Patents by Inventor Leslie H. Utman

Leslie H. Utman 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).

  • Trailer coupler lock with protective housing
    Patent number: 4648618
    Abstract: A locking device for an assembled trailer hitch include a lock mounted within a protective metal housing. The lock is adapted to receive the legs of a U-shaped shackle. The lock is mounted for movement within the housing by mounting components connected to the lock by adhesive foam tape. One of the locking components includes a ramp making an angle generally about 30 degrees to the bottom of the housing for camming the shackle legs upwardly into operative association with the lock. At the top of the ramp upturned ears are formed which make an angle of about 30 degrees with respect to the direction of shackle movement to further cam the shackle legs into operative association with the lock.
    Type: Grant
    Filed: June 11, 1985
    Date of Patent: March 10, 1987
    Inventors: Leslie H. Utman, M S Rifkin