Abstract: A helmet has a shell with a front opening covered by a faceguard of elongated wire segments. Loopstraps engage around wire segments at sides and a crown of the shell and fasteners connect the loopstraps to the shell. The fasteners each have a nut extending from an inside of the helmet shell out into a hole of the shell and an aperture of the loopstrap, and a stud removably connected to the nut by pushing and turning the stud by about a quarter turn to lock the stud to the nut. A tension spring between a head of the stud and the loopstrap urges the stud away from the nut when the stud is rotated to unlock the stud for facilitating a quick removal of the stud from the nut and a quick disconnection of the loopstrap and faceguard from the helmet shell.

Abstract: A helmet has a ventilated shell, ventilated padding and a ventilated liner of plural cells mounted to the padding for engaging a wearer's head. The liner has top and bottom flexible sheets fused around their perimeter, the bottom sheet having plural round or oval toroidal cells and plural round or oval closed cells, the openings in the toroidal cells extending through the top sheet. Foam at least partly fills each cell. Cells under a crown of the shell are connected in a first circuit with a valve for inflating these cells and a other cells under temporal and occipital portions of the shell are connected in a second inflation circuit with a valve for inflating the second plurality of the cells. Cells under the frontal portion not being inflatable and being substantially filled with foam padding.

Abstract: A protective pad for a sports helmet having a shell for covering at least part of the head of a wearer, the pad including a first resilient shock absorbing member of plastic such as thermoplastic polyurethane, the first member having a sheet portion with a plurality of hollow protrusions, tapering side walls of the protrusions extending substantially to an inside surface of the side area of the shell and being compressible for absorbing shocks applied to the shell. The pad includes a second resilient shock absorbing member of a monolithic block of foam fixed to the sheet portion of the first member for engaging the wearer's head. A plastic cover covers the second shock absorbing member and a plurality of fasteners removably connects the pad at to the shell by at least some of the protrusions.

Abstract: A helmet has a ventilated shell, ventilated padding and a ventilated liner of plural cells mounted to the padding for engaging a wearer's head. The liner has top and bottom flexible sheets fused around their perimeter, the bottom sheet having plural round or oval toroidal cells and plural round or oval closed cells, the openings in the toroidal cells extending through the top sheet. Foam at least partly fills each cell. Cells under a crown of the shell are connected in a first circuit with a valve for inflating these cells and a other cells under temporal and occipital portions of the shell are connected in a second inflation circuit with a valve for inflating the second plurality of the cells. Cells under the frontal portion not being inflatable and being substantially filled with foam padding.

Abstract: A protective pad for a sports helmet having a shell for covering at least part of the head of a wearer, the pad including a first resilient shock absorbing member of plastic such as thermoplastic polyurethane, the first member having a sheet portion with a plurality of hollow protrusions, tapering side walls of the protrusions extending substantially to an inside surface of the side area of the shell and being compressible for absorbing shocks applied to the shell. The pad includes a second resilient shock absorbing member of a monolithic block of foam fixed to the sheet portion of the first member for engaging the wearer's head. A plastic cover covers the second shock absorbing member and a plurality of fasteners removably connects the pad at to the shell by at least some of the protrusions.

Abstract: A protective jaw pad for equipment having a shell includes a first resilient shock absorbing member having a sheet portion with a plurality of hollow protrusions, tapering side walls of the protrusions being compressible for absorbing shocks applied to the shell. The pad includes a second resilient shock absorbing member that is either a monolithic block of foam or is made up of a second sheet portion with a plurality of hollow protrusions that are interleaved with the first protrusion. A cover covers either the first or the second shock absorbing member and a plurality of fasteners removably connect the jaw pad to the shell.

Abstract: A quick release faceguard retainer for use with a protective headgear and faceguard. The headgear has a face opening and an outer surface with a selected curvature. The faceguard has at least one top substantially horizontal bar. The retainer includes a base portion with a front surface and a back surface. The back surface of the base is adapted to be fixedly attached to the outer surface of the headgear above the face opening and has a curvature matching the curvature of the outer surface of the headgear above the face opening. Two complementary retention arms protrude out from the front surface of the base to form two complementary retention channels. One channel has a downward opening and the other has an upward opening and both have an inner surface which together surround the top horizontal bar of the faceguard. Also provided is a faceguard engagement space between the two retention arms having a size for receiving the top bar.

Abstract: A protective arrangement has a rigid shell to cover a body part and at least one impact absorbing pad removably attached to the inner surface of the rigid shell. The pad has an outer part made of an outer curved sheet and an inner part made of an inner sheet that is parallel to and spaced inwardly from the outer sheet to define a space. The inner and outer sheets have a plurality of spaced apart projecting hollow protrusions extending to the other sheet, the protrusions of one sheet alternating with the protrusions of the other sheet to form an impact absorbing pattern of alternating protrusions in the space between the sheets.

Abstract: A helmet has shell with a front opening covered by a faceguard of elongated wire segments. Loopstraps engage around wire segments at sides and a crown of the shell and fasteners connect the loopstraps to the shell. The fasteners each have a nut extending from an inside of the helmet shell out into a hole of the shell and an aperture of the loopstrap, and a stud removably connected to the nut by pushing and turning the stud by about a quarter turn to lock the stud to the nut. A tension spring between a head of the stud and the loopstrap urges the stud away from the nut when the stud is rotated to unlock the stud for facilitating a quick removal of the stud from the nut and a quick disconnection of the loopstrap and faceguard from the helmet shell.

Abstract: A quick release faceguard retainer for use with a protective headgear and faceguard. The headgear has a face opening and an outer surface with a selected curvature. The faceguard has at least one top substantially horizontal bar. The retainer includes a base portion with a front surface and a back surface. The back surface of the base is adapted to be fixedly attached to the outer surface of the headgear above the face opening and has a curvature matching the curvature of the outer surface of the headgear above the face opening. Two complementary retention arms protrude out from the front surface of the base to form two complementary retention channels. One channel has a downward opening and the other has an upward opening and both have an inner surface which together surround the top horizontal bar of the faceguard. Also provided is a faceguard engagement space between the two retention arms having a size for receiving the top bar.

Abstract: A protective jaw pad for equipment having a shell includes a first resilient shock absorbing member having a sheet portion with a plurality of hollow protrusions, tapering side walls of the protrusions being compressible for absorbing shocks applied to the shell. The pad includes a second resilient shock absorbing member that is either a monolithic block of foam or is made up of a second sheet portion with a plurality of hollow protrusions that are interleaved with the first protrusion. A cover covers either the first or the second shock absorbing member and a plurality of fasteners removably connect the jaw pad to the shell.

Abstract: A protective arrangement has a rigid shell to cover a body part and at least one impact absorbing pad removably attached to the inner surface of the rigid shell. The pad has an outer part made of an outer curved sheet and an inner part made of an inner sheet that is parallel to and spaced inwardly from the outer sheet to define a space. The inner and outer sheets have a plurality of spaced apart projecting hollow protrusions extending to the other sheet, the protrusions of one sheet alternating with the protrusions of the other sheet to form an impact absorbing pattern of alternating protrusions in the space between the sheets.

Abstract: A walk-in child playhouse having pivotally attached seating surfaces. In one embodiment, the walk-in child playhouse comprises an enclosed rotomolded plastic structure having walls, a roof, and at least one chair or seat member pivotally attached to the playhouse. In another embodiment, the walk-in child playhouse has a garden party theme in which the roof has a canopy portion overhanging the rear of the house. Under the canopy are two chairs or seat members pivotally connected the rear wall and the roof via a pair of continuous bosses, the rear wall also having a substantially horizontally extending table disposed between the chairs and under the canopy. In another embodiment, the playhouse comprises a series of double-walled hollow parts that are interconnected by a unique snap interlock system. In yet another embodiment, the playhouse comprises a lateral connection member for joining various wall panels at a lower portion thereof.