Sliding Patents (Class 16/33)
  • Patent number: 10859198
    Abstract: A foot for household appliance and a household appliance are provided. The foot includes: a hydraulic plate; a sheath, fixedly connected with the hydraulic plate; an adjustable foot, arranged in the sheath and capable of axially moving relative to the sheath, an accommodating chamber is formed by the hydraulic plate, the sheath and the adjustable foot; a hydraulic medium, arranged in the accommodating chamber, and the hydraulic medium is compressed or expanded depending on pressure changes to drive the adjustable foot to move axially in the sheath for leveling. At least two feet are communicated with each other to allow the hydraulic medium to flow between the feet. A liquid flowing passage for allowing the hydraulic medium to flow is arranged in the hydraulic plate. A control device for controlling the liquid flowing passage to open or close is arranged on at least one of the feet.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: December 8, 2020
    Assignees: QINGDAO HAIER WASHING MACHINE CO., LTD., QINGDAO HAIER SMART TECHNOLOGY R&D CO., LTD.
    Inventor: Zhiqiang Zhao
  • Patent number: 10688826
    Abstract: An adjustable caster assembly includes a body having a top surface and a base, and an opening within the base. A wheel is connected to the body, where the wheel is configured to extend beyond the base of the body to engage a supporting surface. A foot is positioned within the opening in the base and configured to move between an expanded position and a contracted position. The foot may be actuated by an actuation shaft that engages a gear. The actuation shaft may be movable between an engaged position and a disengaged position.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: June 23, 2020
    Assignee: DoRodo, LLC
    Inventors: Joel Hall, Jason Popma, Jaekil Chung
  • Patent number: 10450154
    Abstract: Fall restraint equipment comprising a mobile access unit having a mobile platform portion, a ladder portion, and a cage portion. The components of the fall restraint equipment are formed from butterflying, lasering, cutting, bending, and/or stamping continuous pieces of tubular and sheet metal. The components of the mobile access unit are modular and include adapters of varying height that cause the mobile access unit to exhibit varying height. Also, the mobile access unit is adaptable so that it can roll in a first direction of orientation of the ladder or a second direction perpendicular to the first direction.
    Type: Grant
    Filed: January 22, 2018
    Date of Patent: October 22, 2019
    Assignee: Safe Rack LLC
    Inventor: Robert W. Honeycutt
  • Patent number: 9273817
    Abstract: The present invention is directed to a stand 10 to be mounted to an article for example, the foldable-leg table. The stand 10 comprising a base portion 15, and a body portion 20 connected thereto, wherein the base portion 15 comprises a shaft having each end coaxially bent downward defining a leg 30, 30? forming a semi-rectangle like frame. The body portion 20 perpendicularly connected to the base portion 15 in an off- center manner toward one of the two legs of the base portion. The body portion 20 comprising an outer body 40 telescopically encasing an inner body 45. The inner body 45 being longer and smaller in diameter than the outer body 40 and includes two spaced- apart stopper holes, a first stopper hole 50 and a second stopper hole 55 along its length and having an end connected to the base portion 15. The inner body 45 is able to slide in and out along the length of the outer body 40.
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: March 1, 2016
    Inventor: Viroj Khanampornpan
  • Patent number: 8943648
    Abstract: An adjustable support device includes a base that includes a plurality of rolling element receiving cavities, a plurality of rolling elements that interface with the rolling element receiving cavities, and an external sleeve coupled to the base for adjustable vertical positioning of the external sleeve relative to the base. Each of the rolling element receiving cavities is positioned and oriented to interface with a rolling element disposed between the base and the support surface. The external sleeve can be placed in a first vertical position relative to the base where the rolling elements do not contact the support surface, and in a second vertical position relative to the base where the rolling elements do contact the support surface. A rimguard may be rotatively coupled with the external sleeve so that as the external sleeve is rotated to the first vertical position.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: February 3, 2015
    Assignee: Techni, LLC
    Inventors: George Fanourgiakis, Lawrence J. Brucia
  • Publication number: 20140075717
    Abstract: A caster wheel device for a domestic appliance is in the form of a wheel mounting carriage, a dial having an underside forming a cam, a cam follower that contacts the cam, a wheel bracket and a wheel. The wheel bracket retains the wheel within it so that the wheel and bracket pivot about the follower independently of the carriage. The cam follower is attached to the wheel bracket and the wheel is able to trail behind the cam follower to form a trailing wheel caster when lowered.
    Type: Application
    Filed: March 21, 2012
    Publication date: March 20, 2014
    Inventor: Robert Grassia
  • Patent number: 8230552
    Abstract: A glider that attaches to the bottom of the legs of a walker is disclosed. The glider, preferably a ball made from wood, provides the walker with additional stability and mobility. The glider includes a hole with a rubber stopper that secures the glider to the leg of a walker. A screw is first inserted into the glider and then a design is created on the glider. The screw is removed and then a hole is drilled over the same spot, large enough to fit the leg of a walker. A rubber stopper is inserted into the hole to help secure the leg of the walker to the glider. A scribe line can be included around the opposite end of the glider to inform users of when to replace the glider.
    Type: Grant
    Filed: September 24, 2008
    Date of Patent: July 31, 2012
    Inventors: Louise Ann Klugh, Dawn Louise Cunha, Heidi Jean Correia
  • Patent number: 8201672
    Abstract: An enhanced structure for the base with roller and belt of hardshell zipper case is provided, including a hardshell zipper case main body, a plurality of hidden roller units, a retractable belt unit, and an auxiliary wheel set. The hidden roller units and the retractable belt unit are placed inside the roller housing trench and the belt housing trench located at the bottom of the hardshell zipper case main body. When the hidden roller units are not in use, the roller units are entirely hidden inside the roller housing trench so that the roller unit will not be damaged due to careless handling. To move the hardshell zipper case, the outer rim of the roller units are exposed outside of the surface of the roller housing trench so that the roller units can roll along when moved. The belt of retractable belt unit can be easily pulled out from one end of the bottom of the hardshell zipper case.
    Type: Grant
    Filed: October 7, 2009
    Date of Patent: June 19, 2012
    Inventor: Sheng Cho Yang
  • Patent number: 8087126
    Abstract: A bed leg with a caster, equipped with a braking mechanism that allows the bed to be immobilized is provided. The bed leg comprises a housing, which houses a caster, an actuating mechanism installed in the housing, a pedal joined to a lever and a braking pad mounted on the lower part of the actuating mechanism.
    Type: Grant
    Filed: March 19, 2008
    Date of Patent: January 3, 2012
    Assignee: Hill-Rom SAS
    Inventors: Jean-Bernard Duvert, Pascal Guguin, Frederic Ribera
  • Patent number: 7930900
    Abstract: A charm clasp having a torus shape and formed as two pivotally connected arcuate parts which are adapted to encircle and releasably attach to a segment of a necklace formed as a strand of pearls, this clasp including an eyelet for attachment of a charm thereto.
    Type: Grant
    Filed: June 6, 2008
    Date of Patent: April 26, 2011
    Assignee: Mikimoto (America) Co., Ltd.
    Inventor: Amy Kim-Araneo
  • Publication number: 20100180377
    Abstract: A leg assembly for use as at least one supporting leg of an infant enclosure or other device, the leg assembly having an elongated leg member, a solenoid actuator having a coil adapted when the actuator is actuated to move longitudinally relative to the armature of the solenoid actuator and a compression spring which is resiliently compressed upon movement of the coil which imparts motion to the leg member in a vertical direction.
    Type: Application
    Filed: January 22, 2010
    Publication date: July 22, 2010
    Inventor: Christopher Robert Murray Mitchell
  • Patent number: 7703174
    Abstract: Snappable wheel holders for environmental control units such as radiators, heaters, fans and air conditioners. Wheel holders can attach wheels to brackets located underneath the units by mateably attaching male protruding ends into female slots. Plastic triangular pieces can snap into openings to lock the wheel holders to the brackets. The brackets can be attached underneath the units by clamping U-bars with wing nuts.
    Type: Grant
    Filed: October 19, 2007
    Date of Patent: April 27, 2010
    Assignee: Chien Luen Industries, Co., Ltd., Inc.
    Inventors: John C. Bucher, Chad J. Ricker
  • Patent number: 7614114
    Abstract: Snappable wheel holders for environmental control units such as radiators, heaters, fans and air conditioners. Wheel holders can attach wheels to brackets located underneath the units by mateably attaching male protruding ends into female slots. Plastic triangular pieces can snap into openings to lock the wheel holders to the brackets. The brackets can be attached underneath the units by clamping U-bars with wing nuts.
    Type: Grant
    Filed: September 13, 2005
    Date of Patent: November 10, 2009
    Assignee: Chien Luen Industries, Co., Ltd., Inc.
    Inventors: John C. Bucher, Chad J. Ricker
  • Patent number: 7516512
    Abstract: A castor includes a main body, two rollers each rotatably mounted on the main body, a stop member movable in the main body between a first position where the stop member is located at a height higher than that of each of the two rollers and a second position where the stop member is located at a height lower than that of each of the two rollers, a slide slidably mounted in the main body to move the stop member, and a control member pivotally mounted on the main body to move the slide. Thus, when the stop member is movable downward to rest on the ground, the two rollers are suspended in the air, so that the castor is locked exactly without slipping or moving on the ground.
    Type: Grant
    Filed: June 16, 2006
    Date of Patent: April 14, 2009
    Inventor: Po-Chuan Tsai
  • Patent number: 7404566
    Abstract: A caster suspension system that employs a linkage between the two casters constraining one to rise when the other falls while keeping moment internal to the system such that there is no tipping of the load carried by the caster suspension system.
    Type: Grant
    Filed: June 28, 2005
    Date of Patent: July 29, 2008
    Assignee: Xerox Corporation
    Inventor: Erwin Ruiz
  • Patent number: 6637071
    Abstract: A one-piece caster and leveler assembly to aid in the transportation and installation of equipment that combines a leveler with a rotable foot and a wheel chassis. During movement of the equipment, the leveler may be placed in a retracted position where the rotable foot contacts and pitches away from the wheels, and rotates as the direction of movement changes, providing improved clearance, load capacity and tolerance for striking obstacles.
    Type: Grant
    Filed: February 25, 2002
    Date of Patent: October 28, 2003
    Inventor: Mark C. Sorensen
  • Patent number: 6594856
    Abstract: A fixed pivotal retractable roller mechanism 20 and method for statically supporting an item 46 upon a support surface 44 in an inoperative state and supporting the item 46 to roll along the support surface 44 in an operative state. The mechanism 20 includes a housing 22, a swingarm 26 pivotally engaged with the housing 22, a spring 36, and a roller 32. The swingarm 26 has pivotal movement relative to the housing 22, the swingarm 26 has an inoperative position state where the roller 32 is retracted allowing the housing 22 to rest on and statically contact the support surface 44 and an operative position state where the swingarm 26 is extended such that the housing 22 is not in contact with the support surface 44 allowing the item 46 to roll along the support surface 44. Other embodiments with castor and without a spring are also disclosed.
    Type: Grant
    Filed: March 7, 2002
    Date of Patent: July 22, 2003
    Inventor: Hema Cherukuri
  • Patent number: 6473935
    Abstract: An improved retractable roller mechanism 20 and method for statically supporting an item 42 upon a support surface 40 in an inoperative state and supporting the item 42 to roll along the support surface 40 in an operative state. The retractable roller mechanism 20 includes a housing 22, a roller frame 24 that is slideably engaged with the housing 22, a spring 30, and a roller 28. The roller frame 24 has reciprocative movement relative to the housing 22, such that the frame 24 has an inoperative position state where the frame 24 is retracted allowing the housing 22 to rest on and statically contact the support surface 40 and an operative position state where the frame 24 is extended such that the housing 22 is not in contact with the support surface 40 allowing the item 42 to roll along the support surface 40.
    Type: Grant
    Filed: May 21, 2001
    Date of Patent: November 5, 2002
    Inventor: Hema Cherukuri
  • Patent number: 6361252
    Abstract: A dock for supporting persons over a support surface such as a water bed has an elongated deck, a plurality of vertically adjustable post units, and a wheel attached to each post unit for transporting the dock across the support surface. The vertically adjustable post units are secured to the deck at spaced-apart locations and include a first elongated post section connected to the deck, a second elongated post section vertically movable with respect to the first elongated post section, and a base pad connected to the second elongated post section. A wheel assembly supporting a rotatable wheel is rigidly connected to the first elongated post section. The post units are adjustable to a transport position in which the base pad is off the support surface and the wheel is on the support surface. The vertically adjustable post unit is also adjustable to an operating position in which the base pad is on the support surface and the wheel is off the support surface for stabilizing the dock.
    Type: Grant
    Filed: February 1, 2001
    Date of Patent: March 26, 2002
    Assignee: Bob's Machine & Manufacturing, Inc.
    Inventor: Larry Allen Leitheiser
  • Patent number: 5956805
    Abstract: A retractrable wheel assembly for luggage cases includes an outer U-shaped member being rectangular in shape and having an open vertical side secured to a L-shaped bracket, an inner U-shaped member slidably fitted inside the outer U-shaped member, two springs connected between hooks of the outer U-shaped member and the inner U-shaped member, a wheel pivotally connected to a bottom of the inner U-shaped member, a positioner fixedly mounted within the inner U-shaped member, a V-shaped torsion spring having an intermediate portion fixedly mounted inside the positioner and two ends provided with two blocks configured to extend through the the openings of the positioner, the inner U-shaped member and the outer U-shaped member, and a string having an upper end extending out of the outer U-shaped member and a lower end engaged with the two ends of the V-shaped torsion spring.
    Type: Grant
    Filed: August 19, 1998
    Date of Patent: September 28, 1999
    Inventor: Liang-Yuan Huang
  • Patent number: 5903956
    Abstract: A three-wheel pivot-caster assembly that provides mobility for a power tool is described. The pivot-caster assembly includes a first frame assembly with two wheels and a second frame assembly that has a caster assembly which includes a swivel wheel. The first and second frame assemblies may be adjusted to accommodate power tools of various sizes. Additionally, a "stopping" mechanism is provided to maintain the swivel caster in its set position when the power tool is lifted. A straight line action clamp mechanism with locking feature prevents accidental actuation of the swivel caster when the tool is lifted or used over an uneven surface.
    Type: Grant
    Filed: November 18, 1997
    Date of Patent: May 18, 1999
    Assignee: Emerson Electric Co.
    Inventor: John L. Theising
  • Patent number: 5718483
    Abstract: An adjustable hinge mount for a seat having an adjustable seat back comprises an axle interconnecting first and second hinge members for pivotal motion relative to each other, an internal teeth formed in the second hinge member, a bearing plate having teeth for locking cooperation with the internal teeth, spaced guide walls formed in the first hinge member for guiding the bearing plate in reciprocal directions, and an control arrangement for controlling motion of the bearing plate into and out of engagement with the internal teeth. The control arrangement includes a lever and a cam in unitary motion with the lever for cooperation with the bearing plate. The cam is mounted to the first hinge member for pivotal motion about a cam axis located at a position spaced from an axis of the axle.
    Type: Grant
    Filed: November 29, 1996
    Date of Patent: February 17, 1998
    Assignee: Fuji Kiko Co., Ltd.
    Inventors: Satoru Yamaguchi, Isao Ikegaya, Eiji Okamoto
  • Patent number: 5457849
    Abstract: A detachable dolly for moving heavy electronic equipment employs a mounting bracket and a wheel assembly, the mounting bracket having a support plate and a mating flange. The mounting bracket is secured to the equipment by the support plate, having at least one lifting dowel, and at least one mounting bolt. The wheel assembly has a wheel mounted within a wheel bracket and a rotation adjustment mechanism for raising and lowering the wheel and is detachably engaged with the mating flange on the mounting bracket by the use of a mating member. The mating member is movably coupled with the adjustment assembly such that when the mating member is engaged with the mating flange, rotation of the adjustment assembly serves to vertically raise or lower the equipment.
    Type: Grant
    Filed: March 29, 1993
    Date of Patent: October 17, 1995
    Assignee: Tandem Computers Incorporated
    Inventors: Terry L. Branson, Don Titel, Steve Reed
  • Patent number: 5259088
    Abstract: An improved chair caster comprises a main body, an upright tube, an elastic element, and a sustaining element. The chair remains stationary when no one sits on the chair, so as to enhance the safety of an office worker.
    Type: Grant
    Filed: March 11, 1993
    Date of Patent: November 9, 1993
    Inventor: Su-Hua Yang
  • Patent number: 5001808
    Abstract: A castor, which can efficiently absorb shock and the ball wheel of which can be alternatively received in or protruding beyond a cup-like shield thereof for positioning or moving. The caster comprises a sleeve which is secured to a hoop on the frame of a baby-walker for receiving a spring and a central shaft which comprises a ball wheel on the bottom. The sleeve comprises a Z-shaped track on its wall surface for the sliding and positioning therein of a lateral guide which is inserted therethrough and secured to the central shaft. A cup-like shield is secured to the bottom end of the sleeve to protect the ball wheel.
    Type: Grant
    Filed: March 29, 1990
    Date of Patent: March 26, 1991
    Inventor: Chin-Fu Chung
  • Patent number: 4998940
    Abstract: An object may be easily moved across a surface by means of a rotatable roller mechanism, and may be secured in a desired location on that surface by rotation of the roller mechanism. The rotatable roller mechanism comprises a rigid plate containing a slot, a bar designed to seat within that slot, a holding mechanism allowing the bar to rotate in close proximity to the slot in the rigid plate, and a roller mechanism attached to the bar. The roller mechanism may consist of wheels or flat rollers surrounding an axle, which is attached to the bar by two connecting pieces. The rigid plate is attached to the underside of the object. When the object is lifted, the bar rotates in the holding mechanism to a position perpendicular to the rigid plate. The bar is held in this position when the object is lowered, by means of the bar fitting into the slot. In this manner the rollers are held against the surface, and the object may be easily moved across the surface.
    Type: Grant
    Filed: October 3, 1989
    Date of Patent: March 12, 1991
    Inventor: Linn V. Norman
  • Patent number: 4845804
    Abstract: A retractable caster to facilitate moving an object. The caster comprises a frame having a planar base and sides circumscribing the base to form a cavity having an opening. The frame is secured to the bottom of the object. A first rigid flap is provided secured to the frame by a hinge to swing about an axis between open position perpendicular to the base and closed position parallel to but spaced from the base to close at least a portion of the cavity opening. A wheel is rotatably supported by a wheel support assembly secured to the flap. A portion of the wheel extends beyond the lower edge of the flap when in open position. An articulated strut is secured to and extends between a portion of the frame and the wheel support assembly. The strut folds when the wheel is in retracted position so that the wheel, wheel support and strut are fitted within the cavity between the base and the flap in closed position. A lock is provided with the strut for releasably locking the strut in operable position.
    Type: Grant
    Filed: June 4, 1987
    Date of Patent: July 11, 1989
    Assignee: Underkart Industries of Canada Ltd.
    Inventor: Alan Garrett
  • Patent number: 4763868
    Abstract: A rotatable disk mounted to a baseplate at each corner of a refuse compactor pivots between a first orientation having a horizontal axis of rotation for operation as a wheel and a second orientation having a vertical axis of rotation for operation as a leg. The disk is mounted on a bearing support that interfits with elongated slots formed in the baseplate to enable the height of any corner of the compactor, independent of the orientation of the disk, to be adjusted. In one embodiment, the bearing support comprises a nylon block into which an axle of the rotatable disk is snap-fit. In another embodiment, the bearing support comprises an angle bracket to which the axle is welded.
    Type: Grant
    Filed: October 17, 1986
    Date of Patent: August 16, 1988
    Assignee: Whirlpool Corporation
    Inventor: Daniel E. Teich
  • Patent number: 4747180
    Abstract: A castor has a brake rod (20;120;220) extending through a hollow stem (10) on which a body (4) carrying a pair of castor wheels (2) is rotatably mounted. The brake rod is moveable substantially vertically between an inoperative position and a braking position in which its lower end engages the surface on which the wheel (2) rest. Opposition to braking movement can be provided by a return spring (39;222) or by a spring arm (122). Movement of the brake rod can be effected by a cam (140) acting on the spring arm (122) or by a cam (40;240) acting on a lever (35;230) engaging the upper end of the brake rod. The brake rod (10) can be arranged to have an intermediate position in which rotation of the castor body (4) is prevented.
    Type: Grant
    Filed: June 16, 1986
    Date of Patent: May 31, 1988
    Assignee: Colson Castors (U.K.)
    Inventor: Stafford T. Screen
  • Patent number: 4621804
    Abstract: A therapeutic walker has features which permit its use by persons with varying degrees of disability and is capable of adaptation to be used in different ways as the level of disability diminishes. A walker frame extends substantially around three sides of the region occupied by person using the walker and a removable closure bar is attached across the frame on its open side. An elongated crotch-cradling panel of flexible material is removably attached between the closure bar and the frame on the opposite side of the walker. The person using the walker straddles the crotch-cradling panel which is adjustable in length for persons of different sizes. The legs of the walker are adjustable in height and terminate in removable or retractable casters. A person using the walker can either sit down on the seat or stand up in the walker (with appropriate adjustments being made in the length of the legs).
    Type: Grant
    Filed: March 25, 1985
    Date of Patent: November 11, 1986
    Assignee: R-Jayco Ltd.
    Inventor: Robin R. Mueller
  • Patent number: 4397062
    Abstract: A rotatable roller assembly includes a roller, a housing, a support pivotably connected at one end to the housing for pivotal movement between a first retracted position and a second extended position, the roller being rotatably connected to the other end of the support, first and second notches defined in the support for establishing the first and second positions, respectively, and a locking mechanism slideably movable into and out of locking engagement with the first and second notches to effect releasable locking of the support and thus the roller in the first and second positions, respectively.
    Type: Grant
    Filed: February 3, 1981
    Date of Patent: August 9, 1983
    Inventor: Jinn T. Huang
  • Patent number: 4108455
    Abstract: A cargo pallet incorporates a plurality of pneumatically extendable and retractable roller means disposed in a lower, deck or floor contacting portion thereof. The roller means are arranged in a pattern to provide equitable load distribution such that, when the roller means are extended, the pallet and any cargo thereon may be easily moved in any horizontal direction; and, when the roller means are retracted, the pallet is immobilized with its lower surface resting substantially flush with a cargo-supporting floor, deck or platform. Inherent load-levelling is accomplished since one or more roller means may be partially retracted to accommodate bumps and uneven portions of the floor, deck or platform over which the pallet is to be moved. The conjoint operation of one or more roller means in the foregoing manner also provides a cushioning or load-distributing action for the pallet and its cargo.
    Type: Grant
    Filed: December 22, 1975
    Date of Patent: August 22, 1978
    Assignee: The Boeing Company
    Inventor: Varnell L. James
  • Patent number: 4103391
    Abstract: A wheel unit for being mounted in a suitcase comprises a housing which, when installed, has a rectangular chamber that opens to the outside, within which a wheel is retracted under the force of a spring. The wheel is carried on a wheel bracket which is secured to a bearing block suitably movably retained in the housing. To place the same in use, the wheel is pulled against the force of the spring out of the housing, thus correspondingly moving the wheel bracket and bearing block. Assuming a horizontal wheel axis, the wheel and wheel bracket are turned 90.degree. about a vertical axis, and in this extended position, the wheel bracket is received in locking recesses in the housing.
    Type: Grant
    Filed: June 27, 1977
    Date of Patent: August 1, 1978
    Inventor: Hans Thomas Thomsen
  • Patent number: 4077086
    Abstract: A retractable castor mechanism for attachment to an article of furniture or other heavy object including a castor shank that is rotatably received by a socket of a retaining member. A mainspring biases the retaining member and the castor downwardly, and a latch pin is engageable with the retaining member to latch the castor against the force of the spring in an inoperative retracted position. The latch is operated by a releasing lever having a foot portion that rests against the floor, so that a slight push of the article across the floor causes the latch pin to disengage the retaining member, allowing the castor to descend to an operative position.
    Type: Grant
    Filed: January 10, 1977
    Date of Patent: March 7, 1978
    Inventor: Michael James Butler