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1. WO1996041973 - TUG-RESISTANT LINK

Publication Number WO/1996/041973
Publication Date 27.12.1996
International Application No. PCT/US1996/009050
International Filing Date 06.06.1996
Chapter 2 Demand Filed 03.01.1997
IPC
A41F 1/00 2006.01
AHUMAN NECESSITIES
41WEARING APPAREL
FGARMENT FASTENINGS; SUSPENDERS
1Fastening devices specially adapted for garments
A42B 3/08 2006.01
AHUMAN NECESSITIES
42HEADWEAR
BHATS; HEAD COVERINGS
3Helmets; Helmet covers
04Parts, details or accessories of helmets
08Chin straps or similar retention devices
A42B 3/14 2006.01
AHUMAN NECESSITIES
42HEADWEAR
BHATS; HEAD COVERINGS
3Helmets; Helmet covers
04Parts, details or accessories of helmets
10Linings
14Suspension devices
A61F 5/01 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
5Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices
01Orthopaedic devices, e.g. long-term immobilising or pressure directing devices for treating broken or deformed bones such as splints, casts or braces
F16F 7/12 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
7Vibration-dampers; Shock-absorbers
12using plastic deformation of members
F16F 9/30 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
9Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
30with solid or semi-solid material, e.g. pasty masses, as damping medium
CPC
A41F 1/00
AHUMAN NECESSITIES
41WEARING APPAREL
FGARMENT FASTENINGS; SUSPENDERS
1Fastening devices specially adapted for garments
A42B 3/08
AHUMAN NECESSITIES
42HEADWEAR
BHATS; HEAD COVERINGS
3Helmets; Helmet covers ; ; Other protective head coverings
04Parts, details or accessories of helmets
08Chin straps or similar retention devices
A42B 3/14
AHUMAN NECESSITIES
42HEADWEAR
BHATS; HEAD COVERINGS
3Helmets; Helmet covers ; ; Other protective head coverings
04Parts, details or accessories of helmets
10Linings
14Suspension devices
A61F 5/01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
5Orthopaedic methods or devices for non-surgical treatment of bones or joints
01Orthopaedic devices, e.g. splints, casts or braces
F16F 1/3605
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
1Springs
36made of rubber or other material having high internal friction, ; e.g. thermoplastic elastomers
3605characterised by their material
F16F 2236/06
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
2236Mode of stressing of basic spring or damper elements or devices incorporating such elements
06Tension
Applicants
  • BETH ISRAEL HOSPITAL [US]/[US]
  • PRESIDENT AND FELLOWS OF HARVARD COLLEGE [US]/[US]
Inventors
  • MCMAHON, Thomas, A.
  • ROBINOVITCH, Steven
  • HAYES, Wilson, C.
Agents
  • SUNSTEIN, Bruce, D.
Priority Data
60/000,01508.06.1995US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) TUG-RESISTANT LINK
(FR) ATTACHE RESISTANT A LA TRACTION
Abstract
(EN)
A tug-resistant unit in which the first (12) and second (16) relatively inextensible members overlap one another. A shear-thickening composition (26) having dilatant flow characteristics is disposed between the first and the second inextensible members. The composition provides a variable resistance to linear movement of the second inextensible member relative to the first inextensible member as a function of the shear forces exerted upon the dilatant fluid. The inextensible members may be enclosed within an extensible enclosure to form an elastic strap. Alternatively, one inextensible member may form a portion of the enclosure while the second inextensible member is disposed within the strap so as to overlap the first inextensible portion of the enclosure. The strap provides low resistance to slowly-varying tensile forces and high resistance to rapidly-changing tensile forces, thereby moderating the velocity of relative motion between the ends.
(FR)
L'invention se rapporte à une unité résistant à la traction, dans laquelle les premier (12) et deuxième (16) éléments relativement inextensibles se chevauchent. Une composition rhéoépaississante (26) ayant les caractéristiques d'un fluide rhéoépaississant est placée entre les premier et deuxième éléments inextensibles. La composition confère au deuxième élément inextensible une résistance variable au movement linéaire par rapport au premier élément inextensible, en fonction des forces de cisaillement exercées sur le fluide rhéoépaississant. Les éléments inextensibles peuvent être enfermés dans une enveloppe extensible en vue de former une sangle élastique. A titre de variante, un élément inextensible peut constituer une partie de l'enveloppe tandis que le deuxième élément inextensible est disposé dans la sangle de manière à chevaucher la première partie inextensible de l'enveloppe. La sangle présente une résistance peu élevée aux forces de traction dont les variations sont lentes et une résistance élevée aux forces de traction dont les variations sont rapides, ce qui modère la rapidité du mouvement relatif entre les extrémités.
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