Patents by Inventor Leslie F. Irving

Leslie F. Irving 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: 5387384
    Abstract: A mold apparatus for use in manufacturing bespoke complementarily contoured cushion members such, for example, as cushion insole members for footware for subjects with foot deformities employs a large multiplicity of rods 15 supported at their ends by first and second flexible membranes 17, 19 formed from a medium viscosity silicone rubber. Under finger pressure applied at a surface say 19a of the membrane 19, the membrane 19 is locally deformed, the rods 15 sliding with respect to one another so as to produce complementary deformation at surface 17a of the other membrane 17. Clamp means 18 is operable by increasing friction between the rods 15 to prevent the rods from subsequent relative sliding movement.Using the apparatus a bespoke cushioned insole for footwear may be produced to complementarily conform with the contoured surface 19a created by pressing the latter surface into intimate contact with a subject foot whilst the foot is in contact with the surface 17a.
    Type: Grant
    Filed: April 30, 1992
    Date of Patent: February 7, 1995
    Inventor: Leslie F. Irving
  • Patent number: 4239032
    Abstract: A portable water container which incorporates a solar heating panel. One wall of the portable container consists of an outer transparent/translucent panel and an inner heat-absorbing panel which is spaced from the outer panel. The inner panel may be ribbed or otherwise formed to improve heat-exchange.
    Type: Grant
    Filed: February 21, 1978
    Date of Patent: December 16, 1980
    Inventor: Leslie F. Irving