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Publication numberUS1444157 A
Publication typeGrant
Publication dateFeb 6, 1923
Filing dateSep 7, 1920
Priority dateSep 7, 1920
Publication numberUS 1444157 A, US 1444157A, US-A-1444157, US1444157 A, US1444157A
InventorsLee Frederick L
Original AssigneeLee Frederick L
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Pneumatic load carrier
US 1444157 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

Feb. 6, 1923. 11,444,157


Patented Feb, 6, 1923 Ui lllTli-i .1")-



Application filed September '7, 1920. Serial. No.

To all whom it may concern Be it known that FREDERICK L. LEE, a citizen of the United States of America, residing at Spokane, in the county of Spokane and State of Washington, has invented new and useful Improvements in Pneumatic Load Carriers, of which the following is a specification.

This invention pertains to pneumatic load carriers and has for its object to provide an air cushion for loads to be carried by man, such as a knap-sack carried by a soldier and generally for any load to be carried and be supported by the shoulders.

Generally speaking a pneumatic tube enclosed by a suitable covering and then cured to the under side of the strap that ordinarily sustains the load whereby the pneumatic tube comes in contact with the person of the carrier instead of the strap and orcupies a space between the person and the strap.

F or the purpose of illustrating the invention I have made an application ot the same to a knap-sack and the details of the construction will be hereinafter given and illustrated in the accompanying drawings in which Figure 1 is an assembled view of the invention shown attached to the straps of the knapsack.

Figure 2 is a view of the invention detached with a portion of the coverii'ig broken Figure is a broken-away sectional view of the pneumatic tube: 1

In afdetail description in which like numerals refer to like parts throughout the several views an elongated rubber tube 10 is provided with a small. tubular connection 11. About midway between the ends l2 of the tube 10 and the small tube 11 the walls of the tube 11 are vulcanized together as at '13 forming air chambers let which contain merely the amount of air that would ordinarlly be forced therein by bringing the walls of the tube together when the tube 11 is inflated suflicient to hold the tube in an expanded position, whereby the chambers 14 would be formed about as shown in Figure 3.

The construction shown in Figure 8 is then enclosed in a suitable covering, preferably water proof, such as an oiled cloth 15 in which is mounted an eyelet 16. Latch straps 1'? are then placed transverselv on the covering 15 through which the straps 18 of the knap-sack 19 are inserted so that the assembled mechanism 20 occupies a position beneath the straps 1h. 'llhe small tubes 11 will then occupy a position on the mans body, where the knapsack is taken on, on his front near the. collar bone. The carrier will then inflate the tube 10 through the small tube 11 from the lungs, to the desired pressure and then told and tie the tube ll as indicated at 1'1. Figure l.

The shape of the tube .10 may be varied to suit the character of the load carried.

What is claimed is A pneumatic load carrier comprising a rubber tube with means for filling and re taining the air near the center thereof, said tube having its walls vulcanized together about midway between the curls of the tube and the center thereoi. a =overing for said tube and means for connectin h bled mechanism beneath the of the load to be carried In testimony whereof. I my in the presence of a witness.

lJRIEDERICK L, ljl lll.

s1 gna t 1 Witness L. L. WESTFALL.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3883053 *Feb 20, 1973May 13, 1975Frank A PritchardInflatable pad
US3896694 *Jul 29, 1974Jul 29, 1975Richard GoldnerShoulder support for violin and viola
US5361957 *Aug 26, 1993Nov 8, 1994Weintraub Marvin HShoulder strap cushion
US5566871 *Nov 7, 1994Oct 22, 1996Weintraub; Marvin H.Shoulder strap cushion
US6223959 *Dec 10, 1999May 1, 2001Charles ChenBag having an air-cushioned shoulder strap
US6471105May 1, 2000Oct 29, 2002Airpacks, Inc.Shoulder carrier with inflatable lumbar support
US6793112Nov 8, 2002Sep 21, 2004Airpacks, Inc.Shoulder carrier with laterally moveable shoulder strap
US6863202Sep 30, 2002Mar 8, 2005Airpacks, Inc.Shoulder carrier with inflatable lumbar support
US6915932Jan 13, 2003Jul 12, 2005Nike, Inc.Strap incorporating a fluid-filled bladder
US7367483May 27, 2004May 6, 2008Nike, Inc.Strap assembly with cushioning elements
US7448522Nov 11, 2003Nov 11, 2008Nike, Inc.Fluid-filled bladder for use with strap
US7717310 *Mar 16, 2006May 18, 2010E. Mishan & Sons, Inc.Air-cushion backpack
US8186549Jun 4, 2004May 29, 2012Nike, Inc.Double strap carrying system and base stand for golf bags and other shoulder-borne articles
US8215526 *Apr 1, 2010Jul 10, 2012E. Mishan & Sons, Inc.Air-cushion backpack
US8322585May 28, 2009Dec 4, 2012Nike, Inc.Golf bag or other shoulder-borne device having double strap to single strap convertibility
US8657168 *Nov 21, 2012Feb 25, 2014Nike, Inc.Golf bag or other shoulder-borne device having double strap to single strap convertibility
US8833622Apr 23, 2012Sep 16, 2014Nike, Inc.Double strap carrying system and base stand for golf bags and other shoulder-borne articles
US20130075289 *Nov 21, 2012Mar 28, 2013Nike, Inc.Golf Bag or Other Shoulder-Borne Device Having Double Strap to Single Strap Convertibility
US20130075438 *Nov 20, 2012Mar 28, 2013Philip Troy ChristyBack pack with back cushioning means
US20130134192 *Sep 16, 2011May 30, 2013Woohyung AhnBackpack having a tube-type shoulder belt
WO1994009672A1 *Oct 20, 1993May 11, 1994Millet Soc NouvRucksack
WO1994028756A2 *Jun 8, 1994Dec 22, 1994Sook Ja ByeonProtection band
WO1999058018A1 *May 14, 1999Nov 18, 1999Airpacks IncBackpack
U.S. Classification224/264
International ClassificationA45F3/04
Cooperative ClassificationA45F3/04
European ClassificationA45F3/04