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| Number | Title | Issue Date |
| 8146937 | Twin-frame bicycle The present invention relates to a twin-frame bicycle, particularly to one that can be pedaled by two riders in side-by-side coordination so that the riders and the twin-frame bicycle will incline integrally without tumbling or overturning. At least one articulation... | 04/03/2012 |
| 7967312 | Dual riding and driving tricycle in juxtaposing link The present invention provides a dual riding and driving tricycle in juxtaposing link, particularly for one that can be pedaled by two drivers in side-by-side coordination manner so that the drivers and tricycle will incline integrally without tumbling or overturnin... | 06/28/2011 |
| 7874566 | Dual riding and driving tricycle in juxtaposing link A dual riding and driving tricycle in juxtaposing link comprises a primary bicycle body, an auxiliary cycle body and an articulation mechanism including a resilient tension mechanism. Primary bicycle body comprises a saddle sat by a primary rider, a front whe... | 01/25/2011 |
| 7195263 | Vehicle frame structure A vehicle frame structure includes a pair of main frames, one of the pair of frames extending on left side of a vehicle, and the other on the right side, from the head pipe rearwards in an overall sealed cross sectional structure. At least a portion of each main fra... | 03/27/2007 |
| 7146008 | Conditional access television sound A digitally encrypted audio signal may be transmitted with an analog television signal. Access to the analog television video signal may be controlled by using graphics overlay techniques. The use of digital encryption techniques on the audio channel prevents improp... | 12/05/2006 |
| 6942053 | Vehicle of novel configuration and operation A vehicle having two primary wheels and two or more retractable wheels that may be operated in either two-wheeled or multi-wheeled configuration with a sliding panel system for open or complete enclosure, with both the wheelprint and the open/enclosed panel system b... | 09/13/2005 |
| 6938906 | Baby stroller with engageable locking device An apparatus for a convertible front 12 and rear 14 stroller having a pivotal locking device 22, 24 fastened to the stroller legs 18, 20 whereby the front and rear stroller can be removably fixedly attached thereto. The tandem strollers | 09/06/2005 |
| 6926296 | Multi-person velocipede A multi-person velocipede is provided with a pair of interconnected frame members. A pair of rotatable forward wheels are rigidly coupled to the forward portion of the frames, and a pair of rotatable rearward wheels are pivotably coupled to the rearward portion of t... | 08/09/2005 |
| 6892124 | Adjustable axle control An activating portion on one section of an adjustable wheel assembly triggers a proximity switch on a vehicle such as a field sprayer to provide a signal indicative of wheel tread. The signal is sent to a controller which controls wheel tread adjustment. Two or more... | 05/10/2005 |
| 6666468 | Convertible bicycle A device for connecting two bicycles to one another in a side-by-side relationship allows two riders to simultaneously use the bicycle and not have the view blocked by a rider directly in front of them. A steering bar insures that the front wheels of both... | 12/23/2003 |
| 6637763 | Enclosed motorcycle An enclosed motorcycle (10) that utilizes a structural frame (14), a pair of tandem wheels (36,38), an engine (40) and a handlebar assembly (46) provides transportation for a single driver. A foot brake pedal assembly (96) is pivotally affixed to the fram... | 10/28/2003 |
| 6554308 | Recumbent vehicle & apparatus for forming same A recumbent vehicle including parallel paired recumbent bicycles operatively and reversibly joined by a bracing assembly having less than four brace members, is provided. The parallel paired recumbent bicycles are easily separable, without the need for to... | 04/29/2003 |
| 6170844 | Dual bicycle connecting kit A novel dual bicycle connecting kit for connecting two bicycles in a side-by-side relationship. The kit may comprise a fixed handle bar coupling assembly attached to the first bicycle; one or more frame coupling assemblies attached at one end to the first... | 01/09/2001 |
| 6068278 | Method and apparatus for connecting side-by-side recumbent bicycles to form a quadracycle A method and apparatus for connecting side-by-side recumbent bicycles to form a quadracycle. The apparatus includes a pair of recumbent bicycles having front wheels and rear wheels. The bicycles have substantially rigid frame members supporting the front ... | 05/30/2000 |
| 6022036 | Bicycle apparatus A recreational bicycle apparatus includes side-by-side, interconnected bicycles, each of which is independently geared so that each rider can pedal at a different pace. The steering systems of the bicycles are linked so that either driver can steer using ... | 02/08/2000 |
| 5997019 | Propelled device with wheels and pedal elements A manually propelled device includes two base modules having at least two wheels interconnected by a pedal element. The device is provided with at least four wheels which are parallel with each other. The pedal elements each interconnect two of the wheels... | 12/07/1999 |
| 5918892 | Fastening device for connecting children's strollers A device for use in conjunction with strollers for securely connecting single strollers together, allowing two or more children, to be safely and effectively transported. The stroller connecting device(s) are easily detachable. The apparatus comprises an ... | 07/06/1999 |
| 5511809 | Pedal-powered four-wheel vehicle The present invention is a pedal-powered two-rider four-wheel vehicle which has a general configuration of two bicycles attached in a side-by-side relationship. The four-wheel vehicle includes four mechanisms which are utilized to construct the present in... | 04/30/1996 |
| 5342074 | Dual recumbent vehicle A dual recumbent vehicle is provided which includes a pair of recumbent bicycles interconnected in a side-by-side relationship. Each bicycle has an operator controlled steering assembly, an operator controlled drive assembly, and a recumbent seat operativ... | 08/30/1994 |
| 4834410 | Bicycle pairing apparatus A bicycle pairing apparatus comprising a plastic chassis having head, rear and intermediate portions respectively opposed to the handlebars, the rear axles and the seat posts of the bicycles. Connector rods connecting the bicycles at the handlebars, the r... | 05/30/1989 |
| 4805938 | Device for connecting two baby strollers together A device is provided for connecting two baby strollers together consisting of a pair of bracket units spaced apart and clamped between frames of the baby strollers so that one person can operate the strollers simultaneously for transporting two babies the... | 02/21/1989 |
| 4290620 | Structure to couple two bicycles The disclosure provides for torsionally resilient interconnection structure of two existing bicycles into side-by-side or parallel cooperative relationship, by employing plurality of torsionally resilient connecting members which are bent to form a longer... | 09/22/1981 |
| 4288089 | Attachment apparatus for side-by-side bicycles This invention is an attachment apparatus operable to interconnect two bicycle members in a side-by-side relationship. The attachment apparatus includes a main support coupling means to interconnect the bicycle members and a steering coordinator means to ... | 09/08/1981 |
| 4227589 | Combined engine and pedal powered vehicles A combined engine and pedal-powered multipassenger, multipurpose four-wheel vehicle constructed by operatively connecting any two compatibly configured, commercially available bicycles and powering at least one of its four wheels with auxiliary propulsion... | 10/14/1980 |
| 4178008 | Side by side bicycle A side by side bicycle has a frame including rear forks, a transverse crank tube, an upright seat tube and an upright steering tube. A rear wheel is mounted in the rear forks, and a crankshaft is journalled in the crank tube. There is a first pair of cran... | 12/11/1979 |
| 4093258 | Multipassenger pedal vehicle A multipassenger pedal vehicle comprising at least two rear drive assemblies, each having a conventional design and including a triangularly shaped frame, a rear wheel, a seat, and a pedal assembly. The rear drive assemblies are interconnected in a side-b... | 06/06/1978 |
| 3938827 | Bicycle interconnecting apparatus Interconnecting bars are employed to connect two standard bicycles in a side-by-side relationship. The bicycles are interconnected adjacent the respective rear axles thereof, adjacent their respective seats and adjacent the front of the frames thereof, fo... | 02/17/1976 |
