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Publication numberUS1021142 A
Publication typeGrant
Publication dateMar 26, 1912
Filing dateApr 25, 1911
Priority dateApr 25, 1911
Publication numberUS 1021142 A, US 1021142A, US-A-1021142, US1021142 A, US1021142A
InventorsMalcolm W Freeman
Original AssigneeMalcolm W Freeman
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Pneumatic walking attachment.
US 1021142 A
Abstract  available in
Images(1)
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Claims  available in
Description  (OCR text may contain errors)

M. W. FREEMAN.

PNEUMATIO WALKING ATTACHMENT.

APPLICATION FILED APB.25, 1911.

1,021,142, Patented Mar.26,1912.

y @nue/wko@ COLUMBIA Putman/Pn Cn., wAslilNu'roN. D. C.

UNITED STATES PATENT OFFICE.

MALCOLM W. FREEMAN, OF MILLINGTON, MASSACHUSETTS.

PNEUMATIC WALKING ATTACHMENT.

T0 all whom t may concern:

Be it known that I, MALCOLM lV. Funn- MAN, a citizen of the United States, residing at Millington, in the county of Franklin, State of Massachusetts, have invented certain new and useful Improvements in Pneumatic Walking Attachments; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will -enable others skilled in the art to Which it appertains to make and use the same.

This invention relates to pneumatic walk ing attachments for shoes,'and has for its object to provide a device of this character which may be quickly and readily attached to the shoes of a pedestrian and which when attached will greatly facilitate walking.

A further object of the invention is to provide a device of this character which will be of great aid to athletes in vaulting, jumping or running and similar exercises.

In the drawing: Figure 1 is a side View showing the device attached to a shoe. Fig. 2 is a bottom View. Fig. 3 is a longitudinal sectional view. Fig. 1l; is a trans verse sectional view on line 4 4: of Fig. 1. Referring to the drawing, the numeral l designates a plate corresponding in contour to the usual sole and heel of a boot or shoe and is formed from metal preferably aluminum. The heel section of the plate l is provided with diametrically opposite slots 2, in which are fastened the ends of straps 3, said straps being adapted to be buckled around the instep of the wearer. Similar slots 4L are provided in the sole section of the plate 1 and to which straps 5 are attached to pass around the vamp of the wearers shoes to firmly secure the device in position. To the under side of the heel and sole sections of the plate l are secured Specification of Letterslatent.

Application filed April 25, 1911.

Patented Mar. 26, 1912.

serial No. 623,194.

rubber cups 6, each of which is provided with an annular flange 7, whereby the same are cemented to the plate l. Inclosed in each cup is a convolute spring 8 which has its greater convolutions contacting with the lower side of the plate l and its smaller convolutions embedded and cemented in the inner face of the tread 9. The treads 9 are of greater thickness than the sides of theV cups, to withstand wear.

By employing convolute springs 8 the cups 6 are prevented from lateral collapsing, this type of spring being especially adapted to prevent such action. It will be further noted that when the cups 6 are applied and securely cemented air chambers 10 are produced, and acting in conjunction with the springs 9 will form both a spring and pneumatic cushion, which when worn will greatly facilitate walking.

ThatI is claimed, isz- A pneumatic walking attachment comprising a plate having a sole section" and a heel section, a rubber cup secured to each of the said sections, an annular flange formed upon each cup, each cup being provided with a thickened tread, said cups when secured forming air chambers, a convolute spring mounted in each air chamber, said springs having their greater convolutions resting upon the bottoms of the heel and sole sections and their lesser convolutions embedded in the inner faces of the treads, and means for securing the said plate to a boot or shoe.

In testimony whereof, I affix my signature, in presence of two witnesses.

MALCOLM WV. FREEMAN.

fitnessesz Bassin F. BALLARD, DANIEL BALLARD.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3945136 *Feb 10, 1975Mar 23, 1976Koo Bonny BSpring lift for shoes
US3951422 *Mar 12, 1975Apr 20, 1976Guyton Ellis HornsbyShock absorber for skates
US6393735 *Dec 23, 1997May 28, 2002Svante BerggrenRunning wheel shoe
US7740567Jun 22, 2010Benjamin BailarShoe accessory
US8038583 *Oct 18, 2011Bailar Benjamin FShoe accessory
US9271895Jul 21, 2011Mar 1, 2016APOS—Medical and Sports Technologies Ltd.Method for treating urinary incontinence
US9357812May 21, 2014Jun 7, 2016APOS—Medical and Sports Technologies Ltd.Proprioceptive/kinesthetic apparatus and method
US9370705Mar 21, 2013Jun 21, 2016Andrew J. GrzesiakProprioceptive shoe attachment and method of use
US20050137511 *Dec 22, 2004Jun 23, 2005Bailar Benjamin F.Shoe accessory
US20100313449 *Jun 11, 2009Dec 16, 2010Patrick BrownOuter sole support
US20140309692 *Dec 10, 2012Oct 16, 2014Apos - Medical And Sports Technologies Ltd.Methods for treating spine pathologies
EP0964625A1 *Dec 23, 1997Dec 22, 1999Svante BerggrenDevice for a shoe
EP2277607A2 *Aug 12, 2003Jan 26, 2011Avi ElbazProprioceptive/kinesthetic apparatus and method
Classifications
U.S. Classification36/7.8, 482/77, 36/7.6
Cooperative ClassificationA43B5/18, A63B25/10