US2757461A - Floatable slip-resistant shoe - Google Patents

Floatable slip-resistant shoe Download PDF

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Publication number
US2757461A
US2757461A US446735A US44673554A US2757461A US 2757461 A US2757461 A US 2757461A US 446735 A US446735 A US 446735A US 44673554 A US44673554 A US 44673554A US 2757461 A US2757461 A US 2757461A
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US
United States
Prior art keywords
sole
shoe
slip
floatable
specific gravity
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US446735A
Inventor
Edgar B Cartmell
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
United States Rubber Co
Original Assignee
United States Rubber Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by United States Rubber Co filed Critical United States Rubber Co
Priority to US446735A priority Critical patent/US2757461A/en
Application granted granted Critical
Publication of US2757461A publication Critical patent/US2757461A/en
Anticipated expiration legal-status Critical
Application status is Expired - Lifetime legal-status Critical

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Classifications

    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43BCHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00Soles; Sole and heel units
    • A43B13/14Soles; Sole and heel units characterised by the constructive form
    • A43B13/22Soles made slip-preventing or wear-resisting, e.g. by impregnation or spreading a wear-resisting layer
    • A43B13/223Profiled soles
    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43BCHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00Soles; Sole and heel units
    • A43B13/02Soles; Sole and heel units characterised by the material
    • A43B13/04Soles; Sole and heel units characterised by the material plastics, rubber or vulcanised fibre
    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43BCHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B3/00Footwear characterised by the shape or the use
    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43BCHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B5/00Footwear for sporting purposes
    • A43B5/08Bathing shoes ; Aquatic sports shoes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D35/00Producing footwear
    • B29D35/12Producing parts thereof, e.g. soles, heels, uppers, by a moulding technique
    • B29D35/122Soles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2021/00Use of unspecified rubbers as moulding material

Description

Aug. 7, 1956 E. B. CARTMELL FLOATABLE SLIPRESISTANT SHOE Filed July 50, 1954 INVENTOR. 5064/? 6. CA/PTMEZZ ATT mgr United StatesPatent O 2,750,461 FLOATABLE SLIP-RESISTANT SHOE Edgar B. Cartmell, Bethany, Conm, assignor to United States Rubber Company, New York, N. Y., a corporation of New Jersey Application July 30, 1954, Serial No. 446,735 2 Claims. (Cl. 36-25) tire shoe, and the shoes are made slip-resistant by slitting the tread surface of the soles. To provide the shoes with the floatable characteristic, the soles are made of closed cell, flexible soft resilient plastic material, which is nonwater absorbent. Such material has good wear resistant qualities, and has the further surface.

The closed cell non-water absorbent material has improved slip resistant qualities as compared to non-cellular rubbery materials heretofore used in soles, and when cellular rubbery material.

The foregoing and other objects and advantages of this invention are further described in reference to the accompanying drawings, in which Fig. l is a perspective view of the bottom and side of the shoe and showing the slitted tread surface of the outsole;

Fig. 2 is a transverse section through the shoe on line 2-2 of Fig. l; and

Fig. 3 is an enlarged section of the tread surface of the outsole enclosed within the square formed by the dot and dash lines in Fig.

Referring to the drawings, the shoe embodying this invention comprises an outsole 11, which is secured to an upper 12 by any conventional means. As illustrated herein, the upper 12 may be made of canvas and lasted over an insole 13, to which the usual filler material 14 is applied, and the outsole 11 is bonded to the bottom of such upper with a suitable cement in the conventional manner.

to form closed cell cellular material. The sole 11 and heel piece 15 may be molded in one piece, or the tread parts may be cut from molded sheet material and cemented together.

After the outsole 11 has been formed and before it is applied to the shoe, the tread surface thereof is provided with transverse saw-tooth slits 16. Such slits are made by cuts, or incisions made into the rubber to a depth of about one-eighth of an inch and spaced from p and curing agents.

each other in the heel to toe direction a distance of about of an inch. The incisions may be made into the tread surface as described in United States Patent No. 2,284,307 to Paul A. Sperry, granted May 26, 1942. The walls of the slits remain closed when the sole is not stressed and prevent the entry of dirt or foreign matter, but such slits open up under the pressure of the footv on a slippery Wet boat deck. The exposed corners of the open slits Wipes the wet surface dry as a squeegee and prevents slippage. may be made from suitable plastic compositions containing rubbery materials, and blowing The following composition is given as an example:

Composition Ingredients In processing the above composition all of the ingredients excepting the Cellogen and sulphur are mixed on a Banbury machine. The Banbury mix is then put on a calender and mixed with the Cellogen and sulphur. The stock is calendered to the required thickness to make a sole of the desired thickness after expansion. For example to make a sole having a thickness of .750 inch,

terial has the resistance required for sole material, al-

While the preferred form of this invention has been described herein more or less in detail, it is to be undersuch changes in the appended claims.

Having thus described my invention, what I ciaim and desire to protect by Letters Patent is:

l. A shoe comprising a woven textile fabric upper and a sole having as a whole a specific gravity less than Water, said sole being composed of flexible, cellular, nonwater absorbent plastic material having a closed gas filled cell structure and a specific gravity of from .30 to .90,

and said sole having a thiekness of at least one-half inch nd tread surface pr ided with closely spaced trans: versely extending slits.

2. A shoe comprising a Woven textile fabric upper and sole having as a whole a specific gravity less than water and a h kness. of at leas one-half inch, id l in composed of flexible, cellular, non-water absorbent plas: tic materiel haying a closed gas filled cell structure and a specific gravity of from .30 to .90, and said sole having a slip-resistant tread surface provided with transversely extending slits spaced from each other in the heel to toe direction about of an inch and cut to a depth of about /5 of an inch.

References Cited in the file of this patent UNITED STATES PATENTS

Claims (1)

1. A SHOE COMPRISING A WOVEN TEXTILE FABRIC UPPER AND A SOLE HAVING AS A WHOLE A SPECIFIC GRAVITY LESS THAN WATER, SAID SOLE BEING COMPOSED OF FLEXIBLE, CELLULAR, NONWATER ABSORBENT PLASTIC MATERIAL HAVING A CLOSED GAS FILLED CELL STRUCTURE AND A SPECIFIC GRAVITY OF FROM 30 TO .90. AND SAID SOLE HAVING A THICKNESS OF AT LEAST ONE-HALF INCH AND A THREAD SURFACE PROVIDED WITH CLOSELY TRANSVERSELY EXTENDING SLITS.
US446735A 1954-07-30 1954-07-30 Floatable slip-resistant shoe Expired - Lifetime US2757461A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US446735A US2757461A (en) 1954-07-30 1954-07-30 Floatable slip-resistant shoe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US446735A US2757461A (en) 1954-07-30 1954-07-30 Floatable slip-resistant shoe

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US2757461A true US2757461A (en) 1956-08-07

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Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3031777A (en) * 1961-06-15 1962-05-01 Al Lehman Bowling shoes
US3530489A (en) * 1968-08-19 1970-09-22 Usm Corp Footwear manufacture
US3791050A (en) * 1972-01-19 1974-02-12 Wolverine World Wide Inc Shoe sole and heel
US4292746A (en) * 1979-04-25 1981-10-06 Delaney Glen J Light weight insulated athletic shoe
WO1983003528A1 (en) * 1982-04-12 1983-10-27 Sperry Top Sider Inc Outsole
US4910887A (en) * 1988-08-05 1990-03-27 The Timberland Company Boating shoe
WO1991011924A1 (en) * 1990-02-08 1991-08-22 Ellis Frampton E Iii Shoe sole structures with deformation sipes
US6763616B2 (en) 1990-06-18 2004-07-20 Anatomic Research, Inc. Shoe sole structures
US20080301886A1 (en) * 2007-06-08 2008-12-11 Deckers Outdoor Corporation Recycled bicycle tire foxing tape for footwear and method of making footwear
USD775459S1 (en) * 2015-05-27 2017-01-03 Jiones Frs Corporation Shoe outsole
USD785304S1 (en) 2015-08-10 2017-05-02 Jiones Frs Corporation Shoe outsole
USD789664S1 (en) 2015-08-10 2017-06-20 Jione Frs Corporation Shoe outsole
USD790820S1 (en) 2015-08-10 2017-07-04 Jione Frs Corporation Shoe outsole
USD792688S1 (en) 2015-08-10 2017-07-25 Jione Frs Corporation Shoe outsole
USD793048S1 (en) 2015-08-10 2017-08-01 Jione Frs Corporation Shoe outsole
US9854871B2 (en) 2015-01-29 2018-01-02 Nike, Inc. Sole structures that include portions with different herringbone traction pattern arrangements
USD809256S1 (en) * 2016-11-16 2018-02-06 Nike, Inc. Shoe midsole

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2124986A (en) * 1936-06-13 1938-07-26 Us Rubber Prod Inc Rubber sole and heel
US2251468A (en) * 1939-04-05 1941-08-05 Salta Corp Rubber shoe sole
US2284307A (en) * 1940-01-31 1942-05-26 Us Rubber Co Method of slitting shoe soles
US2538673A (en) * 1949-07-19 1951-01-16 Donahue Paul Ansley Footwear

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2124986A (en) * 1936-06-13 1938-07-26 Us Rubber Prod Inc Rubber sole and heel
US2251468A (en) * 1939-04-05 1941-08-05 Salta Corp Rubber shoe sole
US2284307A (en) * 1940-01-31 1942-05-26 Us Rubber Co Method of slitting shoe soles
US2538673A (en) * 1949-07-19 1951-01-16 Donahue Paul Ansley Footwear

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3031777A (en) * 1961-06-15 1962-05-01 Al Lehman Bowling shoes
US3530489A (en) * 1968-08-19 1970-09-22 Usm Corp Footwear manufacture
US3791050A (en) * 1972-01-19 1974-02-12 Wolverine World Wide Inc Shoe sole and heel
US4292746A (en) * 1979-04-25 1981-10-06 Delaney Glen J Light weight insulated athletic shoe
WO1983003528A1 (en) * 1982-04-12 1983-10-27 Sperry Top Sider Inc Outsole
US4910887A (en) * 1988-08-05 1990-03-27 The Timberland Company Boating shoe
WO1991011924A1 (en) * 1990-02-08 1991-08-22 Ellis Frampton E Iii Shoe sole structures with deformation sipes
US6115945A (en) * 1990-02-08 2000-09-12 Anatomic Research, Inc. Shoe sole structures with deformation sipes
US6763616B2 (en) 1990-06-18 2004-07-20 Anatomic Research, Inc. Shoe sole structures
US7874084B2 (en) * 2007-06-08 2011-01-25 Deckers Outdoor Corporation Recycled bicycle tire foxing tape for footwear and method of making footwear
US20080301886A1 (en) * 2007-06-08 2008-12-11 Deckers Outdoor Corporation Recycled bicycle tire foxing tape for footwear and method of making footwear
US9854871B2 (en) 2015-01-29 2018-01-02 Nike, Inc. Sole structures that include portions with different herringbone traction pattern arrangements
USD775459S1 (en) * 2015-05-27 2017-01-03 Jiones Frs Corporation Shoe outsole
USD785304S1 (en) 2015-08-10 2017-05-02 Jiones Frs Corporation Shoe outsole
USD789664S1 (en) 2015-08-10 2017-06-20 Jione Frs Corporation Shoe outsole
USD790820S1 (en) 2015-08-10 2017-07-04 Jione Frs Corporation Shoe outsole
USD792688S1 (en) 2015-08-10 2017-07-25 Jione Frs Corporation Shoe outsole
USD793048S1 (en) 2015-08-10 2017-08-01 Jione Frs Corporation Shoe outsole
USD809256S1 (en) * 2016-11-16 2018-02-06 Nike, Inc. Shoe midsole

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