Patents by Inventor Robert G. Lahr
Robert G. Lahr has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 4795154Abstract: A toy vehicle game is disclosed herein permitting continuous toy car racing in an endless slotted track without interruption of competitive zeal between racing opponents. An endless track is employed having at least two parallel slotted lanes in which multiple toy vehicles may operate. Each slot on the curved sections of the track is provided with a shoulder narrowing the entrance leading into the slot. Each toy vehicle includes a guide beam travelling through the slot and pivotally carried on the underside of the vehicle wherein each guide beam includes a central portion terminating at the lower end in an expanded or enlarged guide slidably carried on the continuous slot beneath the shoulder while the upper end of the guide beam terminates in a rotational control element adapted to engage limit stops downwardly depending from the vehicle chassis to limit the pivotal or rotational turning of the vehicle about the guide beam due to centrifugal force.Type: GrantFiled: June 25, 1987Date of Patent: January 3, 1989Assignee: Ideal LoisirsInventor: Robert G. Lahr
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Patent number: 4415157Abstract: A toy vehicle game includes a relatively flat slotless track having spaced sidewalls defining a pair of lanes therebetween. A pair of toy vehicles each having a body, a reversible electric motor and means for steering and/or biasing said vehicle into one or the other of the lanes depending upon the polarity of current supplied to the vehicle are provided for use on the track. Current is selectively and independently provided to the toy vehicles through current supply strips on the track and control means allows independent reversal of current supplied to the vehicles. Current pick-ups are provided on the vehicles in predetermined relation to one another and to the current supply strips on the track so that each vehicle is respectively associated with only one of the current supply strips, regardless of the direction of travel of the vehicle on the track.Type: GrantFiled: September 28, 1981Date of Patent: November 15, 1983Assignee: Ideal Toy CorporationInventor: Robert G. Lahr
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Patent number: 4231183Abstract: A toy vehicle for use in a toy vehicle game including an endless track defining at least two parallelly extending vehicle lanes in which two or more toy vehicles are adapted to be operated. The toy vehicles each include a reversible rotary drive motor and a transmission operatively engaged between the motor and two drive wheels for simultaneously driving the drive wheels in the forward direction, while selectively driving them at different speeds, in response to the direction of rotation of the drive motor, thereby to control the turning radius of the vehicle when changing lanes and biasing the vehicle against one or the other of the side walls of the track to guide the vehicle along its path of travel in one or the other of the lanes.Type: GrantFiled: June 22, 1979Date of Patent: November 4, 1980Assignee: Ideal Toy CorporationInventor: Robert G. Lahr
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Patent number: 4218846Abstract: A toy vehicle is provided for use in a toy vehicle game including an endless track defining at least two parallely extending vehicle lanes in which two or more toy vehicles are operated. The toy vehicles each include a reversible electric rotary drive motor and a transmission operatively engaged between the motor and the drive wheels for driving the vehicles in a forward direction regardless of the direction of rotation of the drive motor. The drive transmission has an idler drive member mounted on a rotatable frame in driving engagement with the output of the motor and is moved into driving engagement with one or the other of the drive wheels depending upon the direction of rotation of the drive motor.Type: GrantFiled: September 20, 1978Date of Patent: August 26, 1980Assignee: Ideal Toy CorporationInventor: Robert G. Lahr
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Patent number: 4156987Abstract: A toy vehicle is provided for use in a toy vehicle game including an endless track defining at least two parallely extending vehicle lanes in which two or more toy vehicles are adapted to be operated. The toy vehicles each include a reversible electric rotary drive motor and a transmission operatively engaged between the motor and the drive wheels for driving the vehicles in a forward direction regardless of the direction of rotation of the drive motor. The vehicle includes steering wheels and a second transmission connected between the motor and the steering wheels to rotate the steering wheels between their right and left hand driving positions in response to a reversal of the polarity of current supplied to the motor thereby to bias the car against one or the other of the side walls of the track to guide the vehicles along their path of travel in one or the other of the lanes.Type: GrantFiled: December 5, 1977Date of Patent: June 5, 1979Assignee: Ideal Toy CorporationInventor: Robert G. Lahr
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Patent number: 4125261Abstract: A toy vehicle is provided for use in a toy vehicle game including an endless track defining at least two parallely extending vehicle lanes in which two or more toy vehicles are adapted to be operated. The toy vehicles each include a reversible rotary drive motor and a transmission operatively engaged between the motor and two drive wheels for rotating one or the other of the drive wheels, in response to the direction of rotation of the drive motor, thereby biasing the car against one or the other of the side walls of the track to guide the vehicle along its path of travel in one or the other of the lanes. The track includes electrical contact strips which supply power to the drive motor of the vehicles through current collectors mounted thereon.Type: GrantFiled: June 20, 1977Date of Patent: November 14, 1978Assignee: Ideal Toy CorporationInventor: Robert G. Lahr
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Patent number: 4078799Abstract: A toy vehicle game includes an endless track defining at least two parallelly extending vehicle lanes in which two or more toy vehicles are adapted to be operated. The toy vehicles each include a reversible rotary drive motor and a transmission operatively engaged between the motor and two drive wheels for rotating one or the other of the drive wheels in response to the direction of rotation of the drive motor, thereby biasing the car against one or the other of the side walls of the track to guide the vehicle along its path of travel in one or the other of the lanes. The track includes electrical contact strips which supply power to the drive motor of the vehicles through current collectors mounted thereon. A control system permits the operators to separately and independently control current to the contact strips and also to selectively reverse the polarity of the current so that the operators can vary the speed of their associated vehicles and cause the vehicles to move from one lane to the other.Type: GrantFiled: April 1, 1977Date of Patent: March 14, 1978Assignee: Ideal Toy CorporationInventor: Robert G. Lahr