Patents by Inventor David Calder

David Calder 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: 11910779
    Abstract: The invention is directed to an animal marking and treatment apparatus. The marking apparatus is an animal treatment apparatus to apply an animal treatment to a surface or subcutaneous layer of an animal via an operative end. The marking apparatus includes a marking portion, attached to the animal treatment apparatus, and located at the operative end. The marking apparatus is located such that when the animal receives the treatment the marking portion marks the animal by stamping at the same time.
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: February 27, 2024
    Assignee: Datamars SA
    Inventor: David Calder
  • Patent number: 11440272
    Abstract: Impregnated veil and compression molding process of reinforcing fiber pre-impregnated continuous and discontinuous thermoset and thermoplastic materials. Veils are incorporated within the process, filming or laminating stages of the pre-pregging, either hotmelt or solvent based processes, in a variety of chosen resins. The veils help to improve visual part quality, reduce fiber splitting, and provide an isolating material in applications where incompatible materials must exist.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: September 13, 2022
    Assignee: Magna Exteriors Inc.
    Inventors: John A. Ingram, David A. Calder, Daniel P. McNulty, Paul A. Trudeau, Henry E. Moore
  • Publication number: 20200307123
    Abstract: Impregnated veil and compression molding process of reinforcing fiber pre-impregnated continuous and discontinuous thermoset and thermoplastic materials. Veils are incorporated within the process, filming or laminating stages of the pre-pregging, either hotmelt or solvent based processes, in a variety of chosen resins. The veils help to improve visual part quality, reduce fiber splitting, and provide an isolating material in applications where incompatible materials must exist.
    Type: Application
    Filed: December 14, 2016
    Publication date: October 1, 2020
    Inventors: John A. Ingram, David A. Calder, Daniel P. McNulty, Paul A. Trudeau, Henry E. Moore
  • Publication number: 20190037804
    Abstract: The invention is directed to an animal marking and treatment apparatus. The marking apparatus is an animal treatment apparatus to apply an animal treatment to a surface or subcutaneous layer of an animal via an operative end. The marking apparatus includes a marking portion, attached to the animal treatment apparatus, and located at the operative end. The marking apparatus is located such that when the animal receives the treatment the marking portion marks the animal by stamping at the same time.
    Type: Application
    Filed: August 1, 2018
    Publication date: February 7, 2019
    Applicant: Simcro Limited
    Inventor: David Calder
  • Publication number: 20110173754
    Abstract: An inflatable pillow usable in a first mode for a person sleeping on their back and in a second mode for a person sleeping on their side, wherein the pillow when inflated has a profile which features a generally flat base for stable support of the pillow, a first end wall curving upwardly to a first height, and an opposed end wall curving upwardly to a second height, the end walls leading to the upper surface of the pillow which inclines downwardly from each end wall into a valley within the central part of the pillow, wherein the first height is greater than the second height, and when used in the first mode the pillow is orientated so that the end wall of greater height and upper surface provide support for the upper spine region and head of a person lying on their back, and when the pillow is used in the second mode, the end wall of lesser height and the upper surface provide support for the upper spine region and head of a person lying on their side.
    Type: Application
    Filed: January 19, 2011
    Publication date: July 21, 2011
    Applicant: ARTOON PTY LTD
    Inventor: Michael David Calder
  • Patent number: 5072474
    Abstract: The invention relates to a method of constructing a cable-stayed bridge extending between at least three towers. Initially, a horizontally extending truss spanning from a first tower to a second tower is moved longitudinally to be projected from the second tower to a third tower. The truss is then elevated. A plurality of stay cables are then strung from an elevated location on the second tower to a series of temporary connections to the truss on both sides of the second tower. A deck portion is then constructed on the truss on both sides of the second tower, and the cables that are not connected to the truss are connected to this deck portion. Finally, the cables are disconnected from the truss and the truss and hence the deck portion are lowered, causing the cables to support the weight of the deck and to acquire the desired tensional stresses. The procedure is faster than hitherto know methods of constructing this type of bridge.
    Type: Grant
    Filed: July 12, 1990
    Date of Patent: December 17, 1991
    Inventors: Walter H. Dilger, Gamil S. Tadros, David Calder, Paul B. Giannelia
  • Patent number: 4069180
    Abstract: Polyacrylate elastomers are prepared by polymerizing a mixture of an acrylate monomer and a diolefin such as isoprene to yield a polymer containing carbon-to-carbon unsaturation and this polymer is then treated with bromine to yield a bromine containing acrylate polymer which is curable with zinc oxide, zinc oxide and sulphur or sulphur and alkali metal salts of fatty acids.
    Type: Grant
    Filed: July 30, 1975
    Date of Patent: January 17, 1978
    Assignee: Polysar Limited
    Inventor: David Calder Chalmers