By Plural-part Rigging Patents (Class 2/420)
  • Patent number: 4627114
    Abstract: A shock attenuation structure having a breadth greater than its thickness and a breadthwise cross section comprising a series of layers arranged side-by-side. The series of layers comprises a first plurality of layers of shock-absorbing material having a relatively high resistance to compression and a second plurality of layers of shock-absorbing material having a lower resistance to compression, the layers of the second plurality alternating with the layers of the first plurality across the breadth of the structure and providing lateral support to the layers of the first plurality. The structure is adapted to be mounted with its breadth generally perpendicular to the direction of impact force for broadside loading of the structure during an impact, the layers in the area of impact being adapted to deform for attenuating the shock resulting from the impact.
    Type: Grant
    Filed: August 23, 1984
    Date of Patent: December 9, 1986
    Assignee: Figgie International, Inc.
    Inventor: Hal D. Mitchell
  • Patent number: 4539715
    Abstract: A helmet having a front shell and a rear shell movable with respect to each other. Portions of the two shells overlap each other and present mating surfaces which can engage to retain the shells in a given overlapping position and can disengage to allow the shells to change their relative position. A device is provided for selectively (a) holding the mating surfaces in engagement, or (b) releasing them to disengage.
    Type: Grant
    Filed: April 22, 1983
    Date of Patent: September 10, 1985
    Assignee: Cooper Canada Limited
    Inventor: Leonard W. H. Clement
  • Patent number: 4534068
    Abstract: A shock attenuation system comprising a plurality of shock attenuating columns of a substantially resilient elastomeric material. The columns are so dimensioned and configured that, when subjected to an axial impact force of predetermined magnitude, they resiliently deform for attenuating the shock resulting from the impact force. The columns then spring back substantially to their undeformed shape.
    Type: Grant
    Filed: January 9, 1984
    Date of Patent: August 13, 1985
    Assignee: Figgie International Inc.
    Inventors: Hal D. Mitchell, Richard W. Glover, Donald R. Walker, Isadore Rosenberg
  • Patent number: 4443891
    Abstract: This invention relates to a helmet for cyclists, skateboard runners and roller skaters. It comprises a shell of flexible and hard plate-shaped material and a damping means attached inside the shell. The shell in its plane has the form of an I, with extended cross-pieces (3) and with tips (3) attached radially between the same, which tips extend from the connecting between the cross-pieces and the stem of the I. About at the center of said stem lateral tips are attached to both sides. The cross-pieces and tips are provided with attachment means in such a manner, that the free ends of one cross-piece after the bending of the stem can be connected to the free ends of the other cross-piece. The free ends of the tips can be attached to suitable holders on the lateral tips.The cross-pieces, tips and lateral tips can be designed as bands, and the attachment means be arranged so that the width and size of the shell can be adjusted.
    Type: Grant
    Filed: January 15, 1982
    Date of Patent: April 24, 1984
    Inventors: Rolf Blomgren, Ove Johnson
  • Patent number: 4433494
    Abstract: The invention relates to a padding allowing an article of clothing or an accessory to be adapted closely to a part of the human body.This padding is constituted by a thermo-formable plastic foam 2 placed in a non-extensible covering 1 and making an open cavity intended to receive the part of the body, but of which the dimensions are generally smaller than this part of the body. The housing is thus formed by the reciprocal compression of the foam and of the part of the body placed in the cavity while the temperature of the foam is brought to the thermo-forming temperature.This invention can be used for adapting boots, helmets, gloves, swimming flippers, etc.
    Type: Grant
    Filed: December 2, 1979
    Date of Patent: February 28, 1984
    Assignee: Lange International S.A.
    Inventors: Guy Courvoisier, Simon Arieh
  • Patent number: 4404690
    Abstract: A hockey helmet is provided, which comprises a plurality of pieces joined together in such a manner that the helmet is adjustable over a wide range of sizes. A pair of side pieces is provided, to which are attached a front and back piece, and over which a top piece is secured. The helmet is adjustable in length, width and height, to accommodate various sized heads. A plurality of structural ribs are formed in the helmet to distribute and absorb forces, and a force absorbing liner is provided within the helmet. A plurality of ventilation openings are included, to keep the inside of the helmet cool.
    Type: Grant
    Filed: August 21, 1981
    Date of Patent: September 20, 1983
    Assignee: Amer Sport International Inc.
    Inventor: Charles R. Farquharson
  • Patent number: 4293960
    Abstract: A helmet comprises a helmet lining; a helmet shell and an impact absorbing crash element for interposition between the helmet lining and a helmet shell, the helmet lining comprising a curved first part adapted to cover the nape of the neck and a curved second part adapted to cover the forehead, the first and second part being interconnected and arranged to be detachably secured to the crash element. The helmet lining is an example of a number of uses of an item of headgear to which accessories can be attached.
    Type: Grant
    Filed: May 22, 1979
    Date of Patent: October 13, 1981
    Inventor: Tore G. Palmaer
  • Patent number: 4287613
    Abstract: A headgear comprising a helmet shell and a combination of energy-absorbing and sizing means mounted on the inside surface of the shell. The combination includes a crown-engaging structure either in the form of a web suspension or an air-inflatable means. These pad structures comprise curved assemblies which engage the forehead and back of the wearer's head and the pad structures enable automatic alignment of the helmet along the long axis of the head whereby the air-inflatable side members are operated after the helmet has been put on the head. Air inflatable sizing means are located intermediate the pad structures at the front and back of the shell, and these sizing means engage the respective sides of the werer's head to provide a side-to-side fit on the head. A combination serving as a sizing means and energy-absorbing means is located on the lower rear inside wall of the shell. Separate energy-absorbing pad structures are located on the front and back inner walls of the shell.
    Type: Grant
    Filed: October 6, 1980
    Date of Patent: September 8, 1981
    Assignee: Riddell, Inc.
    Inventor: Arthur M. Schulz
  • Patent number: 4263679
    Abstract: A head band for a hard hat and including a nape strap of a material conforming to the head and held away from the head band against the nape area by two stiff strut members.
    Type: Grant
    Filed: January 25, 1979
    Date of Patent: April 28, 1981
    Inventor: Ronald R. Erlendson
  • Patent number: 4231117
    Abstract: A helmet assembly which accurately positions a portable visual display unit carried by the helmet shell thereof in a predetermined position relative to the eye of the wearer. The outer shell and an inner helmet assembly adapted to fit relatively closely over the wearer's head each have portions overlying the wearer's forehead which are maintained in predetermined spaced relationship with each other by readily releasable adjustable fasteners.
    Type: Grant
    Filed: January 15, 1979
    Date of Patent: November 4, 1980
    Assignee: Gentex Corporation
    Inventor: Jackson A. Aileo
  • Patent number: 4032127
    Abstract: Protective equipment for the head, body, or the like, having at least one module comprising levers and displaceable bearing means.
    Type: Grant
    Filed: February 4, 1974
    Date of Patent: June 28, 1977
    Assignee: Deres Development Corporation
    Inventor: Donald Ernest Lipfert