Patents by Inventor Allen A. Leach

Allen A. Leach 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).

  • Publication number: 20150232267
    Abstract: A portable hand held hoop made of PVC pipe which affords the opening of a plastic trash bag to remain open while collecting litter or other refuse so as not having to constantly fight with the bag to deposit the collection. Said bag is placed onto the hoop with the opening draping over the hoop and held securely on the hoop with a few plastic snap on damps provided.
    Type: Application
    Filed: November 6, 2014
    Publication date: August 20, 2015
    Inventor: David Allen Leach
  • Patent number: 6426026
    Abstract: Disclosed is a process for pelletizing high melt flow crystalline polymers to produce crystalline pellet products. The process includes feeding a polyolefin granular or pelleted polymer into a melting/mixing mechanism to provide a molten polymer material. The molten polymer material is optionally passed through a melt pump and through a die to form a plurality of molten polymer strands. The plurality of molten polymer strands then are passed through or along a water trough declined with respect to the direction of the horizontal arrays where they are sprayed with cool liquid a plurality of times in such a manner that the sprayed cool liquid creates turbulent flow and disturbs a thin film of hot water and/or steam that forms around each molten polymer strand as it is cooled without undesirable axial acceleration of the polymer strands. Subjecting the molten polymer strands to such a cooling procedure produces cooled polymer strands, which then are fed to a cutting mechanism and cut into pellets.
    Type: Grant
    Filed: December 28, 1999
    Date of Patent: July 30, 2002
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Marios Avgousti, Edward Allen Leach, Alex Kharazi
  • Patent number: 4848398
    Abstract: An intake relief valve is provided with a gate in the form of a ball cock which rotates in a horizontal plane on a vertical axis by means of a swivel pin and sector gear turned by a worm gear and wheel. The gear box housing is at the top of the valve and its exposed upper surface carries the markings "close", "1/4", "1/2", "3/4", and "open". The swivel pin carries a needle indicator, exterior of the gear box, to move from one marking to the other to show the degree of opening of the valve. The ball cock closes the valve ports, one of which is screened. It forms an annular compartment with the valve housing through which liquid may pass to the pressure relief valve in the lower portion of the valve whether the ball cock is in open or closed position.
    Type: Grant
    Filed: May 3, 1988
    Date of Patent: July 18, 1989
    Assignee: Jaffrey Fire Protection Co., Inc.
    Inventor: Allen A. Leach