Heavy-duty mechanical oscillator
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Jul 8, 1997
Grant Date -
N/A
app pub date -
Nov 17, 1995
filing date -
Nov 17, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A heavy-duty mechanical/oscillator utilizes a shaft having an endless cam groove in its periphery, and a nut body carried by and slidable along the peripheral portion of the shaft. A roller pin on the nut body, extends into and engages a wall of the endless groove. The roller pin's nose portion is conical, whereby the pin is subjected to oblique loading having both intense radial and lesser axial components. Paired anti-friction roller bearings carried by the nut body in turn rotatably mount the roller pin. The bearings include a primary oblique-loading roller bearing disposed adjacent the nose portion of the roller pin and oriented to counter the intense radial forces and lesser axial forces experienced by the nose portion, and a secondary oblique-loading roller bearing located adjacent the primary bearing and engaged with a tail portion of the roller pin. The secondary roller bearing is oriented to mainly counter radial forces experienced by the nose portion. The device is characterized by extreme ruggedness, and long life expectancy over extended periods of operation.
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