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 numberUS3707021 A
Publication typeGrant
Publication dateDec 26, 1972
Filing dateJun 16, 1971
Priority dateJun 17, 1970
Also published asCA953882A1, DE2129837A1, DE2129837B2
Publication numberUS 3707021 A, US 3707021A, US-A-3707021, US3707021 A, US3707021A
InventorsRuben Henry Norrman
Original AssigneeSpanset Inter Ag
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Straps
US 3707021 A
Abstract
A strap consisting of a core of one or more skeins and a protective covering of flexible material around the core, said covering consisting of a hose or tube with an unbroken seamless wall.
Images(1)
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

United States Patent Norrman 1 Dec. 26, 1972 [54] STRAPS [56] References Clted [72] Inventor: Ruben Henry Norrnrsn, Malmo, u rr STATES PATENTS 1,524,009 l/l925 Armin........................292/3o1 n ux [73] Assignee: Spaniel Inter AG, Basel, Switzer- 2,259,9l7 10/1941 Wiuim ct sl. ..24/|6 PB [and 2,449,181 9/1948 Smiley ..40I2l C 3,265,554 8/1966 Eldred ................24/l6 R [22] Filed: June 16. 1971 3,415,204 10/1969 Donaldson ..24 I6 PB x l PP NM 153,?" FOREIGN PATENTS OR APPLICATIONS 1,277,523 9/l968 Germany ..24l265 AL [30] Foreign Application Priority Data Primary Examiner-Donald A. Griffin June 17, 1970 Sweden ..8374l70 Auomey john Lczdey [52] 0.8. CI. ..24/16 R [51] Int. Cl. "use 0/00 [571 ABSTRACT [58] Field of Search ..24/ [6 R, [7 B, 122.3, 122.6, A strap consisting of a core of one or more skeins and 24/16 PB, 265 AL a protective covering of flexible material around the core, said covering consisting of a hose or tube with an unbroken seamless wall.

1 Claim, 4 Drawing Figures suns This invention relates to a strap of the kind used as a connecting means between a lifting or other handling appliance and goods that are to be loaded or unloaded by means of said appliance. The connecting means is in the form of a loop consisting of a core formed by one or more skeins, and a protective covering around said core.

The protective covering around previously known straps is realized by arranging a strip of flexible material and of suitable width around the core and interconnecting the longitudinal strip edges by a seam. Sewing together the strip in the longitudinal direction is a timeconsuming work, and however strong the material used, the resulting seam is the weakest link of the strap and breaks by far too early under the influence of the high stresses and the severe service conditions to which the strap is exposed in use.

To eliminate the drawbacks outlined above, the strap according to the invention has a protective covering formed by a hose or tube with an unbroken seamless wall.

The invention will be described more in detail hereinbelow with reference to the accompanying drawing in which:

FIG. 1 is a perspective view of a core formed by a skein;

FIG. 2 is a corresponding perspective view of a protective covering for the core shown in FIG. 1;

FIG. 3 is a corresponding perspective view of a finished strap;

FIG. 4 is a section on line lV-lV in FIG. 3.

The finished strap 1 illustrated in FIG. 3 is of the kind used as a connecting means between a lifting or other IOII handling appliance (not shown) and goods that are to be loaded or unloaded (or pulled) by means of the appliance. The strap 1 is in the form of an endless loop of flexible material. The loop consists of a core 2 formed by one or more skeins 3. For greater simplicity, only one of these skeins 3 is shown in FIG. 1. The two ends 4 of the skeins 3 are preferably interconnected, for instance tied together. Moreover, the strap consists of a protective covering around the core 2. said covering being formed in accordance with the invention by a hose or tube 5 with an unbroken seamless wall 6 (FIG. 4). Such a hose or tube 5 can be provided in various ways around the core 2, but the methods most suitable in point of economy and practicability are not part of the present invention. The hose or tube 5 covers the entire core 2, and one end 7 of the hose or tube 5 is inserted in the other end 8. The ends 7 and 8 may also be joined together in abutting relationship. The hose or tube 5 preferably is of such a length in relation to the core 2 as to form transverse folds, thus being longer than the circumference of the loop, whereby the hose or tube can adjust itself to the changes in length to which the strap is subjected in use.

Modifications are possible within the scope of the inventive idea defined in the appended claims.

lclaim:

l. A strap for use as a connecting means between a lifting and other handling appliance and goods that are to be loaded or unloaded by means of said appliance, said strap comprising a loop consisting of a core formed by at least one skein, and a protective coverin around said core, said protective covering being a flexi le tube with an unbroken seamless wall whereby there is formed an endless loop with said skein running continuously turn by turn through the entire loop.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1524009 *Sep 29, 1922Jan 27, 1925Austin John TReenforced cable
US2259917 *Oct 24, 1940Oct 21, 1941Goodrich Co B FSkein holder
US2449181 *Apr 26, 1944Sep 14, 1948Smiley John RNonremovable transparent identification band with a tag therein
US3265554 *Jun 11, 1962Aug 9, 1966Bendix CorpLaminated tensile load carrying member having laminated end fittings
US3475264 *Jul 21, 1964Oct 28, 1969Chase DonaldsonReinforced plastic strapping laminate
DE1277523B *Dec 20, 1966Sep 12, 1968Leipzig Inst FoerdertechEinrichtung zur UEberwachung von in einem Gummiueberzug einvulkanisierten Anschlagbaendern
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4779411 *Dec 29, 1986Oct 25, 1988Link Enterprises CorporationFlexible, non-metallic rigging chain
US4843807 *Feb 5, 1988Jul 4, 1989Spanset Inter AgMethod of producing an endless sling
US5415449 *Sep 30, 1993May 16, 1995Bc Industrial Supply, Inc.For lifting loads
US5649414 *Jun 21, 1996Jul 22, 1997Mcdonnell Douglas Corp.Sling with braided sleeve covering
US5791020 *Jul 3, 1996Aug 11, 1998Firma Sanpack Lagertechnik GmbhApparatus for and method of securing articles and/or packaging containers on transport pallets
US6837037 *Mar 17, 2003Jan 4, 2005Jonathan WillingerInterconnected rubber ring chain
US7240475Jan 28, 2004Jul 10, 2007Dsm Ip Assets B.V.Roundsling
US7422255Jan 17, 2003Sep 9, 2008Suxhess, Hess Board & Process ConsultingSling
US8468793 *Mar 13, 2009Jun 25, 2013Dsm Ip Assets B.V.Chain comprising links
US8727406 *Feb 18, 2010May 20, 2014Spanset Inter AgRound sling for lifting loads
US8793843Aug 12, 2011Aug 5, 2014Matthew KhachaturianLifting sling grommet connector and method
US20110011051 *Mar 13, 2009Jan 20, 2011Dietrich WienkeChain comprising links
US20110298231 *Feb 18, 2010Dec 8, 2011Spanset Inter AgRound Sling for Lifting Loads
WO1997048841A1 *Jun 17, 1997Dec 24, 1997Mc Donnell Douglas CorpSling with braided sleeve covering
WO2003059462A1 *Jan 17, 2003Jul 24, 2003Hess RuediSling
Classifications
U.S. Classification24/16.00R, 294/74
International ClassificationF16G9/00, B66C1/12, D07B1/00, D07B1/18
Cooperative ClassificationF16G9/00, B66C1/12
European ClassificationF16G9/00, B66C1/12