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Document |
Document Title |
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7311329 |
Anti-tip wheel for a wheelchair
A wheelchair is provided with front anti-tip wheels adapted to assist the wheelchair in mounting an obstacle that the wheelchair approaches obliquely. The anti-tip wheels may function as casters,...
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7222476 |
Hand-pushed mower
A hand-pushed mower of which blade height setter is provided with a sphere rolling on the ground, many small spheres holding the sphere as to freely roll, a semi-spherical receiving member forming...
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6854160 |
Caster assembly for a bed frame member or furniture
A caster assembly that can be used with furniture to support the furniture and to make the furniture mobile. The caster assembly has a housing with a stem that extends upwardly to be attached to...
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6530119 |
Caster structure
A caster structure including a seat body, a linking member, a caster seat and a lower bearing cover. The linking member is integrally formed with an upper bearing cover. The seat body is formed...
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6457865 |
Ball-type anti-friction device
A ball-type anti-friction device which has a housing, a ball cage mounted within the housing for movement relative to the housing between a lower inactive position and an upper active position. The...
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6195838 |
Roller assembly with spring biased axial caster member
A dual roller assembly adapted to simultaneously rotate along perpendicular surfaces. The roller assembly comprises a pair of telescopically engaging shaft members sized to rotate and move axially...
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5989688 |
Composite nonwovens and methods for the preparation thereof
A composite nonwoven for controlled acquisition and distribution of liquid, comprising at least a first support layer and a first bulky layer, the bulky layer functioning to acquire and distribute...
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5906247 |
Ball transfer mechanism having a braking mechanism and a vehicle employing the ball transfer mechanism
A ball-transfer mechanism 1 is movable along the surface of floor 9, having a main body 2, a large ball 5, a plurality of small balls 6 and a restriction member 20. The large ball 5 is spherical...
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5694662 |
Global force bearer wheel/sphere
The Global Force Caster, acting as a multi-directional unhindered wheel permits an object, i.e. furnitures, shopping carts, mobility aids etc., resting on the global Force Bearer's threaded casing...
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5479677 |
Caster device
A caster device for supporting a push cart includes a cap member having a flat top fixed to the push cart and a circular side wall. The circular side wall of the cap member has an inwardly curled...
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5412838 |
Caster for baggage
A caster for baggage is provided which includes a lower fixing plate fixed firmly to an upper fixing plate to contain a ball, a shaft, a bearing and a ring therebetween. The ball is pivotally...
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5096308 |
Ball unit
Ball units for conveyor systems are known in which a load-bearing ball is seated in an essentially radially symmetric bearing unit having ball bearings in a bearing shell. The load-bearing ball is...
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5078019 |
Trackball device
A trackball device comprising a housing having a circular opening formed in a top wall thereof, a ball received in the housing and partially projecting through the circular opening, a pair of...
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4996738 |
Free wheel caster
A free wheel caster is provided and consists of a large ball rotatively carried within a cavity in a cup portion of a caster body which rolls against a plurality of small balls to ride freely...
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4955099 |
Movable support
A movable support which includes a first axle, two stub axles which are in line with one another and which extend in opposing directions from the first axle at right angles thereto, and two...
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4778041 |
Rolling member
A rolling support device or ball roller comprises a main ball housed in a casing comprising a substantially hemispherical bearing bush, an outer shell and a retaining ring assembly connected to the...
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4732490 |
Anti-friction element
Ball element for use in material handling equipment in which a rotatable ball is movable by a pneumatic piston from a first to a second position relative to a friction surface.
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4696583 |
Ball support assembly
A mounting member having an upper peripheral side wall to receive a ball member, and a lower connecting portion to be placed in locking engagement through a bottom opening in a base member. The...
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4689847 |
Ball unit
A ball unit (10), in particular for conveying devices (1), possesses a load ball (12), which by a part (14) of its surface can bear against a load object, a bearing unit (24), which so bears and...
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4635496 |
Attachment for a display position indicator
The invention provides a holder for a position indicator device used to position a cursor on a visual display. The holder comprises a rectangular base member having rotatably-mounted ball bearings...
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4402108 |
Reduced static castor
A caster is disclosed to provide a mobile support for a burden. The burden may be home or office furniture or may be industrial, laboratory or production equipment. The caster may be inverted and...
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4348784 |
Swivel type caster with seal and lubrication ring
A swivel caster of the type having an inverted U-shaped horn member with a cup-shaped upper portion that rotatably receives a swivel plate adapted for connection to the underside of the supported...
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4108455 |
Cargo pallet incorporating retractable ball units
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...
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4045096 |
Spokeless wheel and shroud therefor
A spokeless wheel which comprises a shroud in which a rotor (or hoop) is rotatably disposed and lateral bearings to laterally stabilize the rotor within the shroud. A series of resiliently mounted...
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3977040 |
Castor
A castor for an article of furniture which comprises a connecting member connected to the article and having a cylindrical portion at the lower side thereof, a wheel having a pair of shafts...
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3739894 |
BALL TRANSFER UNIT
A ball transfer unit including load spring means, locking means for releasably maintaining said unit within a structure and stop means for limiting the displacement of the ball when a load is...
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3577620 |
BALL CASTER AND METHOD MAKING THE SAME
Method of assembling the caster parts and locking them in assembled condition of a ball-type caster.
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3557401 |
CASTORS
The invention provides an improved castor of the type having a plurality of small balls disposed in a space for dual rolling contact between a load supporting large ball and a housing skirting and...
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3466697 |
BALL TRANSFER OR CASTER UNIT
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3455526 |
VIBRATION-PROOF DEVICE FOR SHIFTING AND INSTALLING MACHINES
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3445882 |
CASTER WHEEL
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3417422 |
Ball castors
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3401421 |
Caster
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3399421 |
Sanitary seal for casters
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3224032 |
Caster
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3132904 |
Device for rollably supporting a ball
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3096536 |
Retractable ball caster
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3025075 |
Mobile shipping and storage unit
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2972162 |
Mounting of load-bearing balls or loadbearing rollers
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2830824 |
Dolly for moving parked vehicles
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2779965 |
Ball caster
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