Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 4557059 | Athletic running shoe An athletic shoe having a sole bottom which is contoured in the region of first foot strike along the lateral border to provide an arcuate landing surface which curves upwardly toward the lateral side edge of the sole and away from the ground surface and ... | 12/10/1985 |
| 4546559 | Athletic shoe for track and field use An athletic shoe for track and field use, especially a running shoe, is formed in such a way that a flexible running sole is provided only in the area of its running surface and, thus, largely does not exist in the area of the longitudinal arch of the foo... | 10/15/1985 |
| 4536974 | Shoe with deflective and compressionable mid-sole A shoe containing a plurality of pairs of transverse ribs provided between the mid-sole and the outer sole. All of the ribs are provided with at least one bowed or convex surface running the length of the rib. When weight is placed upon the sole, each of ... | 08/27/1985 |
| 4501077 | Sole for boots and shoes This invention pertains to soles for boots and shoes. More particularly, it pertains to a sole that is useful for mountain climbing boots, hiking boots, walking shoes, and work shoes. This invention reveals a sole for boots, shoes and the like including a ... | 02/26/1985 |
| 4495323 | Solvent resistant polymeric composition A polymeric composition having good hardness, stiffness and tear strength and good resistance to flex cracking, solvent attack and abrasion comprises a radial monoalkenyl arene-conjugated diene block copolymers, a linear low density polyethylene, hydrocar... | 01/22/1985 |
| 4494321 | Shock resistant shoe sole A shock absorbent shoe sole (10) including an upper sole (14) and a bottom sole (12) attached to the bottom of the upper sole, the bottom sole including one or more inverted cups (22, and 24) disposed therein; each cup is located directly beneath and poin... | 01/22/1985 |
| 4494320 | Shoe outsole An outsole (10) for incorporation in a shoe or the like includes a generally shoe-shaped member of rubber-like material lower portion (14) contiguous with the lower surface of having an upper surface and a ground contacting bottom surface (19), the bottom... | 01/22/1985 |
| 4463505 | Sole An improved sole for footwear comprising an insole unit having an axially extending surface and a peripheral rib projecting downwardly from the surface for stitching the insole to the upper of the footwear, a midsole attached to the insole, the insole and... | 08/07/1984 |
| 4445285 | Shoe sole A shoe sole for application to the underside of a shoe includes a sole element having substantially convex upper and lower surfaces. The sole element may have a toe portion at one end thereof and the thickness of the sole element adjacent to the toe porti... | 05/01/1984 |
| 4439936 | Shock attenuating outer sole An outer sole for an athletic shoe is disclosed. The outer sole includes a base formed of a relatively thin resilient material and having a heel section, an arch section, a forefoot section, a toe section, an upper major surface and a lower major surface.... | 04/03/1984 |
| 4405730 | Polyvinyl chloride shoe sole composition This invention covers a shoe sole composition compounded from polyvinyl chloride and organic cellulosic flock, and the shoe sole product produced therefrom.... | 09/20/1983 |
| 4377655 | Dull, smooth unit soles Unit soles having a smooth, dull appearance are molded from a polymeric composition comprising a mixture of linear ABA and radial (AB)--BA monoalkenyl arene/conjugated diene block copolymers, a styrene-acrylonitrile copolymer, vulcanized vegetable oil, hy... | 03/22/1983 |
| 4343727 | Polyvinyl chloride shoe sole molding composition containing cellulosic fibrous flock This invention covers a shoe sole composition compounded from polyvinyl chloride and organic cellulosic flock, and the shoe sole product produced therefrom.... | 08/10/1982 |
| 4314413 | Sports shoe A sports shoe has an extension to the sole of the shoe projecting rearwardly at the heel end, which extension is springily resilient or can be supported by resilient means on the shoe. A stiffener, for example, a metal plate can be provided to enable the ... | 02/09/1982 |
| 4287307 | Integral skin microcellular polyester base polyurethane elastomers Synthesis of integral skin microcellular polyurethane elatomers by reacting hydroxyl-terminated aliphatic polyesters with symmetrical diisocyanates, prepolymers of these isocyanates such as derived from p,p'-diphenylmethane diisocyanate and an aliphatic g... | 09/01/1981 |
| 4262435 | Athletic shoe An improved athletic shoe in which the solepiece has a wedge to facilitate supporting the runner's foot when contacting the ground; the toe box section being provided with pleats to allow expansion for toe movement when the foot flexes; the solepiece is p... | 04/21/1981 |
| 4262433 | Sole body for footwear A sole body for footwear including a longitudinally extending body having an upturned fore part extending rearwardly from the front end of the sole body which terminates in a front groove extending transversely of and in the bottom thereof. A central rock... | 04/21/1981 |
| 4238894 | Article of footwear with a backward extension to the sole An article of footwear is disclosed for enabling a sufferer or potential sufferer of postural low back pain to lean backwards. An integral portion of a ground - engaging sole of the article is a projection which extends backwards at least one inch behind ... | 12/16/1980 |
| 4041619 | Shoe The specification describes a shoe, particularly of the moccasin type, having a sole body which is shaped, as viewed from above, substantially to conform to the shape of the foot so that it has a so-called "natural" shape. The sole of the shoe is lasted s... | 08/16/1977 |
| 4041618 | Contoured sole for high heeled shoes A substantially flexible unitary wedge-shaped unit sole for high heeled shoes is disclosed contoured with compound curves in the side bottom surfaces thereof to enhance the comfort and stability of the wearer while at rest, and further to enhance the stri... | 08/16/1977 |
| 4026044 | Article of footwear and method of making same An article of footwear wherein a rubber-like shoe base portion is joined to a shoe upper and vulcanized in conjunction therewith so as to form an integrally bonded construction while concurrently being molded so as to define at least the bottom surface pa... | 05/31/1977 |
| 3982336 | Athletic shoe with a detachable sole An athletic shoe has a shoe portion with a sole having a number of projections extending from the sole. A detachable sole with a number of cleats or the like extending therefrom has grooves designed to mate with the projections on the sole of the shoe. Ea... | 09/28/1976 |
| 3964181 | Shoe construction A shoe construction is described for improving the posture of the wearer, as well as reducing the wear on the rearward edge of the heel, without substantially changing the exterior appearance from conventional shoes. This is accomplished by hollowing out ... | 06/22/1976 |
