Patents by Inventor Darrell S. Caldwell

Darrell S. Caldwell 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: 6447407
    Abstract: A golf accessory device is shown which includes a shaft having a first and second oppositely arranged shaft ends. A ball retrieval suction cup is affixed to the first shaft end. A ball mark repair tool is affixed to the oppositely arranged second shaft end. A hook located at approximately the ball mark repair tool on the shaft is sized for use in picking up objects which are lying in a horizontal position on a surrounding playing surface.
    Type: Grant
    Filed: November 7, 2000
    Date of Patent: September 10, 2002
    Inventor: Darrell S. Caldwell
  • Publication number: 20020055401
    Abstract: A golf accessory device is shown which includes a shaft having a first and second oppositely arranged shaft ends. A ball retrieval suction cup is affixed to the first shaft end. A ball mark repair tool is affixed to the oppositely arranged second shaft end. A hook located at approximately the ball mark repair tool on the shaft allows a user to pick up objects which are lying in a horizontal position on a surrounding playing surface without bending.
    Type: Application
    Filed: November 26, 2001
    Publication date: May 9, 2002
    Inventor: Darrell S. Caldwell
  • Patent number: 4969457
    Abstract: A face mask (10) is provided for covering the mouth and nose of a wearer (14). The mask (10) prevents the passage of liquid from external to the mask to the face of the wearer (14). The mask (10) has four layers including a special low density polyethylene barrier (26). The barrier (26) prevents the passage of liquid in at least one direction while freely allowing the passage of gases in both directions.
    Type: Grant
    Filed: September 29, 1989
    Date of Patent: November 13, 1990
    Assignee: Tecnol, Inc.
    Inventors: Vance M. Hubbard, Welton K. Brunson, Darrell S. Caldwell
  • Patent number: 4920960
    Abstract: A face mask (10) is provided for covering the mouth and nose of a wearer (14). The mask (10) prevents the passage of liquid from external to the mask to the face of the wearer (14). The mask (10) has four layers including a special low density polyethylene barrier (26). The barrier (26) prevents the passage of liquid in at least one direction while freely allowing the passage of gases in both directions.
    Type: Grant
    Filed: October 2, 1987
    Date of Patent: May 1, 1990
    Assignee: Tecnol, Inc.
    Inventors: Vance M. Hubbard, Welton K. Brunson, Darrell S. Caldwell
  • Patent number: 4688572
    Abstract: A thermal pack having a first pocket (12) and a second pocket (28) connected together by a stretchable material section (22), and therapeutic material holding bladders (14, 30) insertable into respective pockets. A pair of stretchable and Velcro-equipped straps (16, 18) attached to one pocket (28) are engagable with a brushed pile surface (20) of the other pocket (12). The pockets (12, 28) are constructed having a liner (34) for wicking to the outer surface moisture condensed on the bladders (14, 30), and constructed having a durable nonstretchable outer layer (32, 42).
    Type: Grant
    Filed: January 21, 1986
    Date of Patent: August 25, 1987
    Assignee: Tecnol, Inc.
    Inventors: Vance M. Hubbard, Welton K. Brunson, Darrell S. Caldwell
  • Patent number: D293933
    Type: Grant
    Filed: September 6, 1985
    Date of Patent: January 26, 1988
    Assignee: Tecnol, Inc.
    Inventors: Vance M. Hubbard, Welton K. Brunson, Darrell S. Caldwell