed: November 25, 2008
    Publication date: May 28, 2009
    Inventor: Gregory Allen Pawelk
  • Patent number: 7387293
    Abstract: The present invention discloses a device and method that allows the installation of construction materials, such as drywall, by a single person. The device comprises an extension (or hoist) section coupled at one end to a support which can receive and support a piece of drywall during installation. The extension section is further coupled to a base portion at the end opposite to the support. The base portion includes a pivot feature that serves to lift the drywall once it has been positioned on the support. The extension is adjustable to install drywall on a stud wall at various heights. Advantageously, the device is lightweight, easily transportable and easy to use. The device's convenient design enables its utilization immediately upon reaching a construction site.
    Type: Grant
    Filed: December 22, 2004
    Date of Patent: June 17, 2008
    Assignee: Lawrence Boucher Construction Inc.
    Inventor: Lawrence Boucher
  • Patent number: 7293759
    Abstract: A cover lifting device for lifting a cover having two spaced lifting holes includes an elongate lever, a lifting hook affixed to one end portion for engagement with one hole, a sleeve freely slideably mounted between lever ends and another lifting hook, a flexible element attaches the second hook to the sleeve. The second hook has a shank with a straight axis and a lower gripping element. The improvement includes an upper connecting portion extending laterally of the axis and in an opposite direction to the element. The connecting portion has an opening to connect the element, which is offset from the axis to rotate the hook when a lifting force is applied at the opening.
    Type: Grant
    Filed: April 1, 2006
    Date of Patent: November 13, 2007
    Inventors: Bill Beach, Paul McMullan
  • Patent number: 7226036
    Abstract: A frame moving apparatus includes a first plate having a top side and a bottom side. A second plate has a top side and a bottom side. A plurality of gripping members is attached to and extends downwardly from the bottom sides of the first and second plates. A post extends upwardly from the top side of the first plate. A handle has a lower end attached to the top side of the second plate. An elongated member has a first end pivotally coupled to the handle and a second end attached to the post. A fixed surface is gripped with the second plate and a wall frame is gripped with the first plate. An upper end of the handle is moved toward or away from the first plate so that the wall frame is moved in a same direction as the upper end of the handle.
    Type: Grant
    Filed: August 25, 2005
    Date of Patent: June 5, 2007
    Inventor: William A. Wellman, Jr.
  • Patent number: 7163195
    Abstract: Displaced force backing wedge with a rigid wedge shape, a rigid handle, the wedge shape having a plurality of rounded ridges extending from left to right at its top most surface. The wedge shape has a centrally located slot extending perpendicularly from the thin edge of the wedge to the center area of the wedge. The handle extends outward perpendicularly from a central portion of the thick side of the wedge. A preferred embodiment includes rounded ridges that run parallel to the front surface and start as a small radius and progress to larger radius.
    Type: Grant
    Filed: September 10, 2004
    Date of Patent: January 16, 2007
    Inventor: Jeffrey G. Lawson
  • Patent number: 7156141
    Abstract: A tire demounting tool for demounting a second bead of a tire from a rim having a flange, the tire demounting tool including a handle; a head extending radially outward as it extends axially outward from the handle; a bill extending axially outward from the head, wherein the bill includes a tip insertable between the second bead and the rim and wherein the head extends radially outward relative to the bill to capture the second bead when the bill is inserted between the rim and the second bead.
    Type: Grant
    Filed: May 16, 2006
    Date of Patent: January 2, 2007
    Assignee: Summit Tool Company
    Inventor: Roger Kliskey
  • Patent number: 6966542
    Abstract: A lift is provided with a low profile lifting mechanism. The lifting mechanism includes a first member pivotally connected to a base, a second member pivotally connected to the first member and a third member pivotally connected to the second member and to the base. When the lifting mechanism is lowered into the bottom position, the first, second and third members rest flat instead of stacked on each other. As a result, it is possible for the lifting mechanism to fit within the height of the base when the lift is in the bottom position. Thus, the overall height of the lifting mechanism in the bottom position is no more than required for the height of the base and the rollers.
    Type: Grant
    Filed: February 28, 2004
    Date of Patent: November 22, 2005
    Assignee: Eastway Fair Company Limited
    Inventor: Leland A. Bettencourt
  • Patent number: 6802493
    Abstract: A motorcycle lift [100] comprises two lift arms [103A, 103B] attached to a cross bar [105]. Support sleeves [109A, 109B] attached to the ends of the lift arms surround the foot pegs [150A, 150B] of the motorcycle [301] to securely engage the vehicle. Clamps [125A, 125B] provide a means to adjust the width between the support sleeves for engagement to the foot pegs. A lever [107] attached to the cross bar raises and lowers the motorcycle. Replaceable sleeves [109A, 109B] allow relatively tight diametrical clearance with various foot peg designs to provide stable support. The design allows stable support even with foot pegs of folding designs.
    Type: Grant
    Filed: August 21, 2002
    Date of Patent: October 12, 2004
    Inventor: Richard M. Lance
  • Patent number: 6684927
    Abstract: A mounting tool for mounting a tire onto a rim, the tool comprising a handle having a first end and a second end and a longitudinal axis; a first mounting end adjacent the first end of the handle; the first mounting end including a dependent shaft extending outwardly from the handle and a dependent tip extending from an end of the shaft; a wing located adjacent the shaft and inward of the tip and the wing including a wheel rim engaging surface extending outward beyond at least one side of the tip and in an orientation perpendicular to the longitudinal axis of the handle.
    Type: Grant
    Filed: October 24, 2000
    Date of Patent: February 3, 2004
    Assignee: Summit Tool Company
    Inventor: Roger Kliskey
  • Patent number: 6497399
    Abstract: A simple, compact, hands free device that allows a single operator to vertically lift and hold construction panels to a desired height for securing to a wall surface. Downward foot pressure on one end of a slotted lever arm causes a panel lifting surface on the other end of the lever arm to rise. This lever arm is supported by a base support which also supports a locking arm. Once the desired height is reached, the device locks the panel into position. The operator is then free to move about, adjust, and finally secure the panel. Once the panel is secured, the locking arm is released by simple forward pressure. With the aid of a foot strap, the device can then be transported to the next panel ready for lifting. This device eliminates the use of hands, bending, or stooping during the process of lifting construction panels.
    Type: Grant
    Filed: May 28, 2002
    Date of Patent: December 24, 2002
    Inventor: Mark S. Nelson
  • Patent number: 6474626
    Abstract: A lawn mower rack is formed of a structural base for resting on a support surface. First and second spaced apart longitudinal rails supported by the base and adapted to receive wheels of a lawn mower thereon. A first manually operated lifter is provided for elevationally supporting rearward portions of the longitudinal rails above the base and a second manually operated lifter, independent of the first lifter, is provided for elevationally supporting forward portions of the longitudinal rails above the base so that thereby only approximately one half of the weight of a lawn mower need be lifted at a time.
    Type: Grant
    Filed: December 4, 2001
    Date of Patent: November 5, 2002
    Inventor: Clyde Box
  • Patent number: 6260824
    Abstract: A pry bar capable of removing boards while minimizing damage during removal so that the boards may be reused. The pry bar having a handle, a cross bar, and two pairs of pry arms with each pair having a different length. The handle forms an acute angle with one pair of pry arms and an obtuse angle with the other pair of pry arms. Either pair of pry arms is placed behind the board to be removed then force is exerted against the handle to remove the board.
    Type: Grant
    Filed: June 6, 2000
    Date of Patent: July 17, 2001
    Inventor: John B. Aderhold
  • Patent number: 6170803
    Abstract: A leverage tool for opening lower halves of firmly sticking double-hung windows consisting of a vertical fulcrum and lever assembly small enough to be placed on inner window sills yet sturdy enough to overcome the resistive forces that cause windows to stick. Accessory focal or lifting points necessary to facilitate the leveraging action of the tool and to minimize the possiblity of damage to the frame or sill incidental to a leveraging operation are supplied. They are to be attached by the user to window frames lacking a suitable focal point, preferably close to the central portion of the bottom frame member. To leverage open a sticking window frame, bottom crossbars on the lever are placed under the focal point. Another set of crossbars an inch above the lower set are then positioned within one of the lower ratcheting indents on the fulcrum When the tool is positioned as described, the fulcrum will be resting on an inner window sill with the lever's handle portion facing away from the window frame.
    Type: Grant
    Filed: June 18, 1998
    Date of Patent: January 9, 2001
    Inventor: Sidney Liberfarb
  • Patent number: 6141836
    Abstract: An over-center load binding apparatus for interconnecting two tension members and tightening them towards one another, which includes a yoke, a first tension member pivotally connected to the yoke, an elongated pivot arm having a first end pivotally connected to the yoke, a second tension member connected to a second end of the elongated pivot arm, whereby the elongated pivot arm adapted to be pivotal between an open position and a closed position in which the second end thereof to which the second tension member is connected, will pass arcuately around the first tension member to an over dead-center position, a lever arm connectable to the yoke for forcibly pivoting the yoke to dispose the elongated pivot arm in the closed position, a latch for latching the elongated pivot arm in the closed position, and a key lock mechanism incorporated within the yoke for locking the latch while the latch is latching the elongated pivot arm in the closed position.
    Type: Grant
    Filed: April 6, 1999
    Date of Patent: November 7, 2000
    Inventor: Sean E. Thornton
  • Patent number: 5934649
    Abstract: A hand operated post and pole extraction device for removing a pole or post from the ground. The device includes a frame assembly having a base section, a vertical frame member extending therefrom and a plurality of leverage arms each extending along the length of and substantially perpendicular to the vertical frame member. A handle assembly is pivotally held atop one of the plurality of leverage arms and a chain assembly is removably connected to one end of the handle assembly. When the chain assembly is wrapped around the pole or post and a force is applied to one end of the handle assembly towards the ground, the handle assembly is caused to pivot about the leverage arm applying a force to the opposite end connected to the chain assembly and the pole or post in a direction away from the ground causing the pole or post to be extracted from the ground. The frame assembly also includes an upright support member extending at an angle from the vertical frame member providing additional support thereto.
    Type: Grant
    Filed: May 11, 1998
    Date of Patent: August 10, 1999
    Inventor: Scott Loren Drane
  • Patent number: 5794918
    Abstract: An apparatus and method for pulling fence posts having fulcrum stand (B) with an action lever (A) movably connected to one end (A1) of fulcrum stand (B) by hinge (B2). A receiving box (A2f), for encompassing the object to be moved, is connected to the action lever (A). An action handle (A3) is attached to the receiving box (A2f) and the fulcrum stand (B), and a moveable gripping pawl (A2d) is connected to the action handle (A3) for engaging the object to be pulled as the action handle (A3) is raised. The movable gripping pawl (A2d) includes two edges, an engagement edge and a non-engagement edge, and a connector (A2g) to connect the gripping pawl (A2d) to the action handle (A3) so that the object to be pulled is raised by the engagement edge as the action handle (A3) is raised.
    Type: Grant
    Filed: November 20, 1996
    Date of Patent: August 18, 1998
    Inventor: M. G. Price
  • Patent number: 5775673
    Abstract: A load binder tool is provided for use with a lever-type load binder. The tool includes a base member and a handle member. The handle member is pivotally mounted to the base member at a pivot point between the first and second end of the handle member. A portion of the handle member defines a generally U-shaped cradle open at the first end and terminating at an end wall prior to the pivot point. The U-shaped cradle is sized to receive the lever of the lever-type load binder. The base member acts as a fulcrum as the handle member is pivoted about the pivot point such that the U-shaped cradle raises the load binder's lever from its locked position. The U-shaped cradle allows the lever to freely snap into its unlocked position without requiring any portion of the tool to travel therewith.
    Type: Grant
    Filed: May 3, 1996
    Date of Patent: July 7, 1998
    Assignee: Binder Jac, L.C.
    Inventors: Melvin R. Carnes, Sr., Jeffrey S. Carnes
  • Patent number: 5713557
    Abstract: A jack comprises a main frame device, an extensible rod device and two wheels. The main frame device has an upright pipe, a driving rod connected to the upright pipe, a reinforced plate connected to the driving rod and the upright pipe, an upper rod inserted in the upright pipe, and an upper block mounted on the upper rod. The extensible rod device has an outer pipe, a middle pipe inserted in the outer pipe, and an inner pipe inserted in the middle pipe. An inserted end of the driving rod is inserted in a lower end of the outer pipe. Two wheels are fastened on the upright pipe pivotally.
    Type: Grant
    Filed: September 24, 1996
    Date of Patent: February 3, 1998
    Inventor: Hsin-Fa Kang
  • Patent number: 5676011
    Abstract: Wire drawing apparatus for ease in manually drawing precious metal wire is formed by an elongated base having a forward end portion transversely supporting a draw plate through which wire stock may be drawn and a downturned rearward end portion having a pivotally connected upstanding lever moveable at its upper end portion toward and away from the draw plate by pivoting about a horizontal axis. A wire grip for grasping wire dawn trough the draw plate is attached to the lever by a link chain extending through a keyhole slot in the depending end portion of the lever for edgewise nesting one link of the chain prior to manually moving the lever in a direction opposite the draw plate.
    Type: Grant
    Filed: May 20, 1996
    Date of Patent: October 14, 1997
    Inventor: Jack Y. Allison
  • Patent number: 5617628
    Abstract: An integrated circuit extraction tool for extracting sockets or microprocessors having a staggered pin grid array (SPGA) pin arrangement. Such tool includes an elongated base having a first end and a second end, each end forming a set of teeth that permit entry and extension of the teeth, diagonally, through the staggered pins of the socket or microprocessor. In the preferred embodiment, the first end is disposed at ninety degree with respect to the elongated base. Further, the elongated base is formed with a curvature to enhance the leverage action necessary for an extraction operation.
    Type: Grant
    Filed: December 16, 1994
    Date of Patent: April 8, 1997
    Assignee: Cyrix Corporation
    Inventors: Stanley D. Harder, Thomas D. Selgas, Jr.
  • Patent number: 5440803
    Abstract: An integrated circuit extraction tool includes an elongated base having a first end and second end. A first set of teeth are provided on the first end and a second set of teeth are provided on the second end. The first set of teeth are spaced at a first spacing distance and the second set of teeth are spaced at a second spacing distance. In the preferred embodiment, the first set of teeth are spaced to correspond with the spacing between pins of a integrated circuit to be extracted and the second set of teeth are spaced at a distance to correspond to the spacing between base portions of a socket's connectors. One or both of the ends may be angled at ninety degrees to allow integrated circuit removal with minimal clearance.
    Type: Grant
    Filed: May 17, 1993
    Date of Patent: August 15, 1995
    Assignee: Cyrix Corporation
    Inventors: Thomas D. Selgas, Jr., Sean T. Crowley, Paul J. Pascarelli
  • Patent number: 4958804
    Abstract: A lawn mower service lift has a mower supporting frame mounted for pivotal movement between raised and lowered positions on a base frame by a parallelogram linkage. A stop rail maintains the support frame in the raised position by abutting the parallelogram linkage in an over center position. The supporting frame lies between parallel side rails of the base frame which serve as a guide track to properly align a lawn mower on the supporting frame. The device is useful in performing repair and maintenance on push-type rotary lawn mowers.
    Type: Grant
    Filed: June 7, 1989
    Date of Patent: September 25, 1990
    Inventors: Robert R. Lenius, Steven M. Barlament
  • Patent number: 4911460
    Abstract: A lateral trailer tongue jack has a base plate for resting on a ground surface beneath a trailer tongue. The base includes a lateral channel iron track having a framework disposed over the track. A vertically oriented tubular socket has a wheel mounted at a lower end thereof which rides in the track. A lead screw disposed laterally across the framework is engaged with a threaded floating carriage within the socket. The socket accepts the lower end of a vertical tongue jack of the trailer. A crank attached to the lead screw is used to move the socket laterally along the track to align the trailer tongue hitch socket with the hitch ball of a towing vehicle.
    Type: Grant
    Filed: February 13, 1989
    Date of Patent: March 27, 1990
    Inventor: Alfonso DePaula
  • Patent number: 4756181
    Abstract: A method of making and using a tool for use in locking and unlocking a load-enveloping chain binder, the tool being formed by cutting off the front end of a cylindrical pipe section at an acute angle to provide a leading edge on one side of the front end and an opposite trailing edge. One side of the pipe section is creased rearwardly of both the leading and trailing edges to form an axially sloping, internal, piloting and stop projection against which the handle of the chain binder is received, and while simultaneously squeezing the lateral sides of the pipe pipe section to provide a handle rearwardly of the internal projection.
    Type: Grant
    Filed: March 12, 1987
    Date of Patent: July 12, 1988
    Inventor: Dallas A. Appelgren
  • Patent number: 4660447
    Abstract: This invention provides a wheel wrench support which comprises a stand member having a suitable base and an elongate body having a plurality of step-like formations or notches along the one side of the body, and a saddle member which includes a saddle formation or seat in which part of a wheel wrench can rest, an engaging formation adapted to engage a desired notch of the stand member, and biassing means capable of urging the saddle member toward the stand member in such a manner that the engaging formation engages a notch of the stand member.The saddle member also comprises a recess formation, preferably in the form of a passage, extending vertically through the saddle member so that the stand member passes through the passage of the saddle member.The biassing means comprises a spring-loaded pin or ball contained substantially within the body of the saddle member on that side of the saddle member opposite to the engaging formation and relative to the recess formation or passage.
    Type: Grant
    Filed: June 25, 1985
    Date of Patent: April 28, 1987
    Inventor: Walter G. Rossi
  • Patent number: 4604022
    Abstract: A lifting mechanism adapted to be placed in the trunk of a vehicle, the lifting mechanism having a lift platform movable from a storage position within the trunk to an elevated position in which the lift platform projects outwardly from the trunk, the platform being raised and lowered by a lever mechanism with or without a powered assist. The lifting mechanism may be used alone or in combination wtih a wheeled cart and an article supporting carriage by means of which the article may be transferred between the cart and the lifting mechanism.
    Type: Grant
    Filed: April 2, 1984
    Date of Patent: August 5, 1986
    Assignee: Ferno Washington, Inc.
    Inventor: Elroy E. Bourgraf
  • Patent number: 4498688
    Abstract: A skid attachment for a shopping cart, useful in operative position to allow easy movement of the cart over snowy and icy surfaces, as in supermarket parking lots, includes a pair of skid members near the front wheels of the cart, when the attachment is installed, which are selectively movable into inoperative storage position underneath the cart and into operative position with the skid surfaces thereof being lower than the front wheels of the cart, hand operable linkages for moving the skid members selectively into either inoperative or operative position, and fastening means for holding the skid members and the associated linkages to the cart. Preferably, the skid attachment includes stops for limiting the movements of the skid members, locking means for holding them in position and handle or equivalent means so that the skid members may be readily moved into desired positions.
    Type: Grant
    Filed: March 23, 1982
    Date of Patent: February 12, 1985
    Inventors: Donald N. Walters, Theodore P. Link
  • Patent number: 4334669
    Abstract: A portable sawmill is provided in which a rigid straight channel support is placed on a floor or on the ground with one end slightly elevated. A pair of longitudinally spaced log supports are mounted in the channel piece at a distance corresponding to the length of a log to be placed thereon. A carriage with rollers is mounted to ride along the upturned edges of the channel piece and is adapted to roll by gravity from the elevated end of the channel piece to the lower end. The carriage includes a bandsaw driven by a low horse power motor and is equipped with a release mechanism for automatically disengaging the drive between the motor and the saw at the end of a cutting stroke. A jacking mechanism and adjustable shelves on the log supports are included for raising the log to a new height after each cut.
    Type: Grant
    Filed: May 22, 1981
    Date of Patent: June 15, 1982
    Inventor: Warren K. Ross
  • Patent number: 4320904
    Abstract: A shopping cart incorporating a removable skid attachment, useful in operative position to allow easy movement of the cart over snowy and icy surfaces, as in supermarket parking lots, includes a pair of skid members near the front wheels of the cart, when the attachment is installed, which are selectively movable into inoperative storage position underneath the cart and into operative position with the skid surfaces thereof being lower than the front wheels of the cart, hand operable linkages for moving the skid members selectively into either inoperative or operative position, and fastening means for holding the skid members and the associated linkages to the cart. Preferably, the skid attachment includes stops for limiting the movements of the skid members, locking means for holding them in position and handle or equivalent means so that the skid members may be readily moved into desired positions.
    Type: Grant
    Filed: January 7, 1980
    Date of Patent: March 23, 1982
    Inventors: Donald N. Walters, Theodore P. Link