Patents by Inventor Thomas H. Liedel

Thomas H. Liedel 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: 4509672
    Abstract: There is disclosed herein an improved header construction for use with fin and tube type heat exchangers which includes a base member having a plurality of tubular projections extending outward from a center interconnecting portion and a pair of oppositely extending substantially parallel spaced apart flange portions extending generally perpendicular to the interconnecting portion. A cover member is also included which has an interconnecting portion with a pair of similarly generally perpendicularly outwardly projecting subtantially parallel flange portions which are spaced apart a distance slightly less than the distance between the flange portions provided on the base member so as to be received between and adjacent to respective of the base member flange portions.
    Type: Grant
    Filed: February 8, 1983
    Date of Patent: April 9, 1985
    Assignee: Karmazin Products Corporation
    Inventors: Ivan D. Woodhull, Jr., Thomas H. Liedel
  • Patent number: 4381033
    Abstract: There is disclosed herein an improved header construction for use with fin and tube type heat exchangers which allows for an increased number of radiating fins to be incorporated into a heat exchanger of any predetermined size. This header construction includes a base member having a plurality of tubular projections extending outward from a center interconnecting portion and a pair of oppositely extending substantially parallel spaced apart flange portions extending generally perpendicular to the interconnecting portions. A cover member is also included which has an interconnecting portion with a pair of similarly generally perpendicularly outwardly projecting substantially parallel flange portions which are spaced apart a distance slightly less than the distance between the flange portions provided on the base member so as to be received between and adjacent to respective of the base member flange portions.
    Type: Grant
    Filed: April 3, 1981
    Date of Patent: April 26, 1983
    Assignee: Karmazin Products Corporation
    Inventors: Ivan D. Woodhull, Jr., Thomas H. Liedel
  • Patent number: 4243094
    Abstract: There is disclosed herein an improved multipass condenser construction having provisions therein which allow the condensate formed from each pass through the core portion thereof to by-pass substantially all of the remaining core portions thereby promoting maximum efficiency of the condenser. The condenser comprises a pair of vertically extending headers each having a plurality of baffles provided therein and an interconnecting core structure. The baffles are arranged so as to cause a gaseous fluid to flow through the core structure in alternating directions so as to be cooled and condensed to a liquid state. Each of the baffles is provided with a small aperture which allows condensate formed from each pass of the gaseous fluid through the core structure to by-pass the remaining portions of the core and flow directly to the lower end of the headers.
    Type: Grant
    Filed: January 11, 1979
    Date of Patent: January 6, 1981
    Assignee: Karmazin Products Corporation
    Inventors: Ivan D. Woodhull, Jr., Thomas H. Liedel
  • Patent number: 4141409
    Abstract: There is disclosed herein an improved multipass condenser construction having provisions therein which allow the condensate formed from each pass through the core portion thereof to by-pass substantially all of the remaining core portions thereby promoting maximum efficiency of the condenser. The condenser comprises a pair of vertically extending headers each having a plurality of baffles provided therein and an interconnecting core structure. The baffles are arranged so as to cause a gaseous fluid to flow through the core structure in alternating directions so as to be cooled and condensed to a liquid state. Each of the baffles is provided with a small aperture which allows condensate formed from each pass of the gaseous fluid through the core structure to by-pass the remaining portions of the core and flow directly to the lower end of the headers.
    Type: Grant
    Filed: April 21, 1977
    Date of Patent: February 27, 1979
    Assignee: Karmazin Products Corporation
    Inventors: Ivan D. Woodhull, Jr., Thomas H. Liedel