Patents by Inventor Stephen T. McCoy

Stephen T. McCoy 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: 5354347
    Abstract: A vacuum system which uses water as a filtration medium to effectively capture dirt and dust particles. The vacuum system uses a canister or tank, which can be placed on a wheeled mobile frame for mobility. Within the tank, a removeable insert includes a number of equally spaced annular plates with a first of the annular plates fitting snugly against the outside wall of the tank and the next plate fitting snugly against the outside wall of a central cylindrical column. The plates then continue to alternate from outside wall of the tank to the outside wall of the column to form alternating gaps and, thus, a serpentine airflow path. The bottom portion of the tank is filled with a quantity of water sufficient to cover the bottom of an air intake port. A blower draws air, along with accompanying debris, from the intake port through the water.
    Type: Grant
    Filed: March 29, 1993
    Date of Patent: October 11, 1994
    Assignee: E. B. S. Equipment Broker Services, Inc.
    Inventors: Stephen T. McCoy, Jack G. Clark, Jr.
  • Patent number: 5336410
    Abstract: The present invention relates to a hydrocyclone apparatus which is simple in design, more space efficient, and easier to maintain than prior art designs. The invention comprises a three chamber vessel wherein the inlet chamber is between the outlet and overflow chambers. Therefore, the inlets to the liners are between the plates dividing the vessel into separate chambers and the outlets from the liners extend directly into the end chambers the labyrinth of passages and conduits for the overflow liquid. The present invention includes a no bolt securing arrangement for securing the liners in the vessel. In particular, the liner includes a shoulder portion which abuts one of the dividing plates and an end cap which closes the open end of the vessel being in close proximity to the ends of the liners thereby securing the liners in the opening in the dividing plates. The shoulder further includes lobes to limit rotation of the shoulders.
    Type: Grant
    Filed: August 1, 1991
    Date of Patent: August 9, 1994
    Assignee: Conoco Specialty Products Inc.
    Inventors: Kevin J. O'Brien, Pete A. Thompson, Stephen T. McCoy
  • Patent number: 5249823
    Abstract: A cart comprises a load carrying bed, a front wheel carriage, a rear wheel carriage and a handle. The bed telescopes longitudinally to allow for loads of different lengths which are positionable directly upon the bed. A pair of front side arms and a pair of rear side arms are also telescopingly received relative to the bed and are adjustable laterally to provide for loads having different widths. The cart is collapsible into a low profile configuration for transport or storage.
    Type: Grant
    Filed: October 9, 1992
    Date of Patent: October 5, 1993
    Assignee: E.B.S. Equipment Services, Inc.
    Inventors: Stephen T. McCoy, Jack G. Clark, Jr.
  • Patent number: 5194150
    Abstract: The invention provides a highly space efficient solution to designing hydrocyclone vessels and the liners that are used therein. Moreover, the invention reduces the maintenance requirements for the vessels by providing the liners as units which are preassembled outside the vessel and installed in and out of the vessel without bolts or other minimally detailed process. The invention primarily includes a three chamber vessel wherein the inlet chamber is between the outlet and reject chambers. Therefore the inlet to the liners is between the plates dividing the chamber into separate chambers and the outlets from the liners extend straight into the end chambers. This avoids having to provide conduits from the reject end of the liner to a reject gallery in the plate or outside the vessel. Secondly, the design incorporated a no bolt design to secure the involute inlet into the liner and secure the liner into the opening in the plate.
    Type: Grant
    Filed: August 1, 1991
    Date of Patent: March 16, 1993
    Assignee: Conoco Specialty Products Inc.
    Inventors: Kevin J. O'Brien, Pete A. Thompson, Stephen T. McCoy
  • Patent number: D348132
    Type: Grant
    Filed: January 14, 1993
    Date of Patent: June 21, 1994
    Assignee: E.B.S. Equipment Broker Services, Inc.
    Inventors: Stephen T. McCoy, Jack G. Clark, Jr.