Did You Know...
...that several people are credited with the invention of the flush toilet? Most people have heard of Thomas Crapper (1837-1910), the sanitary engineer who invented the valve-and-siphon arrangement that made the modern toilet possible. Another claimant to "the throne" was British inventor Alexander Cumming who patented a toilet in 1775. Then there's a nameless Minoan (a native of ancient Crete) who lived 4,000 years ago who supposedly was ahead of his time and created the first flush toilet!
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| Number | Title | Issue Date |
| 8181976 | Anti-binding spring mounting apparatus for vehicle suspension On a jackscrew used to adjust spring tension on the suspension of some vehicles, a bearing is provided to allow one or both spring cups (and hence one or both ends of the spring) to rotate freely relative to each other about the axis of the spring. This relieves und... | 05/22/2012 |
| 7648150 | Shock-absorbing device for stroller A shock-absorbing device for a stroller includes: a wheel mounting seat including a sleeve part having first and second sides, and an extending part extending outwardly from the first side of the sleeve part; a shock-absorber seat having a first end portion that is ... | 01/19/2010 |
| 7387307 | Suspension system A suspension system includes a lower arm having an I-shaped cross section. A coil spring seat portion is formed on the lower arm for supporting a coil spring. A center of stiffness of the lower arm is so located with respect to a centerline of load applied to the lo... | 06/17/2008 |
| 7367573 | All terrain vehicle A front frame portion of an underframe which constitutes a lower portion of a vehicle body frame is formed in a triangular shape, and, at the same time, the front frame portion of the underframe is formed in a peaked shape in a plan view. The underframe is integrall... | 05/06/2008 |
| 7338040 | High retention strength jounce bumper assembly A jounce bumper assembly is provided including a cup-shaped member adapted to be mounted to a vehicle. A spacer formed of an appropriate engineered material is mounted within the cup-shaped member and a jounce bumper is mounted to the spacer. The cup-shaped member i... | 03/04/2008 |
| 7334659 | Drive unit suspension structure, mainly for rear engine bus The invention relates to a transmission suspension structure for a rear engine vehicle, mainly bus, where the drive engine (3) and the gearbox (4) are built uniaxially to form a rigid transmission unit (2), which has suspension brackets (8, 9... | 02/26/2008 |
| 7314221 | Driver controlled wedge and track bar adjustors A driver controlled wedge and track bar adjustor for a race car. A controller located inside the driver's compartment of the race car is coupled to a drive which is operatively coupled to adjusting rods. The controller may be configured to initiate a predetermined a... | 01/01/2008 |
| 7249776 | Opposing spring resilient tension suspension system A suspension and method applies the unsprung weight of the wheels and axles to reduce the motion of the sprung weight of chassis. The suspension has a load bolster supporting the sprung weight at a ride height and a rebound member between the wheel axle support and ... | 07/31/2007 |
| 7243934 | Multi-link rear suspension system A knuckle is minimized in size to be located in an internal space of a rear wheel. An upper arm is disposed lower than a conventional double wishbone type and one end of the upper arm is secured to the knuckle. A shock absorber couples at a lower end thereof to the ... | 07/17/2007 |
| 7219909 | Front suspension device for automotive vehicle In a front suspension device for an automotive vehicle, in which wheel support members of right and left front wheels are coupled with each other via a steering unit, outer ends of two lower arms are pivotally attached to the wheel support members, and inner ends of... | 05/22/2007 |
| 7150463 | Wheelchair capable of absorbing road shock A wheelchair includes a chair frame, two suspension arms, two clutches, two drive wheels, two shock absorbers, and two limiting units. The chair frame includes two lateral frame parts. Each of the suspension arms is connected pivotally to the chair frame adjacent to... | 12/19/2006 |
| 7137636 | Vehicle suspension lift spacer The vehicle suspension lift spacer of the present invention fits between the coil spring and the upper spring receiver of the front suspension. It is made by welding stock flat and cylinder stock material, making it cheap to make and sufficiently rugged for the desi... | 11/21/2006 |
| 7097187 | Suspension system for a motor vehicle An independent suspension system is provided for coupling a set of wheels to a vehicle body structure. The system includes independently pivotable swing arms, a shock absorber assembly, a joining arm and tie rods. The swing arms are attached to the vehicle body stru... | 08/29/2006 |
| 7032913 | Opposing spring resilient tension suspension system A suspension and method applies the unsprung weight of the wheels and axles to reduce the motion of the sprung weight of chassis. The suspension has a load bolster supporting the sprung weight at a ride height and a rebound member between the wheel axle support and ... | 04/25/2006 |
| 7021641 | Suspension structure for wheelchair A suspension structure for a wheelchair generally includes movable arm that serve to connect driving wheels with frame of a wheelchair, sliding unit is further provided for enabling the movable arm to movably connect with a front cantilever of the wheelchair. By suc... | 04/04/2006 |
| 6959936 | Vehicle suspension system A vehicle suspension system couples an axle to a vehicle frame so that the axle pivots about a first location with respect to the frame when the axle has a first range of articulation. The axle pivots about a second location with respect to the frame extending later... | 11/01/2005 |
| 6935627 | Coil spring mounting structure for suspension strut A coil spring mounting structure for a suspension strut includes a spring bracket secured to a shock-absorber. The spring bracket has a coupling hole, which is configured to receive a screw threaded end of a coil spring. Nuts are screw-coupled to the screw threads o... | 08/30/2005 |
| 6857626 | Spring element A spring element comprises an insert (1) of a compact material having a rigidity which is higher than that of the material of which the spring element consists, and comprises a part (2) which acts as an additional spring and a part (3) which act... | 02/22/2005 |
| 6854720 | Strut for a MacPherson-type wheel suspension The invention concerns a shock strut for a MacPherson wheel suspension comprising a shock absorber with a body (21) and a rod (22). A coil spring (24) is mounted on a lower spring retainer (23) integral with the shock absorber body (21... | 02/15/2005 |
| 6845996 | Shock absorber for a power wheelchair A shock absorber is installed in a power wheelchair to absorb shocks transmitted from rear wheels of the power wheelchair. The shock absorber includes a bracket, a seat and a suspension device. The suspension device is installed between the bracket and the seat and ... | 01/25/2005 |
| 6808193 | Wheel suspension A wheel suspension with a wheel-guiding strut in provided which includes a helical compression spring, a shock absorber, and a suspension arm, and which is connected to a body and to a wheel. The helical compression spring is preferably made such that it at least pa... | 10/26/2004 |
| 6764085 | Non-contact spring guide A spring guide for maintaining the alignment of a vehicle's suspension coil spring and for reducing the tendency for such springs to buckle. The spring guide is a smooth tube which fits into and slides in an elastomeric bushing mounted to the top bearing plate of a ... | 07/20/2004 |
| 6761372 | Opposing spring resilient tension suspension system A suspension and method applies the unsprung weight of the wheels and axles to reduce the motion of the sprung weight of chassis. The suspension has a load bolster supporting the sprung weight at a ride height and a rebound member between the sheel axle support and ... | 07/13/2004 |
| 6758534 | Mounting element for the wheels of rolling containers A mounting element for the wheels of rolling containers comprises: a load-bearing member rigidly attachable to a bottom edge of a container designed to be rolled along a surface; an arm supporting at least one wheel designed to enable the container to be rolled on t... | 07/06/2004 |
| 6733023 | Suspension A suspension, includes a load-carrying spring having one end indirectly supported via a spring washer by a component of a vehicle body of a motor vehicle and another end indirectly supported via a second spring washer by a wheel support assembly of the motor vehicle... | 05/11/2004 |
| 6702265 | Balanced suspension system A balance suspension system for a vehicle having a body and at least four wheels (FR, FL, BR, BL) independently supported for movement between upper and lower positions relative to the body, the suspension system includes a balance mechanism adapted to su... | 03/09/2004 |
| 6672606 | Suspension for personal mobility vehicle An improved suspension system is disclosed for a personal mobility vehicle comprising an arm assembly pivotably mounted to a fame section. A wheel assembly is connected to the arm assembly. A spring is interposed between the arm assembly and the second fr... | 01/06/2004 |
| 6612553 | Shock strut of McPherson wheel suspension The invention concerns a shock strut for a McPherson wheel suspension comprising a shock absorber with a body (21) and a rod (22). A coil spring (24) is mounted on a lower spring retainer (23) integral with the shock absorber body (21). The shock strut co... | 09/02/2003 |
| 6607201 | Swivel wheel assembly with adjustable shock absorption A swivel wheel assembly includes a wheel axle, and a vehicle wheel rotatably mounted on the wheel axle. A shock-absorbing wheel fork is secured to opposite ends of the wheel axle and includes first and second elongated spaced-apart support arms. A pivot p... | 08/19/2003 |
| 6550796 | Vehicle suspension The invention provides a new method of vehicular suspension, whereby the attributes of greater design freedom, reduction of frontal area, lower center of gravity, increased fuel efficiency, decreased polar movement, increased safety due to improved handli... | 04/22/2003 |
| 6550755 | Arrangement with a helical spring and a support bearing for spring struts A coil spring (1) and support bearing (2) arrangement for suspension struts (3) with a shock absorber, supporting a steering knuckle of an automobile has a rolling-contact bearing (7), with an axis (x); a receiving body (6), arranged below the rolling-con... | 04/22/2003 |
| 6516914 | Integrated vehicle suspension, axle and frame assembly An integrated assembly for large vehicles including independent suspension components, supporting side plates and axle and frame components. Each of the side plates is a weldment in which the main part is a series of metal plates formed by bending a singl... | 02/11/2003 |
| 6446748 | Rear wheel support for ATV A recreational all terrain vehicle has a set of rear wheels attached to a frame assembly with a swing arm. The rear wheels are driven by a flexible transmitter, such as a chain. To tension the chain, a pair of laterally extending bolts are loosened while ... | 09/10/2002 |
| 6408970 | Cab suspension system for terminal tractors The invention is a mechanical suspension system for cab-over tractors, specifically those used in terminal transport having two front cushion dual suspension components on the front pivot area of the cab to tractor frame connection and a single rear cushi... | 06/25/2002 |
| 6390213 | Maneuverable self-propelled cart A maneuverable self-propelled cart having a drive assembly including independently suspended drive wheels for propelling the cart over rough or uneven surfaces. The drive assembly is comprised of a drive wheel carriage having at least two drive wheels. Th... | 05/21/2002 |
| 6371498 | Wheel suspension The present invention is for a device for mounting of wheels so that they may move in a preferably vertical direction at right angle to the wheel shaft. The invention is also standing board for prams having such wheel mounting. At its from end the standin... | 04/16/2002 |
| 6308974 | Suspension system A suspension system 10 has one or more protrusive seating portions 21L;22L, on which a coil spring 13 is situated, and is formed in a partly circumferential portion of a spring seat 14L supporting the coil spring 13, and a tapered surface 23L for preventi... | 10/30/2001 |
| 6293573 | Sliding connection The invention relates to a linear sliding connection (1; 14; 18; 21; 29; 33) between two structural parts (2, 3, 9, 10; 3, 38, 39, 40, 2, 3, 10, 25). Said structural parts can slide back and forth in relation to each other with a damping effect in at leas... | 09/25/2001 |
| 6264221 | Base structure for a mobile access platform A base structure for a mobile access platform includes a chassis (10) having at least two pairs of wheels (12, 16a, 16b), at least a first one of the pairs of wheels (16a, 16b) including a suspension mechanism including, for each wheel, a swing arm member... | 07/24/2001 |
| 6254072 | Spring isolator and jounce bumper for a motor vehicle suspension The present invention provides a combination isolator and jounce bumper. The combination isolator and jounce bumper is disposed on a spring seat of a suspension system and includes a locating member in the form of a projection extending therefrom. The pro... | 07/03/2001 |
