Patents by Inventor Dennis R. Henderson

Dennis R. Henderson 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: 20020141135
    Abstract: A dielectric fluid of refined soybean oil with additives of cycloaliphatic epoxide resin and butylated hydroxtolene covered in the winding of a metallized polypropylene film capacitor to prevent trapped air and moisture being absorbed in the winding.
    Type: Application
    Filed: March 30, 2001
    Publication date: October 3, 2002
    Inventors: Dennis R. Henderson, Christopher M. Baldwin
  • Patent number: 4841608
    Abstract: Capacitor bodies are usually carried in open ended containers. The open ends are then closed with a cover or capacitor top after the capacitor body is inserted in the container. Electrical leads are then attached to terminals carried by the capacitor top. Prior art methods of forming such tops involved insert molding. The present invention starts with a preformed plastic disc with two apertures for terminals and a boss for positioning lead attachment. The terminals and a positioning lead are then applied to the disc through a combination of riveting and ultrasonic swaging.
    Type: Grant
    Filed: January 16, 1987
    Date of Patent: June 27, 1989
    Assignee: Aerovox M, Inc.
    Inventors: C. Wayne Hodges, Dennis R. Henderson, Edwin R. Koons
  • Patent number: 4486809
    Abstract: A capacitor body that is carried in a container is anchored within the container by a cup-shaped member that is disposed at opposite ends of the capacitor body. Each cup-shaped member includes a spike which engages the ends of the capacitor body to hold it in place.In a preferred embodiment, the spike is cylindrical and engages a hollow core having a bore that is hexagonal in cross-section.
    Type: Grant
    Filed: July 30, 1982
    Date of Patent: December 4, 1984
    Assignee: Emhart Industries, Inc.
    Inventors: Paul S. Deak, Dennis R. Henderson, Gerald A. Voyles
  • Patent number: 4339786
    Abstract: An electrical device includes a housing having an open end for receiving an electrical component, the housing including an inwardly extending flange located in proximity to the open end and the flange having surface area facing into the housing and away from the open end, anchoring structure adapted for positioning between the electrical component and the open end, the anchoring structure including a hub and at least two arms extending radially outwardly from the hub, the arms including radially extending ends having an effective distance therebetween which is larger than the size of the open end of the housing, and an abutment for abutting the hub against the electrical component, the arms being adapted for concave resilient deflection thereof into the housing for creating a biasing force against the electrical component and for reducing the effective distance between the radially extending ends for permitting installation of the anchoring structure into the open end and past the flange for engaging the radi
    Type: Grant
    Filed: April 28, 1980
    Date of Patent: July 13, 1982
    Assignee: Emhart Industries, Inc.
    Inventors: William J. Evans, Dennis R. Henderson
  • Patent number: 4039904
    Abstract: An intermediate precoat layer is provided for encapsulated electrical devices such as solid electrolyte tantalum capacitors. The intermediate precoat layer contains a resin material selected from the group of acrylic, styrene, cellulose acetate, polyvinyl chloride and certain epoxy type materials. The intermediate precoat layer of the present invention helps to stabilize electrical characteristics in the electrical devices such as reducing the DC leakage current in solid electrolyte tantalum capacitors after encapsulation by a protective layer.
    Type: Grant
    Filed: January 2, 1976
    Date of Patent: August 2, 1977
    Assignee: P. R. Mallory & Co., Inc.
    Inventors: Gerhart P. Klein, Milton Kallianidis, Paul J. Christiansen, Dennis R. Henderson