Quotables
"That the automobile has practically reached the limit of its development is suggested by the fact that during the past year no improvements of a radical nature have been introduced."
Scientific American ; Jan. 2 edition, 1909
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| Number | Title | Issue Date |
| 8151412 | Caster with high-strength axle carrier A caster, in particular a free-running caster is provided. The caster includes twinned wheels and a housing with a substantially vertically aligned upper-side journal opening for holding a rotary journal which connects the caster to an item of furniture or to some o... | 04/10/2012 |
| 8087127 | Castor for a piece of furniture or the like A plurality of castors for a piece of furniture, each castor including a casing, two wheels, and fastener elements for fastening to the piece of furniture. The casing is made up of two units, each made as a single piece, the first unit including a portion constitute... | 01/03/2012 |
| 8042226 | Caster with weight transferring tab The invention consists of a caster comprises a yoke having a weight transferring tab and a wheel with groove for receiving the tab. Preferably, the yoke and wheel are made out of plastic, and in some embodiments two different types of plastic. A tab and groove helps... | 10/25/2011 |
| 8015664 | Twin-wheel caster The invention relates to a twin-wheel caster provided with a housing containing a journal opening on a top side thereof, which is oriented in a substantially vertical direction for receiving a pivot connecting a roller to a furniture or another object, a shaft-shape... | 09/13/2011 |
| 7950108 | Castor that is braked and positioned simultaneously A castor includes a suspension unit, a castor body, a wheel unit, and a brake unit. The suspension unit includes an upright fixing bolt and a locking member. The wheel unit includes two rollers. The brake unit includes a positioning block, a sliding block, a biasing... | 05/31/2011 |
| 7937805 | Castor that is braked solidly and stably without producing vibration A castor includes a castor body, two rollers rotatably mounted on the castor body and each having an annular toothed locking section, a locking member movably mounted on the castor body and having two locking flanges each having a toothed engaging portion, and a bra... | 05/10/2011 |
| 7546662 | Caster with weight transferring tab The invention consists of a caster comprises a yoke having a weight transferring tab and a wheel with groove for receiving the tab. Preferably, the yoke and wheel are made out of plastic, and in some embodiments two different types of plastic. A tab and groove helps... | 06/16/2009 |
| 7506405 | Quad-caster carriage with forklift attachment A carriage including an articulated caster is disclosed. The carriage supports a load and includes a frame with a load-supporting section, base sections, and a linkage that permits relative pivotal movement therebetween. The linkage includes a transverse section tha... | 03/24/2009 |
| 7441786 | Convertible low profile roller and support base A low profile roller includes a wheel mounted on a hollow hub and having a roller ball mounted within the hollow hub. The roller is configured to function in a first, low profile operating mode when the roller ball is in contact with a support surface and in a secon... | 10/28/2008 |
| 7318628 | Multiple directional wheel A multiple directional wheel includes a frame having a central hub rotatable about a main axis, a plurality of roller supports radially spaced from the central hub, and a plurality of rollers evenly spaced around the circumference of the wheel and rotatably mounted ... | 01/15/2008 |
| 7293790 | Omni-directional toy vehicle The invention relates with the omni-directional toy vehicle that can move in all directions of forward, backward, rotational, left and right movement by driving manually the omni-directional wheels installed at the vehicle and combining their rotational directions. ... | 11/13/2007 |
| 7258353 | Stroller having front wheel positioning device A stroller includes a main frame, a pedal, a front wheel frame, and a positioning device. The positioning device includes a lower cover, an upper cover, a rotation knob, and a locking rod. Thus, the front wheel frame is locked to and unlocked from the main frame by ... | 08/21/2007 |
| 7210690 | Direction-limiting device for stroller A direction-limiting device for a stroller includes a mounting seat, a wheel assembly, and a direction-limiting device. The mounting seat includes a base coupled to a frame of a stroller. The wheel assembly includes a frame having a positioning hole. The direction-l... | 05/01/2007 |
| 7201243 | Storage carts Storage carts for the storage of pallets and other loads that may be moved between an open position into an aisle for access to the load and a closed position out of the aisle when desired. ... | 04/10/2007 |
| 7200895 | Castor for furniture or the like A castor includes a body, a wall of a rotary bearing, a wheel including an orifice, a rotary shaft, elements for mounting the shaft to co-operate with the bearing wall, the latter having a first bearing wall portion of tuning-fork-shape defining a slot between two l... | 04/10/2007 |
| 7175192 | Foldable bicycle A foldable bicycle includes a frame. A first foldable device is connected to a top tube of the frame so as to fold a front wheel together with a head tube and a handlebar backward at the first foldable device such that the front and rear wheels are located parallel ... | 02/13/2007 |
| 7159278 | Caster A caster for providing rolling support including a spring-loaded mount. The caster may be substantially concealed in the bottom edge of a hinged, swinging door, and generally located proximate to the free vertical edge of the door. An elongated spring plate is provi... | 01/09/2007 |
| 7150070 | Hubless caster A hubless caster assembly includes a caster body and at least one wheel, the wheel comprising a toroidal member having a bearing race, and a complementary bearing race supported by the caster body. Bearing elements in the races support the wheel in free rotation. Th... | 12/19/2006 |
| 7146680 | Caster for vacuum cleaner and vacuum cleaner having the same A caster structure for a vacuum cleaner is provided which allows the main body of the vacuum cleaner to be stably positioned at an incline. The caster structure is rotatably supported on a front portion of a bottom surface of the main body of the vacuum cleaner, and... | 12/12/2006 |
| 7146683 | Articulated caster An apparatus for supporting an object includes a base assembly and at least three wheels pivotally attached to the base assembly. A pivot arm includes a flange plate at an upper end for attachment to the object. An opposite lower end of the pivot arm includes a univ... | 12/12/2006 |
| 7128494 | Method and apparatus for securing a caster wheel An integrally formed caster socket is provided in a tubular framing member for a merchandising display or the like. The framing member has aligned stem receiving holes with the upper hole being on an outwardly domed frusto-conical shaped area and the lower hole is o... | 10/31/2006 |
| 7086120 | Caster for shopping and transport trolleys A caster for shopping and transport trolleys which are suitable for conveyance on travelators, includes a wheel fork provided with fork arms and carrying an axle body having a round cross-section and extending through a hub which is arranged between the fork arms an... | 08/08/2006 |
| 7083175 | Front fork swivel control structure of a jogging stroller A front fork swivel control structure used in a jogging stroller is disclosed to use a button to control the position of a spring-supported locking shaft, for enabling the locking shaft to be selectively shifted between the locking position to lock the front fork to... | 08/01/2006 |
| 6840359 | Wheel system with side wheels for luggage A dual wheel assembly is provided at corners of an item of luggage to facilitate pulling of the luggage in various directions by means of a handle such as a telescopic handle for the luggage. ... | 01/11/2005 |
| 6757936 | Wheel of traveling structure Problems in a conventional wheel of a traveling structure are solved, which in a traveling toy, the lateral movement cannot be performed reducing a game fascinating aspect and it is difficult to differentiate the toy from other traveling toys, and when a field is fu... | 07/06/2004 |
| 6748623 | Chair caster A chair caster in the invention mainly includes a wheel holder, a spindle, a wheel axle, two wheel bodies, two shake-proof washers and two caps. Each of the two wheel bodies is provided with a recessed chamber disposed in an inner side thereof and capable of being f... | 06/15/2004 |
| 6662404 | High load bearing central-braking caster A high-load, high-performance, twin-wheeled central-braking caster for a bed is provided having two wheels each comprised of an aluminum core disc and an annular cylindrical flange. The inside of the flanges are covered with elastomeric material in order ... | 12/16/2003 |
| 6637072 | Castored base for an office chair A castored base (18) for an office chair includes a plurality of radially extending legs (300), each leg having a socket or sleeve (308) fixed thereto adjacent an outer end thereof. A castor (302/402) is connected to each socket or sleeve (308), each cast... | 10/28/2003 |
| 6612658 | Trolley cart wheel-axle assembly A heavy duty wheel-axle assembly for industrial trolley carts in which wheel assemblies are mounted at either end of an axle, an inner bearing race of each wheel positively non-rotationally secured to the axle by interengagement of a non-round shaped posi... | 09/02/2003 |
| 6568031 | 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 the particular piece of furniture. Within the housing is a p... | 05/27/2003 |
| 6561327 | Wheel system with side wheels for luggage A dual wheel assembly is provided at each corner of an item of luggage to facilitate pulling of the luggage in any direction by means of a handle such as a telescopic handle of the luggage.... | 05/13/2003 |
| 6454065 | Wheel rack improvement of a trolley suitcase A wheel rack improvement of a trolley suitcase includes a pair of corner seats and a central seat secured to the lower portion of the suitcase. The corner seats each has a main prop and subordinate prop rotatably secured therein and overlapped each other.... | 09/24/2002 |
| 6449801 | Add-on front wheel castors for jogging stroller A set of add-on front castors or casters, configured for attachment to a conventional three wheeled jogging stroller. The add-on front castor set includes a crossbar with a first crossbar end, a second crossbar end and a mid-crossbar. A first castor mount... | 09/17/2002 |
| 6152539 | Fixing device for wheel seats of a baby stroller A fixing device for wheel seats of a baby stroller engaged and fixed each with/on one of the wheel seats, it has a fixing rod secured on the bottom of a foot. The fixing rod has one of its ends protruded down and out from a pipe mouth of the foot, the end... | 11/28/2000 |
| 5875518 | Castor A castor comprises a fork (10) carrying an axle (11) which extends through an aperture in both limbs (12 and 13) and by which a single wheel comprising two discs (14 and 15) is mounted on the fork (10). A roller bearing (22) is mounted on the axle (11). E... | 03/02/1999 |
| 5815885 | Caster structure for cases A caster structure for cases including a coupling frame and a plurality of rollers. The coupling frame is comprised of a curved plate and two protective covers extending from the lateral edges of the bottom side of the plate such that they define a cleara... | 10/06/1998 |
| 5568671 | Caster assembly with integral plastic stem and horn and with removable axle lock cap An all-plastic, swivel caster assembly has horn and stem molded as a homogeneous unit of plastic. A wheel of molded plastic or plastic-rubber combination, supports the assembly. In one version, the horn sidewalls have fingers forming keyhole-shaped slots ... | 10/29/1996 |
| 5406675 | Flutter free dual wheel caster assembly An improved dual wheel caster assembly is provided having a limited slip frictional clutch to create rotational coupling between the two wheels, but with sufficient slippage to allow adequate directional maneuverability. The caster has improved resistance... | 04/18/1995 |
| 5371921 | Caster brake A caster for supporting an object on wheels is provided with a brake that is operable between engageable and disengageable positions. The brake alternatively restricts and permits rotation of the caster wheel relative to a moveable swivel element. The bra... | 12/13/1994 |
| 5371922 | Safety device for baby walker The present invention relates to a safety device for a baby walker which has a main wheel and an auxiliary wheel. By using a main wheel lock plate and a telescopic pipe, a ratchet on the main wheel can be prevented from blocking by a lock block under norm... | 12/13/1994 |
