Patents by Inventor Rolf W. Bolwig

Rolf W. Bolwig 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).

  • Patent number: 4516192
    Abstract: A lamp carriage arm, adapted for attachment to a safety hat, is disclosed. The lamp carriage arm offers improved lighting for miners and other workers by virtue of the lamp being positioned roughly in the area of above and in front of the safety hat wearer's collarbone. The lamp carriage arm attaches at one end to one side of the safety hat, and extends downwardly in spaced relationship to the side of the safety hat wearer's head. Conventional lighting, e.g. a miner's lamp, is carried at the other end of the lamp carriage arm. Preferably, the attachment of the lamp to the carriage arm is pivotal, so that the direction of the lamp beam may be varied. Thus the use of a ball and socket joint is disclosed, although other means may be employed. Adjustment means for varying the position of the lamp are also disclosed.
    Type: Grant
    Filed: January 11, 1984
    Date of Patent: May 7, 1985
    Assignee: Rotabo Industries Inc.
    Inventor: Rolf W. Bolwig