Patents by Inventor R. Thomas Law

R. Thomas Law 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: 6039513
    Abstract: A separator for removing pellets from an air flow has a screen inclined to the path of the pellets and which deflects the pellets toward a pellet discharge member for subsequent delivery to a hot melt glue tank. The screen is detachably carried by an air outlet of the separator which, in turn, is detachably mounted on the separator. In a modified air outlet, stacked screens of decreasing aperture cross section are removably secured in place by a bayonet lock on the screens and air outlet.
    Type: Grant
    Filed: September 15, 1997
    Date of Patent: March 21, 2000
    Inventor: R. Thomas Law
  • Patent number: 5378089
    Abstract: One or more hot melt tanks are each periodically supplied by an air conduit which automatically transfers pellets from a storage container. A transducer assembly, positionable in the container, includes a vacuum transducer for the pick up of glue pellets for transfer via the air conduit. A vibrator imparts motion to the pellets to prevent bridging of same. Each hot melt tank includes a level switch with a probe which provides a signal to a control panel having relays which in turn actuate solenoid valves for the delivery of a pressurized air flow to one or more vacuum transducers. A portion of the pressurized air flow is bled off for supplying the vibrator in place on a base of the transducer assembly.
    Type: Grant
    Filed: March 1, 1993
    Date of Patent: January 3, 1995
    Inventor: R. Thomas Law