Laminated Patents (Class 36/30R)
  • Patent number: 4374460
    Abstract: The object of the invention is to provide a shoe sole which prevents the build up of static electricity to the degree that a shock occurs when a shoe is worn while walking across a floor covering such as a carpet. Electrically conductive elements in the shoe sole are unnecessary. Alteration of the carpet is unnecessary. A build up of static electric charge between the shoe sole and the floor covering is prevented when the sole has a bottom portion made from substantially the same material as the surface of the floor covering.Shoe (1) having sole (2) is used for walking across floor covering (4). The bottom portion (3) of sole (2) is made from substantially the same material as floor covering surface (5). The bottom portion (3) may be a coating which may be brushed or sprayed on. Bottom portion (3) may also be a film material which adheres to the remainder of sole (2) by means of a pressure sensitive adhesive.
    Type: Grant
    Filed: August 11, 1981
    Date of Patent: February 22, 1983
    Inventor: Marvin S. Towsend
  • Patent number: 4372059
    Abstract: This shoe sole has a resiliently deformable, arch-supporting middle segment extending between a heel-supporting rear segment and a toe-supporting front segment. The middle segment has an upwardly projecting, longitudinally convex, top face and a downwardly projecting, longitudinally convex, bottom face which, when flattened by the wearer's weight, pushes the top face up against the wearer's arch.
    Type: Grant
    Filed: March 4, 1981
    Date of Patent: February 8, 1983
    Inventor: Frank Ambrose
  • Patent number: 4366630
    Abstract: The invention concerns a composite sole for use in safety footwear, as well as a combination heel and sole and a complete article of footwear, the composite sole comprising an inner sole of electrically conducting material, and a thin flexible outer sole up to about 8 mm thick of electrically conducting material, said outer sole being spaced from the inner sole and connected thereto at a plurality of positions in an electrically conducting manner. Electrically conducting plastics spacer plugs can be used as the connection between the inner and outer soles.
    Type: Grant
    Filed: December 1, 1980
    Date of Patent: January 4, 1983
    Assignee: AECI Limited
    Inventor: Leslie I. Bloom
  • Patent number: 4364189
    Abstract: A sports running shoe constructed to minimize impact shock and to maximize lateral stability. The shoe's midsole is formed with a medial layer portion having one overall firmness, and a lateral layer portion having a lesser overall firmness.
    Type: Grant
    Filed: December 5, 1980
    Date of Patent: December 21, 1982
    Inventor: Barry T. Bates
  • Patent number: 4364188
    Abstract: A running shoe having an outer sole and a midsole. The midsole comprises a forefoot portion, an arch portion and a heel portion all formed of a resilient material having a first durometer sufficiently low to provide good cushioning and impact absorption. Rear foot stabilization means in the form of a mass of resilient material is located and confined within the midsole adjacent the medial side of the heel portion. The durometer of the stabilization means is higher than the durometer of the midsole to provide resistance to compression at the medial side of the heel portion, thereby lessening the tendency of the shoe to overpronation. In one embodiment, the stabilization means comprises plural plugs confined fully within the midsole. In another embodiment, the stabilization means extend through the outsole and into the insole.
    Type: Grant
    Filed: October 6, 1980
    Date of Patent: December 21, 1982
    Assignee: Wolverine World Wide, Inc.
    Inventors: Jerome A. Turner, George W. Dietel
  • Patent number: 4354318
    Abstract: An athletic shoe (10) having an upper (12) and a sole (14) is disclosed. The sole (14) includes an intermediate sole layer (16) of a resilient cushioning material. A bead (46) is disposed about the perimeter of the shoe in the heel spring section to enhance the heel stability.
    Type: Grant
    Filed: August 20, 1980
    Date of Patent: October 19, 1982
    Assignee: BRS, Inc.
    Inventors: Edward C. Frederick, Joseph J. Murphy, James T. Gorman, Steven J. Burris
  • Patent number: 4349970
    Abstract: A shoe upper easily connected by a connecting device to a lower member or mid sole having a lattice structure. The shoe also includes additional connecting devices to releasably connect the heel to the mid sole and upper. The outer sole is connected to the mid sole by glue or double-sided tape. The mid sole is made from a synthetic material which allows breathing through the apertures in the lattice structure. Also, the outer sole and heel are removeably attached to the mid sole and upper to provide a shoe that may be resoled and reheeled inexpensively using ordinary tools.
    Type: Grant
    Filed: August 25, 1980
    Date of Patent: September 21, 1982
    Inventor: Samuel Silver
  • Patent number: 4348821
    Abstract: A shoe sole structure is provided with an upper surface adapted to receive and support the entire foot of the wearer, the sole structure being resilient throughout the full length of its under surface, having a toe portion forwardly of the metatarsal arch region which is easily bendable, but having a relatively stiff and rigid upper surface from the metatarsal region rearwardly to the heel. The sole structure has an elevated central pedestal under the instep region and a separate impact pad underneath the heel, the heel impact pad being very resilient while the central pedestal has limited resiliency. In a running action the heel impact pad absorbs an initial impact with the ground, the central pedestal then provides a rolling support for the entire foot, and finally the bending of the toe portion of the sole structure provides an effective and well-controlled take-off.
    Type: Grant
    Filed: June 2, 1980
    Date of Patent: September 14, 1982
    Inventor: Alexander C. Daswick
  • Patent number: 4347673
    Abstract: A sole for footwear made of thermoplastic of sufficient transparency to permit display of the bottom of the article of footwear to which it is attached. In various embodiments of the invention an at least semitransparent thermoplastic sole is attached to an article of footwear with a patterned insole or inlay adjacent to the top of the sole and protected thereby or with a patterned inlay embedded within the thermoplastic sole. In a preferred embodiment an, at least, semi-transparent composition is provided by a blend of predominantly elastomeric block polymer and predominantly nonelastomeric block polymer with each of the block polymer types chosen from radial and linear block copolymers of conjugated, diene and monovinyl substituted hydrocarbon.
    Type: Grant
    Filed: November 4, 1980
    Date of Patent: September 7, 1982
    Assignee: Phillips Petroleum Company
    Inventor: Joseph F. Svetlik
  • Patent number: 4335530
    Abstract: A shoe sole construction which features an outer sole (18) having at least one opening (26) through which a protrusion (30) of a less dense midsole (16) extends. The cutout area (26) of the more dense outsole (18) decreases the overall weight of the sole (12), while the less dense protrusion (30) aids in cushioning the foot to provide greater comfort and support. Other protrusions (32 and 68) may also be provided through other openings in the outsole to further lessen weight and increase the cushioning effect on the foot. Additionally, grooves (42) may be provided on the upper surface (40) of the midsole (16) to increase flexibility of the sole (12) and further aid in cushioning the foot and providing peripheral support were needed. The invention may be applied to athletic shoes (FIGS. 1-9), a woman's high-heeled shoe (FIGS. 10-14), or other footwear.
    Type: Grant
    Filed: May 6, 1980
    Date of Patent: June 22, 1982
    Inventor: Jerry D. Stubblefield
  • Patent number: 4335528
    Abstract: A sport shoe in which the shoe sole is bonded to an insert layer during the formation of the shoe sole by injection-molding and the assembly of the shoe sole and the insert layer is secured to the shoe upper by an adhesive applied between the insert layer and the shoe upper.
    Type: Grant
    Filed: February 12, 1980
    Date of Patent: June 22, 1982
    Assignee: Daicel Chemical Industries, Ltd.
    Inventor: Morio Watanabe
  • Patent number: 4316332
    Abstract: An athletic shoe construction having shock absorbing elements in the heel and forefoot areas of the sole portion of the shoe which elements are surrounded on their sides by comparatively hard rim portions of a sole shell or mid-sole.
    Type: Grant
    Filed: November 7, 1980
    Date of Patent: February 23, 1982
    Assignee: Comfort Products, Inc.
    Inventors: Erik O. Giese, Alexander L. Gross
  • Patent number: 4302861
    Abstract: A shoe buildup and a method for making the same wherein a block of rigid foam material is cut and shaped to follow the contour of an existing shoe and is then preferably adhesively secured to the sole of the shoe. Although the buildup may be formed of one piece, it is generally formed in two parts, one for the front portion of the shoe and one for the heel portion thereof. After the buildups have been attached, a ground engaging second sole and a heel are nailed to the bottoms of the buildups. Side coverings of leather or other appropriate material may be adhesively secured to the front and rear buildups to provide a finished shoe having an attractive appearance.
    Type: Grant
    Filed: April 1, 1980
    Date of Patent: December 1, 1981
    Inventor: Earl E. Coppock
  • Patent number: 4297796
    Abstract: A shock-absorbing athletic shoe having a foot-cushioning inner sole member to one face in which, and to at least a portion of the rim in which, is bonded an open-mesh web. The web includes elongated, interwoven stretch-resistant strands which are disposed at oblique angles relative to the shoe's long axis. These strands act as force-transmitters with respect to the sole member, and cause a localized foot-produced deformation in the member to be "distributed" to other regions in the member.
    Type: Grant
    Filed: July 23, 1979
    Date of Patent: November 3, 1981
    Inventors: Ronald H. Stirtz, Bill Dellinger
  • Patent number: 4275512
    Abstract: A durable sandal includes a composition rubber sole, a first composition rubber insole, and a unitary leather element including four straps and a second insole section of substantially the same shape as the first insole. Two of the straps having buckles attached thereto are substantially shorter than the other two and extend from one edge of the second insole section. The other two straps extend from an opposite edge of the second insole section. The unitary leather element is aligned with and peripherally sewn to the top surface of first composition rubber insole. The bottom surface of the composition rubber insole is adhesively bonded to an upper surface of the composition rubber sole.
    Type: Grant
    Filed: October 22, 1979
    Date of Patent: June 30, 1981
    Assignee: Frontier Footwear Corporation
    Inventors: Robert Zeligman, John R. Zengerle
  • Patent number: 4274211
    Abstract: The invention relates to a shoe sole made of flexible rubber material with a non-slip profile on the wearing side.
    Type: Grant
    Filed: March 28, 1979
    Date of Patent: June 23, 1981
    Inventor: Herbert Funck
  • Patent number: 4271607
    Abstract: A sole-unit for protective footwear comprising a prefabricated tread sole of a heat resistant plastic material, for example of nitrile rubber, with open-top cavities in the heel region and a steel plate inlay in a region directly beneath the inner sole of the upper shoe.
    Type: Grant
    Filed: August 8, 1979
    Date of Patent: June 9, 1981
    Inventor: Herbert Funck
  • Patent number: 4259792
    Abstract: The invention concerns an article of footwear comprising a footwear upper attached to a footwear base, said footwear base comprising a sole part and a heel part, said heel part having an upper surface on which the weight of a person's foot will press and a lower surface adapted to contact the ground, the area of the lower surface being greater than the area of the upper surface, said lower surface extending outside vertical planes passing through the upper surface at the periphery of the upper surface on both sides of the heel part and behind the heel part, and a peripheral ridge extending upwardly from the surface on which the weight of a person's foot will press, said peripheral ridge flaring outwardly on both sides of the heel part and behind the heel part. The flaring occurs from the top of the ridge to the lower surface of the heel part. The upper inner surface of the heel part is attached to the footwear upper. The article of footwear may be a shoe, especially a running shoe.
    Type: Grant
    Filed: July 27, 1979
    Date of Patent: April 7, 1981
    Inventor: Johan P. Halberstadt
  • Patent number: 4251932
    Abstract: A first sheet of rubber adapted to be put under a shoe and secured in place over the top of the shoe has a sole portion made up of the first sheet of rubber, a layer of foam rubber and an inner layer of sheet rubber sewn to the first sheet to enclose the foam rubber. The device provides cushioning comfort for the feet of the wearer while standing, walking or running on hard surfaces.
    Type: Grant
    Filed: July 5, 1979
    Date of Patent: February 24, 1981
    Inventor: Flossie M. Love
  • Patent number: 4246708
    Abstract: An athletic or sport shoe, for instance a cross-country skiing shoe or a tennis shoe is disclosed, which has a sole formed of, for instance, polyurethane which is molded at the upper portion of the shoe. In the material of the polyurethane sole there is molded a resilient or spring plate, formed of a suitable metal or plastic. The resilient plate is provided at its front region with flange means serving as support or contact means for the ski binding jaw or the like and holes or perforations for the binding pins or mandrils. The resilient plate extends over essentially the entire length of the shoe sole and is only visible through its flanges at the sole edges. The plate is structured such that at the region of the ball of the foot it is easier to resiliently bend while at the region of the shoe stiffener it is practically hardly resiliently bendable, so that the rolling-off of the foot is possible practically without any hinderance, but the foot is supported laterally and against torsion.
    Type: Grant
    Filed: September 24, 1979
    Date of Patent: January 27, 1981
    Assignee: "Montana-Research" Muller and Co.
    Inventor: Janez Gladek
  • Patent number: 4245406
    Abstract: A shoe and its method of manufacture in which an upper and preformed rubber outsole are joined by a foamed polyurethane, injection-molded midsole. The rubber outsole and polyurethane foam midsole combine to provide a lightweight and flexible shoe compressively conformable to the flexing foot and having strong traction and long wear.
    Type: Grant
    Filed: May 3, 1979
    Date of Patent: January 20, 1981
    Assignee: Brookfield Athletic Shoe Company, Inc.
    Inventors: David L. Landay, Alvan H. Wolf
  • Patent number: 4241523
    Abstract: A shoe having improved fastening means for holding it upon a wearer's foot includes a tongue having fingers extending laterally from each of its sides. Slits are formed in each side wall of the shoe near to the shoe sole. The fingers extending from each side of the tongue pass through the slits in the associated side wall and then in a reverse direction to extend over the upper surface of the shoe, where the two sets of fingers are fastened together.A shoe having improved means for supporting and protecting the foot of the wearer includes a relatively flat rigid supporting base for the foot. A relatively rigid rocker member which is longitudinally curved to form a load-bearing pedestal is placed beneath the base. One end of the rocker member is pivotally secured to the base and the other end is spaced from it. The space between the rocker member and the base is filled with resilient material.
    Type: Grant
    Filed: September 25, 1978
    Date of Patent: December 30, 1980
    Inventor: Alexander C. Daswick
  • Patent number: 4240214
    Abstract: To improve the walking motion of the foot in the area of the big toe, a foot-supporting sole features a rigid section which, in the area of the little toe extends further forward than in the area of the hallux ball.
    Type: Grant
    Filed: June 22, 1978
    Date of Patent: December 23, 1980
    Inventors: Rolf Sigle, Jakob Sigle
  • Patent number: 4228600
    Abstract: A shoe bottom comprising a flexible foam having at least one surface with open or opened cells, and a film of an elastomeric material covering the open or opened cells of said surface. Advantageously the foam is an initially flexible closed-cell crosslinked polyolefin foam and the film is an elastomeric polyurethane of a thickness of about 0.1 to 0.3 mm.
    Type: Grant
    Filed: February 5, 1979
    Date of Patent: October 21, 1980
    Assignee: Firma Carl Freudenberg
    Inventors: Hans-Dietrich Krug, Willi Mildenberger
  • Patent number: 4224748
    Abstract: The invention relates to an injection molded, raised heel, shoe sole structure of improved strength characteristics. The shoe sole consists of (i) a unitary shoe sole member comprising a raised heel, a foot supporting member and a shank portion connecting the heel and the foot supporting member; (ii) a toplift member positioned on the terminal portion of the raised heel of the sole member; and (iii) a free-standing metallic support member embedded within the full length of the heel and a portion of the shank portion of the sole member. The toplift member is attached to and supported by a free end of the metallic support member.
    Type: Grant
    Filed: March 23, 1979
    Date of Patent: September 30, 1980
    Assignee: Meramec Industries, Inc.
    Inventor: Raymond Whitchurch
  • Patent number: 4224747
    Abstract: A moccasin having a continuous vamp defining the insole beneath the foot and the sides of the moccasin. The vamp is connected to the upper at the top of the moccasin. The moccasin has a wear and scuff resistant outer sole, which includes an integral side wall that extends up to and is secured to the sides of the vamp. The outer sole is shaped by a midsole which is secured therein. A full cushion pad, extending toe to heel is provided between the midsole and the underside of the vamp of the moccasin. In addition, a heel cushion pad of substantially the same thickness as the full cushion pad is provided between the full cushion pad and the heel portion of the underside of the vamp. The heel cushion pad is skived at its front end to avoid any ridge which might be annoying to the foot. The full advantage of the cushioned softness and feel of a moccasin is achieved while wear resistance and protection against ground texture and hazards are provided.
    Type: Grant
    Filed: January 10, 1979
    Date of Patent: September 30, 1980
    Inventor: Sidney Winfield
  • Patent number: 4222185
    Abstract: A shoe sole, especially for summer footwear such as sandals, comprises an outsole and an insole of substantially identical outline molded from plastic material. The outsole is provided along its periphery with a set of solid upstanding studs, molded integral therewith, which have reduced tips received in bores of the insole and form shoulders abutting the latter whereby the two sole members are spacedly interconnected. The insole has an array of venting apertures between which it is provided with depending pins over the major part of its area that act as supplemental spacers by coming to rest on the outsole. Other peripheral formations on the outsole, in the shape of flat tubes, enter complementary slots of the insole to form channels for the passage of straps.
    Type: Grant
    Filed: April 4, 1979
    Date of Patent: September 16, 1980
    Inventor: Nello Giaccaglia
  • Patent number: 4202116
    Abstract: A tread for a sport shoe which includes a sole having projections extending outwardly from a tread surface. The tread includes a one-piece, thin-walled, metal part with at least two separate, dimensionally reinforced surface sections bearing the integrally molded projections. The reinforced surface sections may include a plurality of embossed, smooth-surfaced and/or bevelled projections. The metal part is fixedly attached to an inner surface of the shoe sole by either a thin wire grid embedded in the synthetic resin sole or uniformly distributed perforations.
    Type: Grant
    Filed: September 12, 1978
    Date of Patent: May 13, 1980
    Inventor: Armin A. Dassler
  • Patent number: 4186500
    Abstract: A cross-country ski boot having a sole and upper section integrally formed of plastics material. The upper section has a toe portion in a front part thereof and a heel portion in a rear part thereof. A foot entrance opening is provided above the heel portion and a securement portion is associated with the foot entrance opening to secure a foot in the boot. A liner is positioned within the upper section over an inner face of the sole section and upper section. The sole and upper sections are molded on a sole plate insert to impart stiffness to the sole section while permitting flexing in the sole along an area transverse to the long axis of the sole section intermediate a front foot and a rear heel portion of the sole to permit the heel portion of the foot to be lifted off a surface while the toe portion of the boot is immovably secured.
    Type: Grant
    Filed: April 27, 1978
    Date of Patent: February 5, 1980
    Assignee: Tyrol Shoe Co. Ltd.
    Inventor: Otto Salzman
  • Patent number: 4182055
    Abstract: A shoe construction including a pre-formed unitary sole member made from a flexible, resilient material and including a concave top face pre-shaped to fit the bottom of the wearer's foot. The outer marginal portion of the bottom face of the sole member is recessed to form a stitching land for securing the sole member directly to the forepart lower marginal portion of the shoe upper. A soft, resilient sole filler member may be secured to the top face of the sole member, with the rear portion of the sole filler member being secured to the front portion of the shank tuck.
    Type: Grant
    Filed: October 13, 1977
    Date of Patent: January 8, 1980
    Assignee: Genesco, Inc.
    Inventor: Newton C. Turner, Jr.
  • Patent number: 4151661
    Abstract: A method of manufacturing non-yellowing polyurethane shoe soles which comprises coating a non-yellowing polyurethane composition on the inner surface of a mould for shaping soles, subsequently casting a foamable polyurethane composition into the mould, and curing the compositions, whereby a non-yellowing polyurethane outer layer and a foamed polyurethane sole base are formed and integrally united together to give the shoe sole; and non-yellowing shoe soles thus obtained.
    Type: Grant
    Filed: September 19, 1977
    Date of Patent: May 1, 1979
    Assignee: Nihon Soflan Chemical & Engineering Co. Ltd.
    Inventors: Junji Namba, Shizuo Kageyama
  • Patent number: 4134220
    Abstract: A sports shoe, in particular a tennis shoe, has a sole made of rubber or flexible plastics material and a protective layer of chrome-tanned leather is applied to the running surface of the sole at least in the area which is subject to wear, namely in the area of the point of the shoe, for wear resistance purposes.
    Type: Grant
    Filed: July 27, 1977
    Date of Patent: January 16, 1979
    Inventor: Adolf Dassler
  • Patent number: 4130947
    Abstract: A sole for footwear, especially sports footwear, has a lower layer provided with transverse ribs and an upper shock-absorbing layer. The lower layer may be of natural rubber of Shore hardness from 55 to 60 and the upper layer of lower-density natural or synthetic rubber of Shore hardness about 40.
    Type: Grant
    Filed: July 28, 1977
    Date of Patent: December 26, 1978
    Assignee: Adidas Fabrique de Chaussures de Sport
    Inventor: Francis Denu
  • Patent number: 4128950
    Abstract: An athletic shoe of reduced weight is described employing low density, closed cell, synthetic plastic foam for an intermediate sole layer and/or heel lift sole layer between a harder outer sole layer and the shoe upper. The foam is a polyethylene or ethylene vinyl acetate foam having a density not substantially less than 5 pounds per cubic foot, preferably at least 7 pounds per cubic foot. A lateral extending heel stabilizer plate of solid plastic material or a heel lift layer having a relatively hard outer border portion may be added to improve lateral stability.
    Type: Grant
    Filed: February 7, 1977
    Date of Patent: December 12, 1978
    Assignee: BRS, Inc.
    Inventors: William J. Bowerman, Stanley L. James, Dennis E. Vixie
  • Patent number: 4124946
    Abstract: This invention relates to a supporting insole built into a shoe or other article of footwear, and to the article of footwear containing said insole, the insole being shaped to conform to the plantar surface of a human foot and seated in a recess in the outsole to which the insole and upper are attached.
    Type: Grant
    Filed: April 4, 1977
    Date of Patent: November 14, 1978
    Assignee: Scholl, Inc.
    Inventor: Benjamin B. A. Tomlin
  • Patent number: 4079526
    Abstract: A footwear includes a bottom body formed from soft synthetic resin and a hard or semihard core material laid on the bottom body. The bottom body has a pressure projection protruding upwards from the upper face of the core material and there is provided a fitting construction for the core material of the peripheral edge of the pressure projection, whereby the core material is secured to the bottom body at the fitting construction. The pressure projection of this footwear provides a comfortable wearing feeling and strongly locks the core material laid on the bottom body, preventing disengagement thereof from the bottom body.
    Type: Grant
    Filed: December 13, 1976
    Date of Patent: March 21, 1978
    Inventor: Tatsuo Fukuoka
  • Patent number: 4069601
    Abstract: An article of footwear including a platform, an upper vamp, a bottom sole and an insole. The platform includes first and second uniformly thick layers of foam rubber having a given density extending throughout the toe and heel portions of the platform, and a third layer of foam rubber having a greater density positioned between the first and second layers in the heel portion of the platform and terminating in a wedge pointing away from the heel portion for providing a platform in which the bottom surface of the platform is relatively flat and the top surface of the platform is raised in the heel portion. The upper vamp includes a thong attached to the toe portion of the platform, and side straps attached to the thong and to opposite sides of the heel portion of the platform. The side straps flare out in width from the thong to a width of at least 11/2 inches where the side straps are attached to the heel portion. The bottom sole consists of crepe rubber and extends over the bottom surface of the platform.
    Type: Grant
    Filed: December 23, 1976
    Date of Patent: January 24, 1978
    Assignee: Young Californian Shoes, Inc.
    Inventors: Thomas Richard Robbins, Stephen Edson Cunliffe
  • Patent number: 4053995
    Abstract: An orthopedic shoe including: a flat, level sole having a peripheral shape corresponding to that of the bottom plane of a foot and whose toe portion is very broad and of substantially constant width, whose central, metatarsal portion curves rapidly inwardly to a narrow neck connecting the toe portion with a heel portion, the ratio of the widths of the toe and heel portions being approximately 100 to 60, and the ratio of the toe portion to the neck of the central portion being approximately 100 to 40, the inner sole being formed in a plurality of layers at least of one of which is of compressible material capable of permanently conforming to the shape of the bottom of a foot under pressure of wearing; combined with an upper having a counter, a vamp and a toe portion, the vamp including a pair of widely spaced forwardly projecting flaps each including a row of eyelets and extending along the upper parts of the sides of the foot, the toe portion having a wide rearwardly extending tongue for covering the metatars
    Type: Grant
    Filed: July 23, 1976
    Date of Patent: October 18, 1977
    Inventor: Melvin Shein
  • Patent number: 4050168
    Abstract: An attachment for footwear having a sole is provided and comprises at least one raised symbol detachably mounted to the sole by a pressure sensitive adhesive. With the symbol or symbols arranged as desired on the sole, the outline of the symbol is imprinted on a soft ground supporting surface as the sole engages the ground by walking or the like.
    Type: Grant
    Filed: June 14, 1976
    Date of Patent: September 27, 1977
    Inventor: Carl E. Pace
  • Patent number: 4030213
    Abstract: The present invention relates to certain novel and valuable improvements in sporting shoes used for running or jogging.
    Type: Grant
    Filed: September 30, 1976
    Date of Patent: June 21, 1977
    Inventor: Alexander C. Daswick
  • Patent number: 4020569
    Abstract: A sole of a footwear comprises a soft sole body provided at a rear half thereof with at least one upwardly opening recess and a rigid or semi-rigid reinforcing plate serving also as an insole which is mounted on said rear half of said sole body so as to cover said recess.
    Type: Grant
    Filed: August 11, 1975
    Date of Patent: May 3, 1977
    Inventor: Tatsuo Fukuoka
  • Patent number: 3972135
    Abstract: A platform for footwear utilizing a rigid or semi-rigid body of polyurethane foam having a layer of fabric integral with the body and forming the upper surface of the platform. The polyurethane body also has a layer of fabric integral therewith and forming the lower surface of the platform. The platform does not crack or crumble under repeated flexings in the stressed ball-of-the-foot area.
    Type: Grant
    Filed: May 22, 1975
    Date of Patent: August 3, 1976
    Assignee: Uniroyal Inc.
    Inventor: Thaddeus Pietraszek
  • Patent number: RE31173
    Abstract: .[.The present invention relates to certain novel and valuable improvements in sporting shoes used for running or jogging..]..Iadd.A sporting shoe has a relatively rigid sole whose longitudinal center portion is convexly curved in a longitudinal direction to form a pedestal about which the shoe rotates. It also has resilient sole portions at the heel and toe. .Iaddend.
    Type: Grant
    Filed: August 17, 1979
    Date of Patent: March 15, 1983
    Inventor: Alexander C. Daswick