Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUS3160963 A
Publication typeGrant
Publication dateDec 15, 1964
Filing dateJun 7, 1963
Priority dateJun 7, 1963
Publication numberUS 3160963 A, US 3160963A, US-A-3160963, US3160963 A, US3160963A
InventorsHelmer Aaskov
Original AssigneeHelmer Aaskov
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Air-filled sandal
US 3160963 A
Abstract  available in
Images(1)
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

Dec. 15, 1964 H. AAsKov AIR-FILLED sANDAL Filed June 7, 1963 m. TV, w n M United States Patent 3,160,963 A1B-FILLED SANDAL Helmer Aasirov, 8053 S. @range Ave., Fresno 25, Calif. Filed .inne 7, 1963, Ser. No. 286,379 Claims. (Q1. .i6-11.5)

This invention relates to articles of footwear, and more particularly to a scandal of the air-cushioned type.

A main object of the invention is to provide a novel and improved article of footwear having an intiated footsupporting portion, the article being simple in construction, being attractive in appearance, and Ibeing comfortable to wear. Y

A further object of the invention is to provide an improved fair-cushioned sandal which is inexpensive to manufacture, which is durable in construction, which is adapted to be attached to the wearers foot without requiring the use of fastening straps, and which provides a'yielding but comfortabie support for the users foot.

`Further objects and advantages of the invention will become apparent from the following description and claims, and from the accompanying drawings, wherein:

FIGURE 1 is a perspective View of an improved aircushioned sandal constructed in accordance with the present invention. p

FGURE 2 is a longitudinal vertical cross sectional View taken through the sandal substantially on the line 2 2 of FIGURE 1.

FIGURE 3 is a transverse vertical cross sectional view taken substantially on the line 3 3 of FIGURE 1.

FIGURE 4 is a transverse vertical cross sectional view showing the components of the sandal in separated positions. i

FIGURE 5 is a fragmentary perspective view of the' sandal wherein the inflatable cushion element and the fastening strip of the sandal are formed integrally.

Referring to the drawings, and more particularly to FIGURES 1 to 5, 11 generally designates an improved cushioned sandal constructed in accordance with the present invention. The sandal 11 comprises a relatively rigid main body 12 which has a contour to conform with the general shape of a persons foot, said main body 12 being of molded plastic or other suitable durable material. The bottom surface of the body 12 may be ribbed, corrugated, or otherwise formed with a suitable gripping pattern.

The relatively rigid main body 12 is provided with the upstanding continuous marginal wall or rib 13 delining a recess 14, and said body 13 is further formed in said recess with a plurality of upstanding integral pin elements 15 located adjacent the marginal wall or rib 13 and radially spa-ced along said marginal rib inthe manner shown in FGURF. 1.

Designated at. 1d is .a rubber Ifastening strip which is shaped to closely t inside the cavity 14 against the inside surface of the continuous marginal rib 13, the strip 16 being formed with apertures 17 spaced to receive the pins 15. The inside surface of the fastening strip 16 isconcave, as shown at 18, fora purpose presently to be described.

Designated at 19 is an inatable cushion member which comprises a hollow body of iniiatable material, such as rubber, plastic material, or the like, shaped to t closely inside the fastening stripl 16 and having the convex outer edge 20 engageable in the concave channel 18 on the inside surface of the fastening strip 16. The hollow body 19 is provided with an ination valve 21 at the inter- 3,16%,963 Patented Dec. 1 5, 1964 mediate portion of one side edge thereof, for admitting air into the hollow body 19 by means of a suitable air pump or other inflating device provided with a hollow needle which may be inserted into the aperture of the valve 21. The valve 21 is of conventional construction and may be of the type having an inner ap which is held over the mouth of the valve to prevent air from escaping therethrough after the body 19 has been inserted to the desired pressure. A suicient quantity of air is introduced into the body 19 to provide a comfortable and yieldable cushioning action.

The top Wall 22 of the inatable body 19 is integrally formed with a plurality of spaced suction cups 23 which face upwardly and which are adapted to be grippingly engaged with the underside of the wearers foot, the suction cups 23 being distributed over the area of the top wall 22 in the manner illustrated in FGURES l, 2 and 5, so as to grip the underside of the users foot at adjacent points distributed over the foot area. Thus, a relatively large number of suction cups 23 are provided respectively at the sole and heel portions of the cushion member 19, whereas relatively few suction cups 23 are provided in the region between the sole and heel portions, for example, a single line of suction cups 23 may be provided in the area underlying the arch portion of the foot. The top wall 22 is furthermore provided with transversly extending ribs 24 which serve to somewhat reinforce the top wall 22 mechanically, as well as providing a ymassaging action on the lunderside of the wearers foot.-

In assembling the sandal 11, the fastening strip 16 is first placed in the cavity 14, the apertures 17 being forced over the pins 15, so that the strip is secured closely adjacent to and in continuous contact with the inside surface of the upstanding marginal wall 13 of main body 12. The cushion member 19, inflated to a suitable pressure is then forced into the space inside the strip 16, the convex edge 20 of the cushioning member lockingly engaging in the concave channel 1S at the inside surface of the strip 16,

locks it with respect to the upstanding relatively rigid pins 15.

As will be readily apparent, the sandal may be fastened to the foot by merely stepping downwardly onto the exposed top wall Z2 of the cushion member 19, the suction cups 23 being forced against the bottom surfaces of the foot and gripping same. Thus no fastening straps or other fastening means are required.

As shown in FGURE 6, the inflatable cushioning body 19 may be integrally combined with the fastening strip 16 by yforming the elements in the same mass. Thus, in FIGURE 6 the body of the inflatable member 19' is integrally provided with the marginal portion ld'having the apertures 17' adapted to receive the upstanding pins 1S of the main relatively rigid body 12 of the sandal. The top wall 22 of the inflatable member 19' is formed in the same manner as in the previously described form of the invention, namely, is provided vwith the integral upwardly facing suction cups 23 and the transversely extending upstanding ribs 2d. The sandal formed by using the cushion member shown in FIGURE 6 is assembled in substantially the same manner as previously described, except that only a single step is required after the body 19 has been inserted, namely, the forcing the body into the cavity 14 of the rigid main supporting body 12 of the sandal with the pins 15 received in the apertures 17.

While certain specific embodiments of an improved air-cushioned sandal have been disclosed in the foregoing description, it will be understood that various modifications within the spirit of the invention may occur to those skilled in the art. Therefore, it is intended that no limitation be placed on the invention except as defined by the scope of the appended claims.

What is claimed is:

1. A sandal comprising a relatively rigid main body formed with a recess generally in the shape of a foot, a plurality of upstanding pins integrally formed n said main body adjacent the Walls of the recess, an inflatable cushion member shaped to be received in said recess, means to secure the edge portions of the cushion member to said pins, and a plurality of upwardly facing suction cups on `the top surface of the cushion member.

2. A sandal comprising a relatively rigid main body formed with a recess generally in the shape of a foot, a plurality of upstanding pins integrally formed in said main body adjacent the walls of the recess, an inatable cushion member shaped to be received in said recess, means to secure the peripheral edge portion of the cushion member to said pins, a plurality of upwardly facing suction cups integrally formed on the top surface of the cushion member, and a plurality of upstanding parallelV spaced ribs integrally formed on the top surface of the cushion member.

3. A sandal comprising a relatively rigid main body formed with a recess generally in the shape of a foot, a plurality of upstanding pins integrally formed in said main body adjacent the walls of the recess, an inflatable cushion member shaped to be received in said recess, a resilient deformable continuous fastening strip engaged in the recess adjacent the inner side wall surface thereof, said strip having apertures receiving said pins, the peripheral edge portion of the cushion member being lockingly received inside the fastening strip, whereby to secure the cushion member to said pins, and a plurality of upwardly facing suction cups on the top surface of the cushion member.

4. A sandal comprising a relatively rigid main body formed with a recess generally in the shape of a foot, a plurality of upstanding pins integrally formed in said main body adjacent the walls of the recess, an inflatable cushion member shaped to be received in said recess, a resilient deformable continuous fastening strip engaged in the recess adjacent the inside wall surface thereof, said strip having apertures receiving said pins, the fastening strip having a concave inside surface lockingly receiving the peripheral edge portion of the cushion member, whereby to secure the cushion member to said pins, and a plurality of upwardly facing suction cups integrally formed in the top surface of the cushion member. y

5. A sandal comprising a relatively rigid main body formed with a recess generally in the shape of a foot, a plurality of upstanding pins integrally formed in said main body adjacent the walls of the recess, an inatable cushion member shaped to Ibe received in said recess, a resilient deformable continuous fastening strip engaged in the recess adjacent the inside wall surface thereof, said strip having apertures receiving said pins, the fastening strip having a concave inside surface lockingly receiving the peripheral edge portions of the cushion member, whereby to secure the cushion member to said pins, a plurality of upwardly facing suction cups integrally formed in the top surface of the cushion member, and a plurality of upstanding parallel ribs integrally formed on the top surface of the cushion member.

References Cited in the file of this patent UNITED STATES PATENTS 2,109,180 Mohun Feb. 22, 1938 2,985,970 McCarthy May 30, 1961 3,059,350 Price Oct. 23, 1962 FOREIGN PATENTS 1,035,397 France Apr. l5, 1953

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2109180 *Mar 30, 1936Feb 22, 1938Meade MohunShoe construction
US2985970 *Nov 25, 1957May 30, 1961Mccarthy Edward FShoes and means of attaching them
US3059350 *Aug 11, 1960Oct 23, 1962Price Dan MStrapless sandal
FR1035397A * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4100686 *Sep 6, 1977Jul 18, 1978Sgarlato Thomas EShoe sole construction
US4753022 *Apr 27, 1987Jun 28, 1988Gasbarro Mark ASandal sole
US4779359 *Jul 30, 1987Oct 25, 1988Famolare, Inc.Shoe construction with air cushioning
US4817304 *Aug 31, 1987Apr 4, 1989Nike, Inc. And Nike International Ltd.Footwear with adjustable viscoelastic unit
US4829682 *Apr 19, 1988May 16, 1989Gasbarro Mark ASandal sole
US5060400 *Oct 31, 1990Oct 29, 1991Amasia International, Ltd.Open toe/open heel shoe having replaceable inner sole
US5117566 *May 2, 1991Jun 2, 1992Lloyd Amie JShoe construction with a sole formed of pneumatic tubes
US5452527 *Feb 11, 1993Sep 26, 1995Medical Specialties, Inc.Shoe for a foot cast
US5976451 *Jun 24, 1996Nov 2, 1999Retama Technology CorporationConstruction method for cushioning component
US6029962 *Oct 24, 1997Feb 29, 2000Retama Technology CorporationShock absorbing component and construction method
US7086179Jan 28, 2004Aug 8, 2006Nike, Inc.Article of footwear having a fluid-filled bladder with a reinforcing structure
US7086180Jan 28, 2004Aug 8, 2006Nike, Inc.Article of footwear having a fluid-filled bladder with a reinforcing structure
US7100310Jan 28, 2004Sep 5, 2006Nike, Inc.Article of footwear having a fluid-filled bladder with a reinforcing structure
US7533477Oct 3, 2005May 19, 2009Nike, Inc.Article of footwear with a sole structure having fluid-filled support elements
US7556846Jan 28, 2004Jul 7, 2009Nike, Inc.Fluid-filled bladder with a reinforcing structure
US7559158 *May 2, 2006Jul 14, 2009Techsolutions Inc.Enhanced construction of inflatable inserts for articles of footwear
US7562469Oct 14, 2005Jul 21, 2009Nike, Inc.Footwear with fluid-filled bladder and a reinforcing structure
US7774955Apr 17, 2009Aug 17, 2010Nike, Inc.Article of footwear with a sole structure having fluid-filled support elements
US7810256Apr 17, 2009Oct 12, 2010Nike, Inc.Article of footwear with a sole structure having fluid-filled support elements
US8109012 *Oct 9, 2008Feb 7, 2012Nike, Inc.Article of footwear with drainage features
US8302234Apr 17, 2009Nov 6, 2012Nike, Inc.Article of footwear with a sole structure having fluid-filled support elements
US8302328Jun 29, 2010Nov 6, 2012Nike, Inc.Article of footwear with a sole structure having fluid-filled support elements
US8312643Sep 28, 2010Nov 20, 2012Nike, Inc.Article of footwear with a sole structure having fluid-filled support elements
US8656608Sep 13, 2012Feb 25, 2014Nike, Inc.Article of footwear with a sole structure having fluid-filled support elements
US8657979Apr 13, 2007Feb 25, 2014Nike, Inc.Method of manufacturing a fluid-filled bladder with a reinforcing structure
US8726424Jun 3, 2010May 20, 2014Intellectual Property Holdings, LlcEnergy management structure
US9210965Jan 10, 2011Dec 15, 2015Nike, Inc.Article of footwear with ribbed footbed
US9320311Mar 14, 2013Apr 26, 2016Intellectual Property Holdings, LlcHelmet impact liner system
US9516910Jun 28, 2012Dec 13, 2016Intellectual Property Holdings, LlcHelmet impact liner system
US20060185195 *May 8, 2006Aug 24, 2006Weisner Andrea PRoll-up, compressible shoe
US20070101613 *May 2, 2006May 10, 2007Rosendahl Brent LEnhanced construction of inflatable inserts for articles of footwear
US20090152774 *Dec 17, 2007Jun 18, 2009Nike, Inc.Method For Molding A Fluid-Filled Structure
US20100088928 *Oct 9, 2008Apr 15, 2010Nike, Inc.Article of Footwear with Drainage Features
USD679058Jul 1, 2011Mar 26, 2013Intellectual Property Holdings, LlcHelmet liner
USD683079Oct 10, 2011May 21, 2013Intellectual Property Holdings, LlcHelmet liner
USD733972Sep 12, 2013Jul 7, 2015Intellectual Property Holdings, LlcHelmet
WO2005063071A3 *Dec 21, 2004Feb 16, 2006Nike IncFluid-filled bladder with a reinforcing structure
Classifications
U.S. Classification36/11.5, 36/29
International ClassificationA43B13/18, A43B13/20
Cooperative ClassificationA43B13/20
European ClassificationA43B13/20