U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Bizarre Patents

Patent No. 5421089

Fork With Timer

A fork with timer for providing a cue to a user after an elapsed period of time for indicating that another bite of food using the fork may be taken.

Newsletter  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.

 

Class 280/270 - One-wheel controlled


Subclass of Class 280 - Land vehicles
Definition: Vehicles in which the steering is controlled by a single
No. of patents: 70
Last issue date: 01/18/2011


  2  
NumberTitleIssue Date
5150762Personal mobility vehicle
Personal mobility vehicles includes front and rear frames which are connected together in use. The rear frame supports the rear axle and drive wheels, as well as the electric motor/brake system. The front frame supports a front wheel spindle to which one ...
09/29/1992
5145210Bicycle, handlebar and adapter system
Handlebars for a bicycle include a central crosspiece connectable to a bicycle steering post and sidewardly extending portions which may include a pair of pads for supporting a rider's forearms. A generally vertical handgrip portion is located by an inter...
09/08/1992
5116067Convertible chair support for disabled persons
A support structure for disabled persons that can be adapted to attach standard wheelchair wheels for providing mobility to the disabled person while allowing interchanging accessories to change the support structure for use in sporting events such as rac...
05/26/1992
5112072Wheelchair for single-hand operation
A wheelchair operable with one hand including operation ring, extension arm and interlocking member. The operation ring is attached to a yoke of universal joint that is axially rotatable and installed between the operation ring and one of the driving whee...
05/12/1992
5064212Bicycle utilizing the vector system
A bicycle which comprises a triangular frame, a front fork including a vectorial angle of 90°, the length of the upper portion of the front fork being longer than that of the lower portion of the front fork, wherein the vertical arm extending from the lo...
11/12/1991
5020815Self-propelled, steerable wheelchair
A retrofitable attachment for easily and quickly converting most conventional wheelchairs into self-propelled, steerable wheelchairs. The invention includes a drive arrangement easily attachable to one of the rear wheels of the wheelchair, an elongated ar...
06/04/1991
4995627Bicycle utilizing the vector system
A bicycle which comprises a triangular frame, a front fork including a bent portion with an vectorial angle of 90°, wherein the length of the upper portion of the front fork being longer than that of a lower portion of the front fork, and a vertical arm ...
02/26/1991
4925202Three-wheeled pedal-propelled cycle with front and rear brakes
A pedal-propelled tricycle includes two front wheels, a rear wheel, a pedal drive and a handle bar. The pedal drive serves to rotate the axle of one front wheel by way of a chain while a brake on the axle of the other front wheel is adapted to be operated...
05/15/1990
4778192Recumbent vehicle
This disclosure relates to novel improved recumbent vehicles having a frame comprising an elongate tubular support means adapted to substantially entirely enclose within its interior the vehicle's primary drive means thereby eliminating risk of rider enta...
10/18/1988
4773499Steerable wheel structure for ground vehicles
A vehicle having a fore-and-aft body including transversely spaced apart side walls or supports carries between the supports a forkless steerable wheel and axle structure arranged in conjunction with right and left force-exerting means so that on right-ha...
09/27/1988
4773663Recumbent bicycle
A recumbent bicycle is powered by the driving of a crank spindle that rotates on an axis generally coincident with that of the front wheel. The crank spindle is disposed within a spindle housing supported from the front of the bicycle frame, and the spind...
09/27/1988
4756379Motorcycle
A motorcycle having a swing-arm front suspension mechanism includes front and rear wheels, an engine disposed between the front and rear wheels and having an engine block, a front wheel steering knuckle disposed on one side of the front wheel and by which...
07/12/1988
4746132Multi-wheeled cycle
A multi-wheeled cycle comprising a frame, a main wheel, and at least one auxiliary wheel secured for rotation at one end of the frame forwardly or rearwardly of the main wheel, and a spaced-apart pair of auxiliary wheels secured for rotation at the other ...
05/24/1988
4702340Motorcycle apparatus
A motorcycle apparatus having improved features relating to an improved overall drive system for providing automatic transmission operation. Also described is an improved transmission construction relating to a gear selection means. Furthermore, there is ...
10/27/1987
4700962Rowing type vehicle
A manually operated vehicle propelled by motion simulating rowing, the vehicle having a frame with drive wheels and a steering wheel and with a seat mounted between the drive wheels on a rail that rotates around its long axis and is connected to the steer...
10/20/1987
4685694Steering apparatus of vehicles
In a vehicle, such as a motor cycle, motor scooter, etc., including a driver seat located backward of a headpipe, a handle supporting portion is projected backward from the headpipe, a handle is pivotably mounted on a rear end portion of this handle suppo...
08/11/1987
4641849Manual actuating device, especially for steering a motorcycle
A manual actuating device for a motorcycle steering that allows the motorcyclist to push and pull right and left handles to affect turning of the motorcycle. Each handle is connected through a three bar set to a rotatable connecting bar which is integral ...
02/10/1987
4616840Machine for utilizing energy
A machine for utilizing muscular energy is disclosed which can be driven, through separate operating means, by movement of a user's legs and by upper body (i.e. arms and torso) movement. The movement of the legs and the upper body movement need not be syn...
10/14/1986
4586723Steering device for a wheelchair
A wheelchair having a hand operated steering mechanism that can be easily mounted and/or dismounted from the chair. The mechanism involves a steering rod having a center section cojoined to an upper section and a lower section by means of a pair of univer...
05/06/1986
4541647Recumbent bicycle
A recumbent bicycle includes a seat with a back rest and pedals forwardly of the seat so that reaction from the pedals can be communicated by the rider into the back rest of the seat. A pair of levers immediately in front of the seat can be operated in re...
09/17/1985
4540189Steering system for motorized cycles
A steering system for a motorized cycle including a vehicle frame, a front suspension steerably supported by the frame, and a single front wheel integrally steerably suspended by the front suspension. The steering system comprises a handlebar, a steering ...
09/10/1985
4480847Steering device for vehicle
A steering device for a vehicle including a steerable wheel, a front fork rotatably supporting the same, a steering member connected to the front fork, and a link mechanism. The link mechanism supports the front fork on the frame of the vehicle to allow i...
11/06/1984
4447069Steering assembly crash resistant motorcycle
A motorcycle having a number of cooperating protective features to protect riders against injury in high speed crashes or other accidents. A motorcycle of the usual basic configuration, having a pair of wheels in tandem with a motor therebetween connected...
05/08/1984
4431203Steering arrangement for recumbent bicycle or the like
An arrangement for coupling a seat to the frame of a recumbent bicycle includes brackets on the seat for engaging a frame member of the bicycle, openings in the frame member and the brackets for alignment and locking pins for insertion into the aligned op...
02/14/1984
4353567Steering and suspension system for the front wheel of a three-wheeled vehicle
A steering and suspension system for the front wheel of a three-wheeled vehicle in which a pair of suspension frames pivotally support the front wheel and are in turn pivotally supported for variable movement upon rotation of the vehicle's steering wheel....
10/12/1982
4331344Fairing mounting apparatus
A disk on a motorcycle fork blocks the flow of air and water upwardly along the fork and is rotatable in a frame mounted carrier located inside a motorcycle fairing mounted on the motorcycle frame. The disc also functions as an engine noise barrier. A pai...
05/25/1982
4239248Collapsible walker
A three-wheeled vehicle has three major frame components: the first two being spaced parallel bars disposed horizontally relative to the ground; the second being two bars hingedly connected to the first bars at an angle thereto and approaching each other ...
12/16/1980
4168081Motorcycle steering gear
A planetary gear reduction unit is drivingly connected between the handlebars and front fork of a motorcycle for steering. The handlebar is coaxially mounted for rotation with respect to the front fork of the motorcycle; sector gears are respectively moun...
09/18/1979
4162605Rear wheel support apparatus for a three wheel vehicle
An improved wheel support apparatus for a mowing machine of the type having a body movably supported by three drive wheels, one of which is a steerable drive wheel. The wheel support apparatus includes a sleeve fixed to the body and a bracket member carri...
07/31/1979
  2  
 
Sign InRegister
Username  
Password   
forgot password?