Famous Patents
The ice cream cone was invented at the St. Louis Worlds Fair by Ernest Hamwi in 1904. His waffle booth was next to an ice cream vendor who ran short of dishes. Hamwi rolled a waffle to hold ice cream and the cone was born.
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 |
| 7870926 | Vehicles including jack shaft having clutch and coupling engine and front wheel A vehicle includes a front wheel, a rear wheel, an engine, and a jack shaft. The engine is coupled with the rear wheel and the jack shaft. The jack shaft is configured to selectively couple the engine with the front wheel. ... | 01/18/2011 |
| 7677349 | Drive unit for motor vehicles The invention relates to a drive unit for motor vehicles, comprising an internal combustion engine, a transmission which is mounted downstream therefrom and is provided with an integrated differential, and a separating clutch that is disposed between the internal co... | 03/16/2010 |
| 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 |
| 7357211 | Steering system for off-road vehicle An off-road vehicle includes a frame and wheels. An engine powers the wheels through a drive system that includes a front differential gear unit. A housing encloses the front differential gear unit. The housing is positioned generally on a longitudinal center plane ... | 04/15/2008 |
| 7303051 | Brake device for vehicle A brake device for a vehicle such as an all terrain vehicle includes a brake disk fixed to a drive shaft, and a brake caliper for braking by a nipping action of the brake disk. The brake caliper is fitted to a final gear case on an outer side of the vehicle body fra... | 12/04/2007 |
| 7252169 | Windrower rear axle suspension system A suspension system for the rear axle of a self-propelled agricultural windrower. The axle is split into two components, each having an air spring to absorb shocks. The two air springs are interconnected by a tube to equalize the internal pressure. A pair of pins ca... | 08/07/2007 |
| 7229378 | Shift system for transfer case A transfer case having an input shaft driven by a powertrain, a first output shaft adapted for connection to a first driveline and a torque transfer mechanism. The torque transfer mechanism includes a friction clutch assembly operably disposed between the first outp... | 06/12/2007 |
| 7213663 | Driving device for robot cleaner A driving device of a robot cleaner with a shock-absorbing unit. The driving device includes a robot cleaner body and a pair of motors disposed in the robot cleaner body which are driven by respective power supplies. The driving device also includes a pair of drivin... | 05/08/2007 |
| 7198121 | Skid steer vehicle with belt drive suspension A skid steer vehicle has two drive motors that are connected by belts to spring-mounted front and rear wheels. ... | 04/03/2007 |
| 7163483 | Three speed transfer case with two transfer chains A transfer case for a vehicle having front and rear axles includes three input clutches connected to first, second and third members of a planetary gear set. First and second transfer chains are connected to each other and operatively engageable between the planetar... | 01/16/2007 |
| 7100472 | Two speed transfer case having two transfer chains A transfer case is provided for a vehicle having front and rear axles. The transfer case includes first and second input clutches connected with an input member, and first and second transfer chains having different chain ratios operably connectable between the inpu... | 09/05/2006 |
| 7081064 | Two-speed transfer case with adaptive clutch control A transfer case having an input shaft driven by a powertrain, a first output shaft adapted for connection to a first driveline, a second output shaft adapted for connection to a second driveline, an interaxle differential operably disposed between the input shaft an... | 07/25/2006 |
| 7033300 | Clutch actuation system for two-speed active transfer case A transfer case includes a two-speed range unit, a friction clutch, an actuation mechanism, and a control system. The actuation mechanism includes an electric motor, a geartrain driven by the motor, a range actuator assembly and a mode actuator assembly. The range a... | 04/25/2006 |
| 6962378 | Adjustable safety bumper A fully adjustable bumper system that absorbs impact and thereby, avoiding damage to the bumper. The bumper system includes a bumper assembly mounted to a vertically pivoting assembly through horizontally and vertically adjustable assemblies. A stop assembly is atta... | 11/08/2005 |
| 6929577 | Clutch actuation system for two-speed active transfer case A transfer case includes a two-speed range unit, a friction clutch, an actuation mechanism, and a control system. The actuation mechanism includes an electric motor, a geartrain driven by the motor, a range actuator assembly and a mode actuator assembly. The range a... | 08/16/2005 |
| 6905436 | Two-speed transfer case with adaptive clutch control A transfer case having an input shaft driven by a powertrain, a first output shaft adapted for connection to a first driveline, a second output shaft adapted for connection to a second driveline, an interaxle differential operably disposed between the input shaft an... | 06/14/2005 |
| 6862953 | Modular bi-directional clutch assembly A controllable, multi-mode, bi-directional overrunning clutch assembly and a shift system are adapted for use in a power transmission device. The clutch assembly includes a first ring journalled on a first rotary member, a second ring fixed to a second rotary member... | 03/08/2005 |
| 6620069 | Power transfer unit A motor vehicle power transfer unit for distributing torque between a front wheel drive line and a rear wheel drive line. The power transfer unit includes an input portion, an output portion, a non-parallel gear set and a parallel gear set. The input port... | 09/16/2003 |
| 6530740 | Hand truck with electrically operated lifting platform This invention relates to a hand truck with an electrically operated lifting platform. The hand truck includes a frame on both sides of which two guide rails are formed. The frame is provided with a screw shaft vertically supported on the frame to be vert... | 03/11/2003 |
| 6499553 | Chain guide for ATV An all terrain vehicle comprises an engine that powers a chain or belt operated final drive. The final drive comprises an drive sprocket and a driven sprocket. The driven sprocket is capable of pivotal movement relative to the engine. In one arrangement, ... | 12/31/2002 |
| 6488110 | Vehicle drive system A vehicle drive system comprises a frame, a motor, a first wheel assembly, a second wheel assembly and an endless drive member. The motor is mounted to the frame and has a motor shaft powered by the motor. The first wheel assembly includes a first axle, a... | 12/03/2002 |
| 6415551 | Non friction direct drive powered telescoping bleacher seating system A non friction motor driven telescoping row based seating system having a direct drive motor apparatus for engaging a drum which winds and unwinds interconnected drive carriages on said drum to provide telescoping and retraction movement to the seating sy... | 07/09/2002 |
| 6405822 | Torque distribution system for four-wheel-drive vehicle A torque distribution system for four-wheel-drive vehicle includes an idle gear mounted on one of a front or rear propeller shaft, a transfer gear mounted on the other propeller shaft, a chain connecting the idle gear and the transfer gear, a clutch coaxi... | 06/18/2002 |
| 6112843 | High mobility vehicle A vehicle, for driving over a ground surface, has a body with a left side, a right side, a front and a back. The vehicle includes left and right drive mechanisms. Each mechanism includes first and second traction elements for engaging the ground surface a... | 09/05/2000 |
| 5746677 | Vehicle transmission system A subpump assists a main pump for feeding hydraulic oil into a vehicle transmission system so as to control the distribution of the drive force transmitted to front and rear wheels. A motor for driving the subpump is started with a predetermined timing an... | 05/05/1998 |
| 5649605 | Wheeled chassis and steering device for steering it A chassis, particularly for carrying a wheelchair with pivotal seat (S), fitted with ground-engaging wheels with at least one driven from a drive device through a drive transmission and with at least one steerably suspended and connected to a steering mot... | 07/22/1997 |
| 5527225 | Full time four-wheel drive system A full time four-wheel drive system for a vehicle is described which utilizes a unique torque distributor subassembly which provides a torque differentiation function as well as a speed ratioing function, thereby permitting utilization with a torque trans... | 06/18/1996 |
| 5478192 | Boom operated fork truck A material handling vehicle comprising a top, bottom, two sides, and two ends, the vehicle having a central axis of extension extending from end to end thereof, the vehicle having a frame disposed therewith the frame having disposed proximate the bottom t... | 12/26/1995 |
| 5467840 | Drive unit for movement of telescopic seating system A drive unit (10) is provided for extending or retracting a telescopic seating system and includes a frame (14) into which a front axle (24) and a rear axle (26) are journaled, a plurality of transversely spaced wheels (28) mounted on the front axle (24) ... | 11/21/1995 |
| 5290201 | Combine with mmoveable body and tandem drive wheels An agricultural combine such as used in the harvesting of crops includes oscillating or fixed forward tandem drive wheels which are coupled to the combine's support frame, or undercarriage, to provide a smooth ride over rough fields and a more uniform cro... | 03/01/1994 |
| 5088752 | High strength die support cart having an arched frame A movable die support cart with a frame structure supported by spaced axles consisting of continuous beams extending parallel to the axles and continuous plate members extending normal to the beams and beneath the beams. Each plate member is configured wi... | 02/18/1992 |
| 4984663 | Transfer apparatus for 4-wheel driving A rotational force which was input from a transmission is received by a main shaft and transferred to the rear wheel side. The rotational force of the main shaft is transferred to the front wheel side through a hydraulic clutch. The hydraulic clutch recei... | 01/15/1991 |
| 4926952 | Four-wheel drive wheelchair with compound wheels A four-wheel drive wheelchair is disclosed, the wheelchair includes a frame and seat for supporting a user in an upright position and a pair of rear wheels mounted on opposite sides of the frame for supporting the rear end thereof. Front compound-wheels a... | 05/22/1990 |
| 4841803 | Lubrication mechanism in power transfer device for four wheel drive In a power transfer device including a housing, an input shaft rotatably mounted within the housing, an output shaft rotatably mounted within the housing and arranged coaxially with the input shaft for relative rotation thereto, a planetary gear unit arra... | 06/27/1989 |
| 4823900 | Four-wheel drive wheel-chair with compound wheels A four-wheel drive wheelchair is disclosed, the wheelchair includes a frame and seat for supporting a user in an upright position and a pair of rear wheels mounted on opposite sides of the frame for supporting the rear end thereof. Front compound-wheels a... | 04/25/1989 |
| 4745825 | Transfer system to selectively perform the two-wheeled and four-wheeled driving operations for use in automobiles A transfer gear has high speed and low speed modes with two wheel drive or four wheel drive. A main drive shaft has a main drive gear rotatably mounted on it. A main shaft is coaxial with the main drive shaft and carries a speed change gear rotatably on i... | 05/24/1988 |
| 4714126 | Four-wheel drive vehicle A four-wheel drive vehicle having straddle-type seating. A power train is located beneath the seat and between the footpegs of the vehicle, the engine employs parallel output shafts located on either side of the crankshaft to drive power transmission mean... | 12/22/1987 |
| 4706770 | Utility hauling vehicle having four wheel drive A utility hauling vehicle includes at least one steerable wheel suspended from the forward end of a rigid frame of the vehicle and front and rear pairs of unsuspended drive wheels mounted to the rigid frame rearwardly of the steerable wheel. The front pai... | 11/17/1987 |
| 4699234 | Four-wheel drive vehicle A four-wheel drive vehicle having straddle-type seating. A power train is located beneath the seat and between the footpegs of the vehicle, the engine employs parallel output shafts located on either side of the crankshaft to drive power transmission mean... | 10/13/1987 |
| 4666015 | Power train for front and rear wheel drive vehicle A front and rear wheel drive vehicle having straddle-type seating. A power train is located beneath the seat and between the footpegs of the vehicle. The engine employs parallel output shafts located on either side of the crankshaft to drive power transmi... | 05/19/1987 |
