Patents by Inventor Stephen J. Wylde

Stephen J. Wylde 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).

  • Lens surface former and polishing tool
    Patent number: 5307592
    Abstract: A lens surface former and polishing tool of one-piece construction and made, for example, of aluminium, aluminium alloy or a zinc-based alloy with one side surface of the block being of convex form and the other side surface of the block being of concave form, in which, projecting radially from the cylindrical peripheral surface of the main part of the block, is an annular flange or ledge which is interrupted at equi-distant points by four tapered location grooves or slots extending longitudinally of the tool so as to be parallel to the longitudinal axis of the tool, the flange or ledge with its tapered grooves or slots thereby permitting the tool to be quickly mounted on holding means forming part of a lens-grinding or lens-generating machine.
    Type: Grant
    Filed: March 10, 1992
    Date of Patent: May 3, 1994
    Inventor: Stephen J. Wylde
  • Lens location block
    Patent number: 5216455
    Abstract: A bi-focal or multi-focal lens element or blank of synthetic plastics material is supported by a lens location block releasably molded on to the front face of the lens element or blank, the material of the block being comparatively inexpensive non-metallic material so that the block can be thrown away after the element or blank has been released from the block.
    Type: Grant
    Filed: November 26, 1991
    Date of Patent: June 1, 1993
    Inventor: Stephen J. Wylde
  • Lens location block
    Patent number: 5114221
    Abstract: A bi-focal or multi-focal lens element or blank of synthetic plastics material is supported by a lens location block releasably moulded on to the front face of the lens element or blank, the material of the block being comparatively inexpensive non-metallic material so that the block can be thrown away after the element or blank has been released from the block.
    Type: Grant
    Filed: September 1, 1989
    Date of Patent: May 19, 1992
    Inventor: Stephen J. Wylde
  • Lens lapping pad
    Patent number: 4962618
    Abstract: A lens lapping pad comprising a zinc alloy foil having a thickness of about 0.1 mm, and a backing of cloth impregnated with a pressure sensitive adhesive, to give an overall pad thickness of about 0.5 mm. A peelable cover may protect the cloth backing.
    Type: Grant
    Filed: January 19, 1990
    Date of Patent: October 16, 1990
    Assignee: J & S Wylde, Ltd.
    Inventor: Stephen J. Wylde
  • Friction grip pad
    Patent number: 4274232
    Abstract: For application to the working surface of a tool for grinding, lapping or polishing optical lenses; a base pad comprising a flexible carrier layer, an adhesive film on one side of the carrier layer by which the pad can be adhered to the working surface of the tool, and a friction-grip surface on the other side of the carrier layer adapted to frictionally grip the lower surface of a lens-working pad applied to it whereby the use of an adhesive between the two pads is avoided.
    Type: Grant
    Filed: July 7, 1978
    Date of Patent: June 23, 1981
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Stephen J. Wylde