Magician Harry Houdini patented a "Diver's Suit" enabling the wearer to "quickly divest himself of the suit while being submerged and to safely escape and reach the surface of the water."
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| Number | Title | Issue Date |
| 7547030 | Support section structure for a swing arm A support section structure for a swing arm provides a well-balanced state for the weight of the vehicle in a widthwise direction and for efficiently increasing the rigidity of a vehicle body frame without inviting a significant increase in the weight of the vehicle... | 06/16/2009 |
| 7429055 | Cycling device A cycling device comprising a frame a plurality of pedals a plurality of wheels coupled to said frame, and a harness coupled to said frame wherein the harness allows a user to be coupled to said frame. In this case there can be for example, two driven wheels which a... | 09/30/2008 |
| 7364000 | Suspension apparatus of vehicle The invention provides a suspension apparatus of a vehicle comprising a base end portion of a swing arm pivotally attached to a vehicle body so as to freely oscillate, and a wheel which is rotatably supported to a leading end portion of the swing arm. A first link i... | 04/29/2008 |
| 7314220 | Suspension system for a powered wheelchair A variable stiffness suspension system is provided for a wheelchair. The wheelchair has a frame and at least one wheel coupled to the frame for generally vertical movement relative to the frame. At least one sensor is provided for sensing an operating condition of t... | 01/01/2008 |
| 7267351 | Frame assembly for a bicycle A bicycle including a frame having a main frame portion and an articulating frame portion pivotally mounted to the main frame portion and carrying a rear wheel of the bicycle. A shock absorber preferably is operably connected between the main frame portion and the a... | 09/11/2007 |
| 7234718 | Bicycle frame A two-piece bicycle frame pivotably attached together at a pivot point with a biasing mechanism adjacent to the point of attachment. The bias mechanism bears an angle of between 30° to 60° relative to true horizontal. Each frame section has a relative plane which ... | 06/26/2007 |
| 7210695 | Suspension systems A suspension system for a vehicle with a chain driven rear wheel includes: a rear suspension assembly and chain driven transmission arrangement that offers very high levels of anti-brake lift and anti-squat and does so consistently through a large range of rear susp... | 05/01/2007 |
| 7178621 | Motorcycle The invention relates to a motorcycle comprising a frame, in which at least an engine is mounted; a front fork pivoted to the frame, in which at least a front wheel is mounted; a rear fork pivoted to the frame, in which at least a rear wheel to be driven by the engi... | 02/20/2007 |
| 7121570 | Rear suspension for a motorcycle A rear single-sided swingarm suspension for a motorcycle includes a single-sided swingarm that has an axle bearing assembly pivotably connected to the rearward end thereof for swinging motion in a plane parallel to the plane of travel of the swingarm. A cantilevered... | 10/17/2006 |
| 7104346 | Power wheelchair A mid-wheel drive power wheelchair for use by handicapped and disabled persons is provided having a frame, a seat supported by the frame, a pair of drive wheels supported on the frame under the seat, a motor for causing rotation of the drive wheels, a battery for su... | 09/12/2006 |
| 7052422 | Motorcycle chain tension adjuster A tension adjusting device is attached to an axle member of a driven wheel of a vehicle and is coupled to a forked frame member to adjust tension of a chain. The tension adjusting device has two tension adjusters joined to each side of the axle member that engages a... | 05/30/2006 |
| 7040429 | Wheelchair suspension A wheelchair suspension having plurality of pivoting linkages to lift and retract a front castor assembly to facilitate traversing an obstacle or rough terrain. In this regard, a wheelchair suspension having a frame member and at least one a pivoting assembly is pro... | 05/09/2006 |
| 6910702 | All-suspension bicycle frame with isolated drive gear A frame assembly for a two-wheel vehicle includes a front wheel fork and chainstays. Between the front wheel fork and the chainstays, the frame assembly further includes a saddle tube, a crank housing, and a lower tube connecting the crank housing to a steering tube... | 06/28/2005 |
| 6505847 | Frame with built-in suspension The present invention is directed to a suspension mechanism that is built into the rigid frame members of a vehicle such as a motorcycle to provide a softer ride while preserving the clean look of the rigid frame. The vehicle has a wheel mount for a wheel... | 01/14/2003 |
| 6485043 | Front suspension structure for motorcycle A front suspension structure is provided having an axle support arm for connecting a front wheel axle and a front fork lower end that is light in weight and has high rigidity. An axle support arm has a substantially chevron shape when viewed from the side... | 11/26/2002 |
| 6349784 | Motorcycle provided with a steering hub The invention provides a motorcycle with hub steering, the axle of the hub being fixedly connected to first support arms and being disposed in such a manner that it can turn with respect to the hub body. Second support arms are arranged in such a manner t... | 02/26/2002 |
| 6168178 | Convertible wheelchair and a method for converting a wheelchair chassis A wheelchair comprises a frame and a chassis. The frame has two side frame members. The side frame members include upper frame members. The upper frame members have first and second mounting positions upon which the chassis may be mounted. The chassis has... | 01/02/2001 |
| 6131934 | Bicycle rear suspension system A suspension system for mounting a rear wheel on a rigid bicycle frame comprises a rear swing arm assembly pivotally mounted on the main frame member, and a shock absorbing arm assembly having a first end pivotally mounted on the rear swing arm assembly a... | 10/17/2000 |
| 5851019 | Wheel chair with independent suspension A wheel chair has a rear swing axle pivotally connected to the seat frame and a spring shock absorber controls the relative movement therebetween. A front suspension is connected to the seat frame separately from the rear suspension and includes a floatin... | 12/22/1998 |
| 5725227 | Suspension system for a bicycle A bicycle frame assembly includes a main frame portion having a steering tube at its forward end and a pedal crankset bracket at its rearward end. An intermediate frame portion is pivotably connected to the main frame portion near the steering tube and ex... | 03/10/1998 |
| 5720491 | Light-weight cycle suspension This invention provides a low mass wheel support means for bicycles and motorcycles which maintains motion of the wheel in a constant plane relative to the support frame, without rigid constraint of the axle, in as much as the axle is free to rotate about... | 02/24/1998 |
| 5451071 | Bicycle frame A bicycle frame comprises a tapered nose portion having a front sleeve adapted to receive a front wheel-mounting member, a center portion having a tapered upper arm adapted to support a seat and a tapered lower arm having a bottom sleeve adapted to suppor... | 09/19/1995 |
| 5390947 | Bicycle wheel mount A bicycle comprises a wheel-supporting member having an annular sleeve portion, a stub wheel spindle having a journal portion supported for rotation in the sleeve portion by thin wall, large diameter angular contact bearings, a wheel attachment portion ex... | 02/21/1995 |
| 5007497 | Arm support device for a rotating element The rotary axle of the support arm device is adapted to be maintained in position rigidly and in adjustable manner at the free end of the arm and the free end of the arm comprise plane and generally axial bearing surfaces adapted to contact corresponding ... | 04/16/1991 |
| 4782908 | Supporting device for a vehicle driving wheel Oscillating supporting device for the driving wheel of a vehicle comprising an arm parallel to the median plane of the wheel and pivotally mounted on the vehicle chassis trough a transverse shaft disposed at one end of the arm, by means of two bearings di... | 11/08/1988 |
| 4638881 | Motorcycle, and body structure therefor A body structure for a motorcycle with a front wheel and a rear wheel, including a body frame assembly having an engine mounted thereon and having vertically swingably joined thereto a front leading arm for supporting the front wheel and a rear trailing a... | 01/27/1987 |
| 4629205 | Motorcycle front fork assembly A motorcycle front fork assembly comprises substantially parallel fork legs (15), each leg being connected to an articulated linkage (16). The articulated linkage comprises a telescopic member (19) concentric with or adjacent to each fork leg (15) and axi... | 12/16/1986 |
| 4627632 | Cycle suspension system A suspension system for the front wheel of a motorcycle having a frame assembly for supporting the suspension system, which includes a pair of upright bars having upper and lower ends and adapted to rotatably mount a wheel between their lower ends, a brac... | 12/09/1986 |
| 4585245 | Front fork shock slider for motorcycles and the like A shock absorbing mechanism for wheels for absorbing horizontally-applied shock loads experienced by the wheel whereupon the axle and hub of the wheel are permitted to move rearwardly, or "slide", upon the application of a relatively substantial horizonta... | 04/29/1986 |
| 4553622 | Supporting arm assembly for a driving wheel of an automotive vehicle An oscillating supporting arm assembly for the driving wheel of a motorcycle, includes an arm mounted to oscillate angularly about a connecting shaft of the motorcycle and cooperating with a suspension assembly between the arm and motorcycle, the wheel be... | 11/19/1985 |
| 4444406 | Front wheel suspension for motorcycles A front wheel suspension for motorcycles including a pair of first linkages each having link members for interconnecting an upper fork pivotably supported on a motorcycle body and a lower fork supporting a front wheel thereon, and a pair of second linkage... | 04/24/1984 |
| 4433851 | Front suspension system for motorcycles A front suspension system for a motorcycle, including an upper fork member supported by a vehicle body frame, a lower fork member which supports a front wheel and a link mechanism connecting between the upper and lower fork members. The system includes a ... | 02/28/1984 |
| 4433850 | Front wheel suspension system for motorcycles A link type front wheel suspension system comprising an upper fork, a lower fork, links connecting between the upper fork and the lower fork, a shock absorber for a front wheel, and a transmission system for transmitting a load received by the front wheel... | 02/28/1984 |
| 4431204 | Front wheel suspension system for motorcycles A front wheel suspension system for motorcycles which cooperates with a front wheel suspension including an upper fork supported by a motorcycle frame and a lower fork supporting the front wheel. The system includes a rotary lever type damper operatively ... | 02/14/1984 |
| 4236726 | Hydraulic suspension system for an individual vehicle wheel An improved suspension system for a vehicle wheel, and particularly for single track vehicle wheels as found in motorcycles and the like. The invention comprises an improvement in a vehicle having a wheel mounted for rotation upon a transversely extending... | 12/02/1980 |
| 4190263 | Wheelchair with shock absorber The invention consists of a device which can be mounted on a conventional wheelchair to provide shock absorbing qualities to the wheelchair. Each wheel on the wheelchair is removed from its standard mounting position with a shock absorbing device of this ... | 02/26/1980 |
| 4186936 | Front suspension, in particular for a vehicle having two wheels and vehicle provided with said suspension The suspension comprises a steering framework mounted on the frame of the vehicle. An arch-shaped pivotal suspension arm carries at one end the spindle of the front wheel of the vehicle and extends around the front wheel. The pivotal arm is pivoted to the... | 02/05/1980 |
| 4180280 | Front-wheel suspension for two- or three-wheeled vehicles A front-wheel suspension is disclosed, especially for two-wheeled vehicles such as motor-assisted bicycles and motor-scooters, in which the usual swinging front fork is replaced by a single goose-necked stiff arm capable of overhangingly carrying the vehi... | 12/25/1979 |
| 4133555 | Hydraulic suspension system for vehicle wheels An hydraulic suspension system for vehicle wheels including an upright hydraulic cylinder and an inverted hydraulic cylinder mounted on each side of the vehicle axle, the piston rod of each hydraulic cylinder extending to said axle. Hydraulic fluid transm... | 01/09/1979 |
| 3964765 | Bicycle A bicycle with a frame suspended on the wheels by telescoping shock absorbers that permit large vertical movements of the wheels when they hit bumps without producing large vertical movements of the bicycle frame, so that pedaling can continue uninterrupt... | 06/22/1976 |