Appeal No. 2002-0312 Page 3
Application No. 08/953,922
In reaching our decision in this appeal, we have given careful consideration to
the appellants’ specification and claims, to the applied prior art references, and to the
respective positions articulated by the appellants and the examiner. As a consequence
of our review, we make the determinations which follow.
This application is concerned with the reissue of U.S. Patent No. 5,524,368,
issued June 11, 1996. It seeks to correct several errors in the patent which, according
to the appellants, unduly limited the claims, as explained in the reissue declaration. The
invention relates generally to controls for snow plows of the type designed to be
connected to a vehicle such as a car or truck, and specifically to providing a wireless
remote control for such plows for the purpose of facilitating the installation and removal
of the plows from the vehicles. It accomplishes this by eliminating the need to provide
hard wiring for a control system between the vehicle cab and the snow plow blade and
the attendant electrical connections which must be coupled and uncoupled during these
operations. As manifested in claim 1, the invention comprises a snow plow blade
pivotally attached to the front of a plow mounting carriage having a rear removably
connectable to the front of a vehicle, a self-contained, battery powered, portable
transmitter which transmits an R.F. control signal and has controls for selectively
raising, lowering, and pivoting the snow plow blade, a receiver which receives R.F.
control signals sent by the transmitter and provides an output control signal in response
thereto, and an adjusting mechanism attached at least in part to the plow mounting
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