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"The abolishment of pain in surgery is a chimera. It is absurd to go on seeking it...knife and pain are two words in surgery that must forever be associated in the consciousness of the patient."
Dr. Alfred Velpeau, French surgeon ; 1839
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| Number | Title | Issue Date |
| 4909341 | Unmanned articulated vehicle A tracked vehicle of narrow aspect suitable for unmanned operation both in hazardous environments and on routes normally accessible only to pedestrians, comprises two identical vehicle units (1, 2) each having an independently drivable, full width track (... | 03/20/1990 |
| 4878684 | Recumbent bicycle A recumbent cycle whose seat can be quickly repositioned on the frame to provide for adjustable spacing between the seat and the pedal assembly. The seat has a rod which extends rearwardly from the backseat portion thereof at a location near the upper por... | 11/07/1989 |
| 4871183 | Trailer dolly The invention provide an improved trailer dolly and an improved trailer dolly tongue support jack. More specifically, the invention provides a trailer dolly which includes a tongue support jack which is effective and convenient to operate. In the preferre... | 10/03/1989 |
| 4861058 | Disassemblable sulky vehicle A disassemblable three wheeled, sulky vehicle for the handicapped and others desiring assistance has a steerable front wheel drive unit comprising a steering column mounting assembly with a motor driven wheel. A sulky frame assembly supports a pair of tra... | 08/29/1989 |
| 4830388 | Ridable multi-functional wheelchair assembly A ridable multi-functional wheelchair assembly, aside from being used as a general wheelchair, may be converted into a pedicab by connecting a rear wheel thereto; the pedicab may be further converted into a tread wheel by suspending the rear wheel from th... | 05/16/1989 |
| 4830392 | Articulated truck/trailer combination:the drawbar In a cargo-carrying vehicle having a power unit, a first cargo-carrying unit releasably affixed to the power unit, the first cargo-carrying unit not being pivotal on the power unit, and a second cargo-carrying unit releasably and pivotally connected to th... | 05/16/1989 |
| 4828063 | Mount for steering gear box A steering gear box mount includes a resilient member interposed between a motor vehicle body and a steering gear box for allowing movement of the steering gear box. The mount also has a structure for limiting allowed movement of the steering gear box. Th... | 05/09/1989 |
| 4828070 | Apparatus for controlling the shift between two and four-wheel drivings An improved apparatus for controlling the shift between two and four-wheel drivings comprises sensors for detecting the revolution velocities of a propeller and axle shafts, and a calculation unit for calculating a predetermined time duration during which... | 05/09/1989 |
| 4828058 | Hovercraft with improved maneuverability Disclosed is a hovercraft having a pair of air cushions, associated with each air cushion is a rotatable fan which partly produces lifting force and partly propels and maneuvers the craft. The fans are mounted perpendicular to the direction of travel, per... | 05/09/1989 |
| 4828069 | Motorcycle A motorcycle [1; 50] having a front wheel [23] and a rear wheel [5] includes a motorcycle body [4, 2] including an engine [2], the engine [2] having an engine body [6] and a cylinder [6] disposed on a rear portion of the engine body [6] to define a space ... | 05/09/1989 |
| 4828067 | Electronic power assist control steering system A variable assist power steering gear mechanism for vehicles having primary and secondary steering valve portions, the primary portion controlling pressure in a power steering fluid motor, a steering pressure valve that controls the magnitude of the steer... | 05/09/1989 |
| 4826193 | Wheel chair restraint A wheel chair restraint that includes a bracket that attaches to the wall of a hospital hallway at a desired height. The bracket includes an envelope with a top opening and a vertical slot for receiving a T-shape latch. The latch is tethered to the wheel ... | 05/02/1989 |
| 4826198 | Tractor-trailer control apparatus Anti-jackknifing apparatus beneath the fifth wheel of a tractor-trailer vehicle includes a control ring carried rotably by the tractor and coupled to the trailer by interfering vertical projections directed from each of the tractor and the control ring. A... | 05/02/1989 |
| 4826200 | Boat locking device A locking mechanism for connecting the bow of a boat to the staff of a boat-trailer. A horizontal bar is connected at one end of a staff and extends toward the rear of the trailer. This bar has a notch near the rear end. A swinging lock arm is pivotally a... | 05/02/1989 |
| 4825969 | Wide track vehicle A wide track vehicle with improved skid steering by having a chassis (1) supported upon two independently drivable tracks (2) by side support wheels (3) engaged with each track adjacent the outer edges only. Downwardly projecting rubbing strips (11, 12, 1... | 05/02/1989 |
| 4826190 | Dual wheel driven tricycle with a fully enclosed multiple speed drive A pedal powered recumbent tricycle with a fully enclosed drive features an extruded aluminum frame within which the brake cables, steering linkage, and a seventeen speed planetary transmission are housed. Power from a pedal crank assembly is delivered to ... | 05/02/1989 |
| 4823852 | Tree feller-buncher A four track vehicle especially adapted for logging on steep slopes includes a running unit and an upper unit. The upper unit is articulated relative to the lower unit to maintain a center of gravity within the four tracked pods upon which the running uni... | 04/25/1989 |
| 4823898 | Mount for a steering gear box A steering gear box mount includes a resilient member interposed between a motor vehicle body and a steering gear box for allowing movement of the steering gear box. The mount also has a structure for limiting allowed movement of the steering gear box. Th... | 04/25/1989 |
| 4823899 | Steering apparatus A steering system for vehicles operative in a number of modes, requiring a narrow wheelbase for travelling on highways, and a wide wheelbase for performing tasks, typically agricultural. The steering system enables each of the wheels connected with such a... | 04/25/1989 |
| 4821833 | Motorcycle with swing-arm front suspension A motorcycle engine is disposed between the front and rear wheels of a motorcycle, and has a pair of cylinders. A front wheel suspension mechanism has a swing arm assembly extending forwardly, the front wheel being steerably supported on a front end of th... | 04/18/1989 |
| 4819754 | Multiple mode vehicle suspension system A suspension system for a vehicle equipped with a pair of belts arranged on opposite lateral sides of the vehicle's frame wherein each belt is entrained about an elevated drive wheel, a front and a rear idler wheel, and roller wheels arranged longitudinal... | 04/11/1989 |
| 4817980 | Articulated truck/trailer combination: first cargo unit coupling mechanism In a cargo-carrying vehicle having a power unit, a first cargo-carrying unit releasably affixed to the power unit, the first cargo-carrying unit not being pivotal on the power unit, and a second cargo-carrying unit releasably pivotally connected to the fi... | 04/04/1989 |
| 4817746 | Suspension mechanism for a track-type vehicle A track-type vehicle capable of high speed operation over rough terrain includes a frame supported by lefthand and righthand suspension mechanisms individually having a plurality of hydropneumatically actuated struts for supporting the frame on a pluralit... | 04/04/1989 |
| 4817752 | Automatic free wheeling hub assembly The device for disconnecting the wheels from a vehicle's optional drive is mounted inside the support of the axle shaft, and the wheel hub is splined onto the axle shaft. The universal joint is diametrically positioned in relation to the support of the ax... | 04/04/1989 |
| 4815554 | Air cleaner and carburetor layout for motorcycles A two wheel motorcycle of the scooter type employing a power unit with an engine mounted forwardly of the rear wheel, a power train extending rearwardly on one side of the rear wheel to couple the engine and the rear wheel and a muffler extending along th... | 03/28/1989 |
| 4813297 | Differential gear A differential gear includes a rotatable case, pinions rotatably disposed in the case, a pair of side gears meshing with the pinions and disposed in the case, a first shaft supported rotatably about a rotary axis of the case and extending from one of side... | 03/21/1989 |
| 4813698 | Mine roller connection for a tank Connection device for releasably attaching a mine roller assembly to a miary tank including an actuator controlled from within the tank. The actuator means includes a hydraulic cylinder exterior to the tank hull protected from projectiles by other, more ... | 03/21/1989 |
| 4811809 | Traction slip control device The present invention relates to a traction slip control device comprising a sensor which responds to a beginning slip condition on at least one of the driving wheels and, connected to the sensor, a control circuit which via an auxiliary drive in the form... | 03/14/1989 |
| 4811803 | Deer stand A wheeled, self-propelled deer stand for elevating hunters above the ground. The deer stand comprises a pivoted chassis the rear portion of which rotates to a vertical position when the structure is raised off the ground. The deer stand is motor-powered a... | 03/14/1989 |
| 4811808 | Acceleration slip control device for a wheeled vehicle The invention relates to an acceleration slip control device, wherein the control quantity for the throttle valve angle operation is determined not only in response to the slip condition but also to the output torque changeability of the internal combusti... | 03/14/1989 |
| 4807714 | Hitch assembly and method A hitch assembly and method for connecting a vehicle to a towed apparatus and releasing the towed apparatus from connection to the underlying supporting surface has a tongue which is connected to the towed apparatus and a socket engaging device mounted on... | 02/28/1989 |
| 4805718 | Power transmission system for a four-wheel drive A power transmission system for a four-wheel drive vehicle has front and rear wheel driving power transmission systems for transmitting the output of a transmission. A forward overrunning clutch and a reverse overrunning clutch are provided in one of the ... | 02/21/1989 |
| 4805926 | Self-lubricating device for coupling semitrailers A removable self-lubricating plate for the coupling of semi-trailer vehicles includes an aperture having a diameter so that the plate will frictionally engage the pivot pin of a vehicle mounted on the bearing plate of the vehicle so as to pinch the base o... | 02/21/1989 |
| 4802684 | Motorcycle floorboard device A convenient foot rest device is provided for attachment to motorocycles without requiring any modifcation to or defacing of the motorcycle. The device includes a heavy gauge, tubular support frame which is shaped to conform to the contours of a high perf... | 02/07/1989 |
| 4799706 | Drawbar coupler A coupler for a pickup drawbar has a removable stud mounted to the end of the drawbar for engaging an implement hitch. A main bracket is mounted to the drawbar between the stud and the work vehicle. A top strap is pivotally mounted in the main bracket and... | 01/24/1989 |
| 4799569 | Motorcycle A motorcycle carrying a fuel tank of large capacity on a body frame, wherein the fuel tank is hung down to a position sideward of an engine and is divided in its structure to have right and left side sections, at least one of the two sections of the fuel ... | 01/24/1989 |
| 4796901 | Saddle-seated vehicles The present invention provides a saddle-seated vehicle including a fuel tank and a seat located in the rear of the fuel tank, the seat having its front portion extended over the upper face of the fuel tank and provided with a resilient member biased towar... | 01/10/1989 |
| 4796718 | Drive slip control system for a motor vehicle For the control of the drive slip of a motor vehicle a first rotation rate sensor produces a first rotation rate signal corresponding to the rotation rate of the driven wheel or the output rotation rate of the change-speed gear. A second rotation rate sen... | 01/10/1989 |
| 4794998 | Structure for securely connecting a driven sprocket to the driven axle of a motorcycle A fixing structure is provided for a motorcycle including a swing arm by which an axle having at either end thereof a drive wheel and a torque damping mechanism fixed thereto respectively is rotatably supported substantially at the central part thereof. T... | 01/03/1989 |
| 4793433 | Hydraulic reaction force apparatus for power steering system A hydraulic reaction force apparatus for a power steering system includes input and output shafts, guide holes, balls, a reaction force reception portion, a hydraulic reaction force chamber, and a reaction force piston. The output shaft is coaxial with th... | 12/27/1988 |
