Patents by Inventor Cyril K. Edwards

Cyril K. Edwards 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).

  • Fastener delivery tube
    Patent number: 5398860
    Abstract: A fastener delivery tube (21) incorporates an internal guide (22)--such as a continuous sleeve lining, flexible, or resiliently deformable spring strips (34, 37, 38) or re-circulating balls (54)--forming a longitudinally movable constriction, inhibiting fastener free-fall through the tube and preserving fastener orientation, by maintaining fastener (25) contact with a driving plunger (28) in its passage there-through and upon exit there-from into contact with a workpiece.
    Type: Grant
    Filed: April 20, 1993
    Date of Patent: March 21, 1995
    Inventor: Cyril K. Edwards
  • Lockable closure fastening and tamper evident closure
    Patent number: 5197617
    Abstract: A closure (30) for an aperture (70) with a co-operative peripheral rim profile, such as the mouth of a container, the closure incorporating a self-locking fastener element (40) which cooperates with the rim profile and locks the closure on to the aperture upon limiting engagement thereof.
    Type: Grant
    Filed: October 12, 1990
    Date of Patent: March 30, 1993
    Assignee: Ariel Industries plc
    Inventor: Cyril K. Edwards
  • Method and apparatus for hydroponic cultivation
    Patent number: 4953322
    Abstract: A method of growing a plant hydroponically wherein nutrient solution is drawn by surface tension from a nutrient supply and conveyed to the root system of said plant by a layer of hydrophilic material, said nutrient solution passing at least intermittently in one direction across said root system thereby removing exudates from said root system to a collecting area while supplying said plant's requirements for nutrients and water.
    Type: Grant
    Filed: March 6, 1989
    Date of Patent: September 4, 1990
    Inventor: Cyril K. Edwards
  • Container closure
    Patent number: 4448325
    Abstract: The closure includes a pressure equalization element which can be manipulated to expose an aperture (17) in the closure (10) and thereby allow pressure in the headspace of the container to adjust to ambient pressure. The element has an upper member (21a) which overlies the aperture and a lower member (21b) adhered to the underside of the closure so as to lie beneath the aperture and which is connected by a connecting member (27) to the upper member.
    Type: Grant
    Filed: July 12, 1982
    Date of Patent: May 15, 1984
    Assignee: Thomas Hunter Limited
    Inventors: Cyril K. Edwards, Edward H. Webb
  • Fastener delivery tube
    Patent number: RE40395
    Abstract: A fastener delivery tube (21) incorporates an internal guide (22)—such as a continuous sleeve lining, flexible, or resiliently deformable spring strips (34, 37, 38) or re-circulating balls (54)—forming a longitudinally movable constriction, inhibiting fastener free-fall through the tube and preserving fastener orientation, by maintaining fastener (25) contact with a driving plunger (28) in its passage there-through and upon exit there-from into contact with a workpiece.
    Type: Grant
    Filed: August 5, 2002
    Date of Patent: June 24, 2008
    Inventor: Cyril K. Edwards