Patents by Inventor William C. Armstrong

William C. Armstrong 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: 5822900
    Abstract: The vehicle signalling device 2 comprises a frame 10, a rotating drum 40 having multiple sides 46 mounted to the frame 10 for displaying predetermined messages, a pivoting shutter 100 mounted to the frame 10 that shields an observable view of the drum 40 as the drum 40 rotates to the desired message for display and a hand-held trigger grip 206 operatively and independently connected to the drum 40 and the shutter 100 for selective activation. The drum 40 rotates by activating an index arm 64 and a first pawl 74 assembly engaging a first ratchet wheel 56 mounted to a drum first end wall 42. The drum 40 and the shutter 100 are activated by either transferring a force supplied by an operator's hand, or by activating electric first and second motors 278 and 288, respectively. Also, the drum 40 can be illuminated by a lamp 318 mounted within the drum 40.
    Type: Grant
    Filed: July 19, 1996
    Date of Patent: October 20, 1998
    Inventor: William C. Armstrong