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Robert S Hermann

George D Hermann

William G Hermann

Soft-tipped pole designs and methods for their use on pavement are disclosed. The soft, gripping pole tip can slow down a roller skier or skateboarder by slowing down the rider directly and by providing increased rider stability during breaking. This is accomplished by the rider pressing one or two pole tips against the pavement, with or without the use of a fulcrum point for increased leverage. The soft rubberlike tip has a large surface area that provides durability as well as variable levels of frictional force imparted against the pavement. The fulcrum for the pole can be the user's arm or leg as well as fulcrum element fastened to the rolling device.

Soft tipped pole and braking system for recreational use

A locking device of the type having a lock cylinder containing a lock plug with a threaded rod connected thereto in a manner causing rotation of the rod with rotation of the lock plug by a key operating the tumbler includes a relatively massive cylindrical lock housing having a bore extending axially therethrough, the lock cylinder being fastened against rotational and axial movements relative to the lock housing, and a relatively massive cylindrical sleeve member with a blind bore therein and a screw threaded surface arrangement in a portion of the blind bore for threadingly engaging the threaded rod. In accordance with a first embodiment, relative rotation between the lock housing and the sleeve member is prevented by a counterbore in an open end of the blind bore of the sleeve member of non-circular transverse cross section and a portion of the exterior of the lock housing of reduced circumference, non-circular transverse cross section that is at least partially receivable in the counterbore. In accordance with a second embodiment, such relative rotation between the lock housing and the sleeve member is effectuated by a pair of pivotally connected semi-annular shackle members, the sleeve and lock housing being tangentially secured to a free end of a respective one of each of the semi-annular members. A cover cap assembly is provided which weatherproofs the lock cylinder and may serve to protect and camouflage a fastening screw for the lock cylinder.

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Portola Valley, CA, United States of America

Robert S Hermann