Patents by Inventor Donald M. Pohler

Donald M. Pohler 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: 8235316
    Abstract: A macerating apparatus for a toilet in which the problem of jamming the macerator at startup is solved by rapidly detecting the flushing of the toilet and accelerating the macerator before motion-jamming solid objects in the effluent from the toilet can reach the macerator. The macerating apparatus may be comprised of a macerating cutter operatively connected to a motor, and a sensor in communication with the motor. The sensor may detect the flow of effluent from the toilet toward the macerator, the flow of makeup water from the supply tank into the toilet, or the mechanical action of the mechanism used to flush the toilet. The apparatus may include an intake basket having an asymmetric inlet tube and containing the macerating cutter, wherein the asymmetry of the inlet tube provides additional operating clearance between a cutting blade of the macerating cutter and the intake basket.
    Type: Grant
    Filed: June 27, 2011
    Date of Patent: August 7, 2012
    Assignee: Liberty Pumps, Inc.
    Inventors: Matthew S. Heinsler, Donald M. Pohler, David M. Williams
  • Patent number: 7563082
    Abstract: A cover assembly for covering a vessel comprising a main cover comprising at least a first outlet opening adapted for connection to a pipe, and a second opening surrounded by a flat region adapted for placement of a gasket; an access cover comprising a flat region adapted for mating with the flat region of the main cover; and provisions for the sealing of at least one cord passing between the main cover and the access cover. In other embodiments, the cover assembly is provided with an engagement feature adapted for engagement with a hook-shaped hanger rod. Sewage basin assemblies are also provided which incorporate these cover assemblies.
    Type: Grant
    Filed: April 21, 2005
    Date of Patent: July 21, 2009
    Assignee: Liberty Pumps Inc.
    Inventor: Donald M. Pohler
  • Patent number: 7537439
    Abstract: A portable self-priming transfer pump comprising a one piece unitary housing, comprised of a first portion that houses a motor, a second casing portion within which is formed a pump cavity, and a handle; and a one piece cover fitted to the outboard end of the second portion of the housing.
    Type: Grant
    Filed: April 15, 2004
    Date of Patent: May 26, 2009
    Assignee: Liberty Pumps Inc.
    Inventor: Donald M. Pohler
  • Patent number: 7520736
    Abstract: A cover assembly for covering a vessel comprising a main cover comprising at least a first outlet opening adapted for connection to a pipe, and a second opening surrounded by a flat region adapted for placement of a gasket; an access cover comprising a flat region adapted for mating with the flat region of the main cover; and provisions for the sealing of at least one cord passing between the main cover and the access cover. In other embodiments, the cover assembly is provided with an engagement feature adapted for engagement with a hook-shaped hanger rod. Sewage basin assemblies are also provided which incorporate these cover assemblies.
    Type: Grant
    Filed: March 29, 2005
    Date of Patent: April 21, 2009
    Assignee: Liberty Pumps Inc.
    Inventor: Donald M. Pohler
  • Patent number: 6430757
    Abstract: A self-contained bathroom waste collection and disposal unit, having an access cover free of electrical and plumbing fixtures is disclosed. The unit includes a reservoir having an inlet and a sump opening. The sump opening is sized to receive a pump and a float mechanism therethrough. The sump opening is closed by a primary cover having venting, plumbing and electrical ports and an access cover. The access cover can be removed to access the enclosed sump, without interrupting the venting, plumbing or electrical connections.
    Type: Grant
    Filed: April 21, 2000
    Date of Patent: August 13, 2002
    Assignee: Liberty Pumps Inc.
    Inventor: Donald M Pohler
  • Patent number: D500770
    Type: Grant
    Filed: February 19, 2004
    Date of Patent: January 11, 2005
    Assignee: Liberty Pumps
    Inventor: Donald M. Pohler