Land vehicles – Skates – Wheeled skate
Patent
1979-02-21
1981-02-17
Silverstrim, John P.
Land vehicles
Skates
Wheeled skate
280 8704A, A63C 1702
Patent
active
042510872
ABSTRACT:
Truck apparatus for skate and skateboard devices including an elongated kingpin, means for affixing the upper end of the kingpin to the bottom of a load carrying platform at a selected angle and having a member disposed midway along the length of the kingpin and a friction surface and stop means, a wheel axle carriage assembly pivotally affixed to the lower end of the kingpin and adapted to rotate about the axis of the kingpin and having a second friction surface and stop lugs, a resilient drag sleeve and turn restoring element compressively disposed between the first and second friction surfaces, and a lock nut for selectively urging the carriage assembly toward the mid-portioned member so as to compress the drag sleeve between the first and second friction surfaces with a predetermined compression force such that the carriage assembly may be resistively and partially resiliently rotated about the axis of the kingpin within a range determined by the interaction of the stop lugs and the stop means and with a degree of freedom determined by the compression of the drag sleeve.
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Hamrick Claude A. S.
Royalty Investors
Silverstrim John P.
Smith Milton L.
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