Patents by Inventor Phillip J. Campbell

Phillip J. Campbell 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).

  • Enhanced heat exchange tube
    Patent number: 6164370
    Abstract: A heat exchange tube for air conditioning and refrigeration applications is internally enhanced with helically arranged fins. The fins are separated from adjacent fins by a trough. The heat transfer coefficient is increased by forming the fins with a height-to-trough width ratio, h:T, of from 1.3:1 to 2.5:1. A further gain in heat transfer coefficient is achieved by fins having a normalized height (fin height/tube inside diameter) of at least 0.02.
    Type: Grant
    Filed: September 24, 1998
    Date of Patent: December 26, 2000
    Assignee: Olin Corporation
    Inventors: Peter W. Robinson, Brian C. Stacks, Daniel J. Angeli, Phillip J. Campbell, Myron R. Randlett, Ralph L. Webb
  • Press-to-open dispensing closure
    Patent number: 5273177
    Abstract: A press-to-open dispensing closure with a flexible arcual top surface(22) in convex orientation is provided which includes a flexible, aperture cover(26) having an arcuate hinging connection to the top surface. The hinging connection of the appeture cover articulates between a convexly arcuate closed condition and a concavely arcuate open position.
    Type: Grant
    Filed: July 20, 1992
    Date of Patent: December 28, 1993
    Inventor: Phillip J. Campbell
  • Liquid dispensing bottle cap with integral value and actuator
    Patent number: 5044529
    Abstract: A unitary liquid dispensing cap with integral actuator and valve assemblies is provided which includes a centrally located bellows to provide a restoring force to drive the valve back to the closed position after dispensing the liquid. A guide is provided for the valve and includes projections which cooperate with mating projections on the valve assembly to control movement of the valve. The valve assembly may be cocked to provide positive sealing of the dispensing passage by the valve.
    Type: Grant
    Filed: July 29, 1989
    Date of Patent: September 3, 1991
    Inventor: Phillip J. Campbell