Three Tandem Wheels Patents (Class 280/239)
  • Patent number: 10549810
    Abstract: A motorized scooter is provided for use as an assistive mobility aid. The motorized scooter is easily folded for storage or transport. It comprises a front wheel in rotatably engagement with a steering tube, the front wheel including a hub and spokes extending therefrom, an electric motor housed in the hub and in mechanical communication with a cog, the cog engaging the spokes; a handle bar distally attached to the steering tube; a framework, the framework including a plurality of tubes that are in one or more of pivotal or slidable relation; a seat post slidably mounted on the framework; a seat attached to the seat post; and a pair of rear wheels in rotatable engagement with the framework.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: February 4, 2020
    Inventors: Colleen Block, Emanuela Bourne
  • Patent number: 9844953
    Abstract: In some examples, a first heating stage heats a print medium to a first temperature in a printing region when printing latex ink on the print medium, and a curing heating stage heats, in a curing zone, the print medium to a curing temperature greater than the first temperature to cure the latex ink on the print medium. A cooling stage located between the first and curing heating stages cools the print medium by directing a first part of airflow from the cooling stage to a printing zone, the cooling performed after the print medium has been heated by the first heating stage and prior to heating of the print medium by the curing heating stage. A second part of the airflow is directed from the cooling stage to the curing zone.
    Type: Grant
    Filed: March 3, 2016
    Date of Patent: December 19, 2017
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Antonio Monclus, David Claramunt, Ezequiel Jordi Rufes, Cristina Sabater, Francisco Javier Rodriguez, Francisco Guerrero
  • Patent number: 8794641
    Abstract: A micro weight enclosure when fully loaded with gear and equipment is capable of being towed by vehicles with gross tow weight ratings of less than 1000 lbs. This enclosure does not utilize a traditional chassis, rather uses common manufacturing of panel assemblies mechanically attached together forming the basic structural elements required for strength at minimal weight and reduced wind drag. The enclosure, being ergonomically optimized, allows enough space to stand in one location, but sit, recline, or lay prone in a most comfortable fashion, and to attend to human hygiene and related activity in a secure protected environment. The independent suspension couples directly to the enclosure lowers the vehicle, reducing wind drag, allowing enclosure leveling, improves ingress, egress, and overall occupant comfort. The enclosure being acceptable for day travel; surfing or partying in urban and rural environments as example, or extended travel; road trips or camping as example.
    Type: Grant
    Filed: April 12, 2012
    Date of Patent: August 5, 2014
    Inventor: Christopher Muller
  • Patent number: 8284021
    Abstract: A rolling code transmitter is useful in a security system for providing secure encrypted RF transmission comprising an interleaved trinary bit fixed code and rolling code. A receiver demodulates the encrypted RF transmission and recovers the fixed code and rolling code. Upon comparison of the fixed and rolling codes with stored codes and determining that the signal has emanated from an authorized transmitter, a signal is generated to actuate an electric motor to open or close a movable barrier.
    Type: Grant
    Filed: July 22, 2008
    Date of Patent: October 9, 2012
    Assignee: The Chamberlain Group, Inc.
    Inventors: Bradford L. Farris, James J. Fitzgibbon
  • Patent number: 8226104
    Abstract: An energy efficient tricycle has a frame, fork and handlebars connected to hold a front wheel and two rear wheels. A power and transmission assembly means is mounted on the frame to provide power to both rear wheels. A pair of pedals are independently operable and used to provide the torque needed to propel the tricycle. A motorized embodiment is also provided to provide additional power when needed or to completely motorize the tricycle. The pedals are mounted so that they travel in a vertical path. The handlebars, front wheel and both rear wheels are foldable to allow the tricycle to fit within a vehicle. The tricycle has a very low center of gravity. A seat is provided in one embodiment to allow a user to sit and operate using a motor.
    Type: Grant
    Filed: September 15, 2010
    Date of Patent: July 24, 2012
    Inventors: Konstantin Kulikov, Sergey Cheprasov
  • Patent number: 7845664
    Abstract: Embodiments of the present invention comprise a single-wheeled recumbent bicycle trailer which may be attached to a bicycle, for transport of a passenger or passengers, wherein the passengers may contribute to propulsion of the combined cycle. The embodiments include a recumbent seat position and other accommodations for the safety and comfort of passenger(s) and ease of use. Such accommodations may include single or multi-passenger configuration, passenger pedals, hands-free operation for passengers, supportive seats with backrests, extendable leg rests, and safety restraints.
    Type: Grant
    Filed: September 19, 2008
    Date of Patent: December 7, 2010
    Inventor: Stephan M Rodgers
  • Patent number: 6983947
    Abstract: A bicycle towing device which is positioned between a tow bicycle, such as an adult bicycle, and a towed bicycle, such as a child's bicycle, and enables the towed bicycle to function as a one wheeled bicycle trailed behind the tow bicycle. The bicycle towing device in accordance with the present invention enables the towing of an intact and ridable towed bicycle behind the tow bicycle by lifting the front wheel of the towed bicycle off the ground and, if desired, the towed bicycle can be pedaled while it is being towed by the tow bicycle. When not in use, the bicycle towing device in accordance with the present invention is capable of being collapsed and stored on the tow bicycle.
    Type: Grant
    Filed: December 1, 2003
    Date of Patent: January 10, 2006
    Inventors: Scott Guy Asbury, Edward Scott Nelson
  • Patent number: 6561533
    Abstract: An apparatus for hitching two bicycles together including a first hitch which connects the apparatus to one of the bicycles and a second hitch which connects the apparatus to the second bicycle. The second hitch includes a stem which is slid through and secured to the head tube of the second bicycle after the front fork and wheel have been removed from the second bicycle.
    Type: Grant
    Filed: July 31, 2001
    Date of Patent: May 13, 2003
    Inventor: David M. Snobl
  • Patent number: 6290246
    Abstract: A quick-mounting arrangement for connecting a first bicycle to a second bicycle. The arrangement includes a pivot holder which is integrally formed with a rear fork of the first bicycle. The arrangement includes a quick-release mechanism which is adapted to secure a front fork of the second bicycle to the pivot holder to form a tandem upon the removal of a front wheel of the second bicycle. The pivot holder includes two parallel lugs. Each of the lugs includes a pivot hole adapted to receive the quick-release mechanism to enable the quick-release mechanism to secure the front fork of the second bicycle to the pivot holder.
    Type: Grant
    Filed: October 12, 2000
    Date of Patent: September 18, 2001
    Inventor: Bor-Ching Lin
  • Patent number: 6155582
    Abstract: A coupling device for coupling an adult bicycle to a child's bicycle. The coupling device includes a linking bar having a generally flattened "S"-shaped configuration such that the front wheel of the child's bicycle is in a spaced relationship relative to the ground surface when the child's bicycle is being towed by the adult's bicycle. The linking bar can be readily attached to both the adult's bicycle and the child's bicycle by respective attachment components. A releasable locking structure is provided for stabilizing the handle bar of the child's bicycle thus allowing a child to grasp onto the a handle bar for stability while being pulled by the adult's bicycle.
    Type: Grant
    Filed: September 29, 1998
    Date of Patent: December 5, 2000
    Inventor: Charle Bourbeau
  • Patent number: 6024368
    Abstract: The in line tricycle has a horizontal frame (34) having three wheels in line namely: a front wheel (20), an inner rear wheel (24), and an outer rear wheel (26); a chainwheel (22) and its adjuncts mounted thereunder. A modified freewheel is attached to the hub of the inner rear wheel (24) while a regular freewheel is attached to the hub of the outer rear wheel (26).
    Type: Grant
    Filed: July 10, 1997
    Date of Patent: February 15, 2000
    Inventor: Jose P. Balajadia
  • Patent number: 5860662
    Abstract: A coupler for coupling two standard bicycles together to form a tandem tricycle. The coupler includes a clamp for clamping the coupler to one of the tines of the seat stays of the leading bicycle and further includes a quick release clamp for releasably gripping one of the tines of the front fork of the trailing bicycle. The quick release clamp is rotatable about a transverse axis relative to the clamp, so the trailing bicycle is likewise rotatable about a transverse axis relative to the leading bicycle. This permits the trailing bicycle to pitch independently of the leading bicycle, thereby allowing the two bicycles to smoothly traverse uneven terrain.
    Type: Grant
    Filed: May 1, 1997
    Date of Patent: January 19, 1999
    Inventors: Thomas A. Bartoshesky, Hollis E. Dayton
  • Patent number: 5785335
    Abstract: A trailer cycle (10) includes a trailer cycle frame (52) having a main tube (54) which extends toward the lead cycle (12). A hitch mechanism (14) is located between the lead cycle and the trailer cycle. A lead-cycle hitch portion (34) is joined to the lead cycle substantially vertically above the hub of the lead-cycle rear wheel (26). A flexible hitch portion (82) is interposed between the trailer cycle frame and the lead cycle hitch portion and is housed in an orthogonal member (84) which contains an adjustable vertical, or pitch, pivot mechanism and a similarly adjustable yaw pivot mechanism. The orthogonal member is constructed and arranged to prevent motion about the roll axis of the trailer cycle relative to the lead cycle. A lead-cycle-hitch engaging member is located at the lower end of the yaw pivot mechanism and selectively engages and releases the lead-cycle hitch portion. A locking mechanism is provided which secures the trailer cycle to the lead.
    Type: Grant
    Filed: September 10, 1996
    Date of Patent: July 28, 1998
    Assignee: Burley Design Cooperative
    Inventor: Donald A. George
  • Patent number: 5743543
    Abstract: A bicycle includes a first bicycle body, a connecting frame and a second bicycle body. The first bicycle body includes a vertical seat post for mounting a seat, and a first joint member provided on the seat post. The connecting frame extends longitudinally and rearwardly from the first bicycle body, and has a front end with a second joint member to be releasably connected to the first joint member, and a rear forked end with a pair of separate first connecting portions. The second bicycle body includes a top tube and a bottom tube, both of which respectively have ends forming second connecting portions. The second connecting portions are respectively connected to the first connecting portions. The first connecting portions are fastened to the second connecting portions.
    Type: Grant
    Filed: June 10, 1996
    Date of Patent: April 28, 1998
    Inventor: Ping-Jan Chiu
  • Patent number: 5716065
    Abstract: A tandem bicycle which includes a bicycle and a rear cycle unit coupled to the seat tube of the bicycle by a coupling, the rear cycle unit including a top tube, a down tube, a bottom bracket, a seat tube, a saddle and post assembly, a seat stay and bottom fork assembly, a free wheel, a crank and pedal assembly, and a handlebar, wherein the top tube and down tube of the rear cycle unit are respectively comprised of two sections pivotably connected together and secured in the operative position by a lock pin so that the rear cycle unit can be collapsed when not in use; a disk is mounted on the crank and pedal assembly and turned by it; an adjustable damper is mounted on the seat tube and down tube of the rear cycle unit and controlled by an adjustment screw to give a damping force to the disk.
    Type: Grant
    Filed: April 16, 1996
    Date of Patent: February 10, 1998
    Inventor: Ssu-Liu Liu
  • Patent number: 5522610
    Abstract: Bicycles are adapted to be combined by removing the front wheel of a trailing one of the bicycles and attaching the front fork ends to the rear axle of a leading one of the bicycles, resulting in a three-wheeled tandem bicycle with two drive wheels. To allow for relative pitching motion of the coupled bicycles, the attachment includes bearings. Each bearing may include a brass sleeve over the rear axle and a separable end cap on each fork end, the cap held to the fork by screws. The sleeve is longer than the width of the fork end to prevent binding. Each fork includes a yaw-correction torsion spring that resists angular rotation of the handlebars of the trailing bicycle relative to the rear axle of the leading bicycle. The yaw-correction spring may include a flat tine portion of the fork. The tine preferably slides into the upper part of the fork in a slot.
    Type: Grant
    Filed: October 4, 1994
    Date of Patent: June 4, 1996
    Inventor: Willis A. Teel, Sr.
  • Patent number: 5372371
    Abstract: An improved apparatus and method for converting two single rider bicycles into a tandem tricycle is provided through means of extending the rear axle of the front bicycle of the tandem by rear axle extenders. The rear axle extenders are in line with the rear axle and provide a bearing upon which a modified front fork of the rear bicycle is mounted. The bearing is positioned outboard on the rear axle extenders by a distance sufficient to allow the modified front fork of the rear bicycle to clear all gearing or transmissions provided on the rear axle of the front bicycle. The modified front fork of the rear bicycle is modified to provide a distance of separation between the tines of the fork to allow for this clearance. Front axle extenders are also provided to the front axle of the front wheel of the rear bicycle when the two bicycles are disassembled to allow them to be used once again as single rider bicycles.
    Type: Grant
    Filed: May 26, 1993
    Date of Patent: December 13, 1994
    Inventor: Scott M. Larson
  • Patent number: 5368323
    Abstract: A safety bar structure arranged for retrofit relative to an associated bicycle wheel is arranged to include projecting support rails extending radially beyond the rear bicycle wheel, wherein the support rails rotatably mount a pair of support wheels to prevent rotation of the bicycle frame about the rear wheel.
    Type: Grant
    Filed: June 1, 1993
    Date of Patent: November 29, 1994
    Inventor: Stephen W. Young
  • Patent number: 5330221
    Abstract: An auxiliary device attachable to a bicycle to aid in learning the stunt known as "popping wheelies" balance on the rear wheel of the bicycle, the device including a rearwardly extending support frame, a rear frame pivotally attached at one end to the support frame and pivotally attached at the other end to a member that is lengthwise adjustably attached to the support frame with a pair of wheels on an axle flexibly attached to the rear frame.
    Type: Grant
    Filed: January 15, 1993
    Date of Patent: July 19, 1994
    Inventor: Steven W. Sutton
  • Patent number: 5209507
    Abstract: A transmission system is provided for a tandem bicycle having a frame on which are mounted a front, steerable, ground engaging wheel, and a rear, driven, ground engaging wheel. The bicycle also includes front and rear pedal systems, each of which includes a shaft rotatably mounted in a hub carried by the frame, each shaft having axial ends to which pedal cranks are connected for rotating the shaft in response to pedal rotation of the cranks. The transmission system includes first apparatus for coupling the shaft of the front pedal system to the rear wheel so that pedal rotation of the cranks connected to the last mentioned shaft imparts rotation to the driven wheel. The system further includes second apparatus for coupling the shaft of the rear pedal system to the rear wheel so that pedal rotation of the cranks connected to the last mentioned shaft imparts rotation to the driven wheel.
    Type: Grant
    Filed: February 18, 1992
    Date of Patent: May 11, 1993
    Inventor: Alberto Domenge
  • Patent number: 5067738
    Abstract: A single wheeled trailer for carrying an occupant is provided. The frame of the trailer is comprised of tow bar members of rectangular cross section and two non-symmetrical rear fork members which retain the single wheel. A hitch connected to a driving bicycle tows the trailer. A pedal assembly coupled to the frame enables the occupant to power the trailer wheel. The occupant of the trailer is forward facing and may help power the bicycle or be towed by the prime mover. The frame design allows ease of mounting and dismounting of the child.
    Type: Grant
    Filed: October 22, 1990
    Date of Patent: November 26, 1991
    Inventor: Richard J. O'Connor
  • Patent number: 4955628
    Abstract: A mini foldable cycle having a single front wheel for steering and a pair of adjacent wheels in tandem located at the rear for propelling the vehicle. The tandem arranged rear wheels, with the front tandem wheel slightly higher than the rear tandem wheel, gives the cycle the feel and comfort of a large wheeled vehicle so that very small wheels are required. The cycle consequently is small and light, and is made foldable so that it can be reduced to a very small package for convenience of being transported.
    Type: Grant
    Filed: February 16, 1989
    Date of Patent: September 11, 1990
    Inventor: David Chiu
  • Patent number: 4824130
    Abstract: A mini foldable cycle having a single front wheel for steering and a pair of adjacent wheels in tandem located at the rear for propelling the vehicle. The tandem arranged rear wheels, with the front tandem wheel slightly higher than the rear tandem wheel, gives the cycle the feel and comfort of a large wheeled vehicle so that very small wheels are required. The cycle consequently is small and light, and is made foldable so that it can be reduced to a very small package for convenience of being transported.
    Type: Grant
    Filed: October 19, 1987
    Date of Patent: April 25, 1989
    Inventor: David Chiu
  • Patent number: 4822068
    Abstract: The vehicle toy includes a split central roller with end rollers on either side of it, a platform between the segments of the split central roller, side members along the ends of the rollers, and vertical members leading to handrails above the rollers to be grasped by the person standing on the rollers to manipulate the vehicle. The central roller is positioned below the end rollers and the vehicle is symmetrical, allowing either end roller to be selectively engaged with the supporting surface, along with the central roller.
    Type: Grant
    Filed: March 7, 1988
    Date of Patent: April 18, 1989
    Inventor: Vernal M. Tyler
  • Patent number: 4688816
    Abstract: A multiple-wheel cycle includes a front wheel and two rear wheels respectively driven by two chainwheels formed on a driving shaft rotatably mounted on a bottom bush of a seat tube of the cycle frame so that the three wheels having their centers projectively aligned all contact the ground surface to increase their friction with the ground for stable running and less slippery of the cycle.
    Type: Grant
    Filed: November 24, 1986
    Date of Patent: August 25, 1987
    Inventor: Tzu-Tsan Yang
  • Patent number: 4458908
    Abstract: A tandem tricycle is easily constructed from standard bicycles by removing the front wheel and fork of the rear bicycle, placing an adapter on the frame of the rear bicycle, and mounting the adapter to the rear of the leading bicycle. The adapter allows the rear bicycle to tilt, to articulate, and to bend with respect to the leading bicycle. Each function is independently achieved through suitable assemblies, and the combination allows simultaneous tilting, articulating, and bending. Although described with reference to an adapter suitable for converting standard bicycles to a tandem tricycle, the invention also contemplates the manufacture of an integral tandem bicycle or tricycle having an adapter which allows tilting, articulating, and bending of the trailing section of the tandem relative to the leading section. Multisectioned velocipedes are also contemplated.
    Type: Grant
    Filed: April 12, 1982
    Date of Patent: July 10, 1984
    Inventor: John R. Strong
  • Patent number: 4445702
    Abstract: An improved super bike, including a bicycle with a third wheel located between the bicycle front and rear wheels and means for the third wheel to selectively engage the ground, the third wheel carrying the foot pedals for powering the vehicle travel.
    Type: Grant
    Filed: November 23, 1981
    Date of Patent: May 1, 1984
    Inventor: Daniel Reyes
  • Patent number: 4190129
    Abstract: A vehicle supported by an air cushion comprises three wheels arranged along a longitudinal axis of a chassis.The front and rear wheels can pivot through 360.degree. and are always driven in the same direction. The center wheel has a fixed axle and is idler-mounted. A steering wheel controls the simultaneous and identical orientation of the front and rear wheels, while pedals control the lifting of the wheels in relation to the ground, according to predetermined combinations.
    Type: Grant
    Filed: May 9, 1978
    Date of Patent: February 26, 1980
    Inventor: Dominique Mary
  • Patent number: 4154452
    Abstract: A bicycle safety accessory for preventing tipping over when the rider is executing a "wheelie" maneuver, the safety accessory utilizing a third wheel which is positioned directly behind the rear wheel of the bicycle and normally out of contact with the ground. The auxiliary wheel is carried by rearwardly extending support arms which are attached to the rear wheel and framework of the bicycle by special purpose bracketry such that the auxiliary wheel is substantially vertically adjustable.
    Type: Grant
    Filed: July 25, 1977
    Date of Patent: May 15, 1979
    Assignee: Wizzard Enterprises, Inc.
    Inventor: Dekker K. Newman
  • Patent number: 4012054
    Abstract: A bicycle safety apparatus for stabilizing a bicycle when the front wheel of the bicycle is elevated above the ground which includes rollers or wheels that are mounted on the ends of rigid arms that extend outwardly and rearwardly from the back wheel of the bicycle. The rollers or wheels are maintained in spaced apart relationship with the axis of the rollers or wheels being in approximately the same horizontal plane as the rear axle of the bicycle, when both wheels of the bicycle are in contact with the ground. The rollers or wheels of the safety apparatus are substantially smaller than the wheels of the bicycle such that when the front end of the bicycle is elevated, a three point contact is made by the rear wheel of the bicycle and the spaced apart rollers or wheels to stabilize the bicycle and prevent it from tipping over backwards.
    Type: Grant
    Filed: November 19, 1975
    Date of Patent: March 15, 1977
    Inventor: Paul A. Moore
  • Patent number: 3997185
    Abstract: A standard bicycle frame is modified by rigidly and permanently securing two generally parallel integral tubular members extending from the head tube of the frame past the seat support tube and then past the axis of the rear wheel and beyond the same rearwardly to a point which will touch the ground when the center of gravity of a rider's body, riding on the rear wheel only, moves backward and approaches dead center over the axis of the rear wheel. These two tubular members are attached to the head tube and one to each side of the seat support tube in a rigid and permanent manner, and are detachably secured one at each end of the opposite ends of the rear wheel axial shaft.
    Type: Grant
    Filed: October 10, 1975
    Date of Patent: December 14, 1976
    Inventor: Salvatore C. Parrilla
  • Patent number: 3961810
    Abstract: Wheel for bicycle is mounted upon a wheel-mounting structure which is rigidly attached to the bicycle frame. The wheel is positioned so that, when the bicycle tilts backward to a semi-stable position on its rear wheel, the bicycle safety and conversion wheel of this invention prevents excessive further tiltback. Furthermore, the structure has a step above the wheel so that the bicycle may be ridden in an unconventional manner upon its rear wheel and its conversion wheel.
    Type: Grant
    Filed: October 7, 1974
    Date of Patent: June 8, 1976
    Inventor: Larry L. Arico