Gilbert E Losi

51782510, Jan 12, 1993

Aug 1, 1991

7/738857

Gilbert E. Losi - Chino CA

Team Losi, Inc. - Chino CA

F16D 1344
F16D 4320
F16D 4706

192 483

A drive train protection device for a miniature racing vehicle is provided. The device is disposed along the drive train between the vehicle motor and the transmission. The vehicle motor rotates an engagement wheel about an axis of rotation. The engagement wheel is frictionally engaged to a shaft section by a clutch. The shaft section is engaged to the transmission. An impeller is disposed about the shaft section within an impeller housing. The impeller is free to rotate about the shaft section but the impeller housing is affixed to the shaft section and, therefore, must rotate with the shaft section. The impeller is linked to rotate with the engagement wheel. The impeller housing is filled with a viscous liquid which resists the rotation of the impeller. Thus, the drive train is protected from over-torquing by the clutch connection between the engagement wheel and the shaft section, but slippage under normal racing conditions is minimized by the resistance to impeller rotation provided by the viscous liquid.

20060089202, Apr 27, 2006

Apr 27, 2005

11/115727

Gilbert Losi - Upland CA, US

F16D 3/62

464114000

A constant velocity universal joint system and method of substantially eliminating a pulsating angular velocity difference in such system comprises an input universal joint including an input shaft, an input coupling, and an input drive pin, and an output universal joint including an output shaft, an output coupling, and an output drive pin. A tubular coupler couples the input universal joint to the output universal joint, and the tubular coupler has a passage therethrough, and an end of the input and output shafts, the input and output couplings and the input and output drive pins as positioned in the passage. The input drive pin couples the input coupling to the coupler, and the input coupling couples the input shaft to the input drive pin such that the input shaft can both tilt and rotate relative to the input drive pin. The output drive pin couples the output coupling to the coupler, and the output coupling couples the output shaft to the output drive pin such that the output shaft also can both tilt and rotate relative to the output drive pin. A substantially spherical projection is positioned on an end of one of the shafts and a receptacle is positioned on an end of the other of the shafts. The projection extends into the receptacle when at least one of the shafts tilts or rotates to support the shafts, and the projection and receptacle are positioned in the coupler passage. The end of the input and output shafts has a first opening to receive the input and output couplings respectively therein, and a second opening in the ends to receive the input and output drive pins respectively therethrough, the first and second openings also are positioned in the coupler passage, and the second openings are slotted to permit the ends of the input and output shafts to tilt relative to their respective drive pins. The ends of the input and output shafts which include the first and second openings are also substantially spherical and are positioned in the coupler passage, and the drive pins are fixed against movement along their axis relative to the coupler either by a screw in the input and output couplings or by heat shrinkable tubing which is heat shrunk about the coupler.