Quotables
"To place a man in a multi-stage rocket and project him into the controlling gravitational field of the moon where the passengers can make scientific observations, perhaps land alive, and then return to earth--all that constitutes a wild dream worthy of Jules Verne. I am bold enough to say that such a man-made voyage will never occur regardless of all future advances."
Lee deForest, American radio pioneer ; 1957
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7437801 | Caster assembly and shelf system for use on a collapsible cart Disclosed is a lightweight caster assembly and modular shelf system for use on an existing collapsible foldable cart with four wheels. ... | 10/21/2008 |
| 7353566 | Adjustable wheel assembly An improved wheel assembly comprises a caster fork, a caster wheel rotatably supported by the caster fork, and a caster swivel post defining an axis about which the caster fork rotates. The caster swivel post is being adapted to rotate about a pivot axis within a cy... | 04/08/2008 |
| 7308730 | Base member for swivel caster A base member for swivel caster comprises a fixed base, a rotation base and a hollow staff. The fixed base includes a ring member, and a plurality of first raceways lathed in an inward surface of the ring member. A support cavity is defined through a center of the r... | 12/18/2007 |
| 7246978 | Nut retaining apparatus and nut holder A body comprising a nut retaining apparatus mounted thereon for fastening a bolt to the body. The bolt is inserted into a bolt insertion hole at an end surface of the body from a direction inclined with respect to a direction tangent to the body. The nut retaining a... | 07/24/2007 |
| 7231690 | Furniture glide with tubular flanged grommet fastener A furniture glide is provided for mounting on a terminal end of a furniture leg. The furniture glide includes a slider having an upper surface and a generally arcuate lower surface for engaging a supporting surface. A generally tubular fastener extends from the uppe... | 06/19/2007 |
| 7219956 | Convertible stool A convertible stool is interchangeable between a utility function which has a seat movable up and down and has casters as feet at the end of legs connected with the seat through an upstanding member. In a second use, the casters are replaced by feet to give stabilit... | 05/22/2007 |
| 7213815 | Mechanic's creeper A mechanic's creeper (10) includes a pad (12) supported between a plurality of side rails (14) by a plurality of crossbars (15). The side rails (14) are of tear-shaped cross section such that no sharp edges are provided adjacent to... | 05/08/2007 |
| 7207084 | Self-orienting caster for moving pieces of furniture and the like A self-orienting caster, constituted by at least one wheel, which can rotate on a shaft driven horizontally through the seat of a support provided with a vertical recess open upward and offset axially with respect to the shaft and in which a caster pivoting pivot ro... | 04/24/2007 |
| 7165815 | Wheel assembly for garden shears A wheel assembly includes a main body, two wheels, two positioning shafts, and two retaining rods. In practice, the retaining portion of each of the retaining rods is urged on the positioning plates of the respective positioning shaft to position the locking portion... | 01/23/2007 |
| 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 |
| 7065828 | Caster assembly with drawn kingpin rivet A caster assembly including a unique drawn kingpin rivet formed of stainless steel or other material of appropriate toughness which compressively holds the components of the caster assembly together. ... | 06/27/2006 |
| 6976816 | Combination lock washer and spindle bearing assembly The present invention relates to a connection between a spindle and a bearing assembly to retain the bearing assembly on the spindle. A combination lock washer and spindle bearing assembly is provided to include a spindle, thrust washer, lock washer and nut in which... | 12/20/2005 |
| 6944910 | Caster wheel assembly with anti-flutter control A caster wheel assembly for a wheeled device, such as a wheelchair, includes a housing suitable for connection to a wheeled device, a caster fork configured to mount a caster wheel for rotation, and a caster bolt connected to the caster fork and inserted into the ho... | 09/20/2005 |
| 6932314 | Sleeves for use in systems for supporting platform-like objects on casters and posts Sleeves for use in systems for supporting platform-like objects on casters and posts and described. The sleeves support caster-and-post junctions and inhibit deformation of the stems of the casters and the ends of posts in directions radially outward from the longit... | 08/23/2005 |
| 6931692 | Kingpin-free caster assembly A kingpin-free caster in which a plate is assembled onto a yoke with ball bearings therebetween and the plate is deformed in place upon the yoke to capture the ball bearings between the yoke and plate and couple the yoke and plate together against removal. ... | 08/23/2005 |
| 6886216 | Caster leg assembly with adjustment locking means The caster leg assembly has a slidable collar mounted on a shank that is threaded onto a stud fixed within a hollow table leg. A resiliently deformable ring is positioned between a shoulder on the shank and an inwardly turned end of the leg. A locking nut is threade... | 05/03/2005 |
| 6810561 | On a wheel of a rack A wheel of a rack consists of a wheel support, a sleeve inserted into a tube of a rack, a supporting member joined to both the sleeve and a top of the wheel support, and a screw projecting from the supporting member and screwed into the sleeve; a step-shaped portion... | 11/02/2004 |
| 6626404 | Chair base A chair base includes a rigid base member having a plurality of elongate tubular leg members disposed angularly around and radiating outwardly from a central hub. Each leg member adjacent an outer free end thereof has a hub structure defining a through ve... | 09/30/2003 |
| 6293569 | Trundle for making quick-assemble mobile shopping bag A disposable mobile shopping bag that can be readily assembled, and can bear loads well is. The mobile shopping bag is composed of an ordinary shopping sack, a disposable platform insert and press-fitting wheel assemblies. When opened the sack accommodate... | 09/25/2001 |
| 6212733 | Hub and wheel assembly with automatic moving direction adjustment mechanism A hub and wheel assembly enabling the moving direction of wheels of a vehicle to be adjusted instantly as the exerted pushing force changes direction comprises a wheel mount having wheels mounted thereon, and a swivel base assembly mounted on stroller leg... | 04/10/2001 |
| 6115882 | Caster with a shaped stem A caster with a stem extending upwards from a base and defining a stem axis and wherein the stem has a hole having a circumference defined by an internal threading for fastening to a correspondingly externally threaded fastener; a bearing for interconnect... | 09/12/2000 |
| 6047439 | Caster wheel with releasable bearing assembly An inexpensive and easily replaceable caster wheel assembly is provided for use with a cart, dolly or other similar product. The caster wheel assembly includes a mounting flange, a bearing assembly comprising inner and outer bearing races disposed within ... | 04/11/2000 |
| 5943735 | Shopping trolley, a castor for a shopping trolley and a kit of parts for fitting to such a castor A steering assistance device for a castor comprises a cam portion (39) having a lobe (41) which is fixed to the bottom of the fixing bolt of the castor and which is surrounded by a closed portion (43) of a capture device (42). The lobe (41) is engaged in ... | 08/31/1999 |
| 5881980 | Leg assembly An adjustable leg assembly comprises an outer tube and an inner tube subassembly. The inner tube assembly comprises an inner tube, a floor support at one end of the inner tube, an expandable bushing at an opposite end of the inner tube, a rod extending th... | 03/16/1999 |
| 5813090 | Caster with D-shaped stem A caster with a stem generally cylindrical over most of its external circumference, but provided with at least one flat face cut through the cylinder external circumference so as to provide the cylinder with a slight "D" shaped cross section. The stem is ... | 09/29/1998 |
| 5727285 | Caster wheel biasing mechanism A caster wheel mounting mechanism having a shaft member to which the caster wheel is coupled, the shaft member having a generally circular cross section with a flatted portion, a mounting member having an opening within which the shaft member is pivotally... | 03/17/1998 |
| 5598605 | Wet/dry utility vacuum cleaner with a wheel mount A utility vacuum cleaner tool caddy for utility vacuum cleaner drums as well as an axleless wheel mount are disclosed. The tool caddy has rear and front wheels with integral rear and front bumpers at least partially overlying the rear and front wheels. Th... | 02/04/1997 |
| 5594974 | Releasable caster A releasable caster for use with a moveable structure having a bottom wall wherein the caster has a swivel connected yoke and stem with the yoke supporting a plastic wheel. The stem includes a manually operable spring biased rod that has an indentation be... | 01/21/1997 |
| 5408723 | Swivel wheel assembly A swivel wheel assembly which is easy to assemble and convenient for use includes a tube plug inserted into a tube leg, a pivot pin inserted into the tube plug and a rotary member rotatably secured on the pin. The rotary member supports a shaft and pair o... | 04/25/1995 |
| 5390394 | Detachable front wheel assembly for a stroller A front wheel assembly for a stroller includes a frame attaching member and a wheel attaching member. The frame attaching member includes a sleeve adapted to be securely attached to a front leg of a stroller and defining a through hole with upper and lowe... | 02/21/1995 |
| 5347681 | Releasable fifth wheel caster for skateboards A releasable fifth wheel for use with a skateboard having an upwardly sloped tail portion cantilevered out beyond the rear race which includes a caster with swivel connected yoke and stem with the yoke supporting a plastic wheel. The stem includes a manua... | 09/20/1994 |
| 5285656 | Portable cooler chest with expandable wheels and collapsible extension A portable cooler chest is disclosed having a collapsible storage bin for nonperishable items and wheels specially adapted for rolling on sand or soft soils. The collapsible storage bin includes foldable side panels and may be integrated with or separable... | 02/15/1994 |
| 5191675 | Caster mechanism for carriage A caster mechanism for a carriage having foot rods a, b includes a stopper mechanism 3 fixedly secured to a lower end of each foot rod. A wheel support mechanism 2 is rotatably positioned below the stopper mechanism, and includes an engagement bracket 1 e... | 03/09/1993 |
| 5167048 | Caster wheel retention device A caster retention device is disclosed that supresses flutter or shimmy of a caster wheel and that is easily adjustable. The device includes a caster stem receiving chamber in which a bushing is disposed. The bushing receives a caster stem assembly that i... | 12/01/1992 |
| 5144717 | Double wheel caster for being rotatably mounted on a leg of a transport carrier A double wheel caster for being rotatably mounted on a leg of a transport carrier includes a support rod having a center portion and opposite first and second end portions. The center portion of the support rod is rotatably positioned within an opening lo... | 09/08/1992 |
| 5143500 | Snap engaging fastener system for providing rotary motion Disclosed is a fastener system comprising a male or stud element with a split or bifurcated head, forming two prongs, that fits inside a female or socket sleeve. Inside the socket sleeve is an internal annular ring of a smaller diameter. The stud prongs d... | 09/01/1992 |
| 5062178 | Wheel unit for a slidable infant chair This invention relates to a wheel unit for a slidable infant chair. The characteristic of this invention is in that there is a rod cap positioned at the upper part of the wheel unit. The rod cap has a hollow for receiving in a rod. There are two opposite ... | 11/05/1991 |
| 5052075 | Apparatus and method for securing a caster to an object having a hole An apparatus for securing a caster to an object having a hole with interior walls has a tubular body with upper and lower ends, the lower end being adapted to connect to a caster and the upper end being split and defining at least two upwardly extending f... | 10/01/1991 |
| 4969232 | Adjustable caster wheel assembly An improved caster wheel assembly for a wheelchair or the like includes adjustable bearing components for variably resisting swivel motion of a caster wheel to prevent undesired wheel flutter. The caster wheel assembly includes a wheel fork unit having a ... | 11/13/1990 |
| 4953257 | Caster wheel The wheel according to the invention is characterized by the fact that it includes a molded rim inside the bore of which is resiliently engaged a brace molded from a resiliently deformable material and a metallic axis forcibly crimped inside a bore of sai... | 09/04/1990 |
