Abstract: A helmet for rotational energy management can include an outer energy management layer comprising an outer surface and an inner surface opposite the outer surface. The inner surface can comprise a first slidable finish comprising a first glaze comprising a thickness less than or equal to 2 millimeters (mm). An inner energy management layer can be disposed within the outer energy management layer and further comprise an outer surface oriented towards the outer energy management layer and an inner surface opposite the outer surface. The outer surface can comprise a second slidable finish that directly contacts the first slidable finish. The second slidable finish can comprise a second glaze comprising a thickness less than or equal to 2 mm. A space between the first slidable finish and the second slidable finish can be devoid of a lubricant and devoid of any interstitial slip layer.

Abstract: A compact folding bicycle carrier has a frame, a folding lower foot member and a pair of folding articulated upper carrying members. The lower foot member is pivotally mounted to a lower end of the frame and constrained for limited movement relative thereto. Each articulated carrying member has a supporting arm and a carrying arm. One end of each supporting arm is pivotally mounted to an upper end of the frame at opposite sides thereof. Each carrying arm is associated with one supporting arm. Each carrying arm has a cradle for holding a bicycle adjacent one end and an upper foot at the other end. Each carrying arm, between the cradle and the upper foot, is pivotally mounted to its respective supporting arm. The supporting arms are constrained for limited movement relative to the frame and each carrying arm is constrained for limited movement relative to its respective supporting arm.

Abstract: A compact folding bicycle carrier has a frame, a folding lower foot member and a pair of folding articulated upper carrying members. The lower foot member is pivotally mounted to a lower end of the frame and constrained for limited movement relative thereto. Each articulated carrying member has a supporting arm and a carrying arm. One end of each supporting arm is pivotally mounted to an upper end of the frame at opposite sides thereof. Each carrying arm is associated with one supporting arm. Each carrying arm has a cradle for holding a bicycle adjacent one end and an upper foot at the other end. Each carrying arm, between the cradle and the upper foot, is pivotally mounted to its respective supporting arm. The supporting arms are constrained for limited movement relative to the frame and each carrying arm is constrained for limited movement relative to its respective supporting arm.

Abstract: A universal folding carrier for carrying objects on tailgates of pickup trucks and trunk lids of automobiles or the like has a substantially U-shaped frame, a substantially U-shaped carrying member and a substantially U-shaped supporting member. The folding carrier is movable between a folded or storage position and a locked extended or operational position. The carrying arm is pivotally mounted to the frame and the supporting member is pivotally mounted to the frame. A latching assembly includes a pair of first brackets. The first brackets are mounted on opposite sides of the frame. A pair of second brackets is mounted to opposite sides of the carrying member, each second bracket having a ramp portion and a latch. A latching assembly with first and second latching members is mounted to the first brackets. Each latching member has an engaging pin, the engaging pins extending from opposite ends of the latching members.

Abstract: A swing-out hitch mounted equipment carrier that is movable between collapsed and extended positions has a rectangular insert that is sized and shaped to be received in a trailer hitch receiver affixed to a vehicle. A fixed arm is attached to the insert. A swing arm is pivotally connected to the fixed arm. A vertical member having an equipment carrier affixed on an upper end is pivotally connected at a lower end to the swing arm. The vertical member is constrained for rotational movement about its longitudinal axis, the equipment carrier rotating with the vertical member. A controller is provided for controlling the ratio of the relative movement of the swing arm and equipment carrier as the swing-out hitch mounted equipment carrier is moved between the collapsed and extended positions.

Abstract: A swing-away hitch mounted equipment carrier that is movable between collapsed and extended positions has a rectangular insert that is sized and shaped to be received in a trailer hitch receiver affixed to a vehicle. A fixed arm is attached to the insert. A first swing arm is pivotally connected to the fixed arm and a second swing arm is pivotally connected to the first swing arm. A vertical member having an equipment carrier affixed on an upper end is pivotally connected at a lower end to the second swing arm. The vertical member is constrained for rotational movement about its longitudinal axis, the equipment carrier rotating with the vertical member. A first control member is provided for controlling the pivoting movement of the first and second swing arms as the swing-away hitch mounted equipment carrier is moved between the collapsed and extended positions.

Abstract: A collapsible bicycle carrier has a base that is configured to fit a trailer hitch receiver on a motor vehicle. An upright frame is operatively connected to the base. A T-shaped member having a vertical upright body and a horizontal crossbar is connected to the frame. A substantially U-shaped carrying assembly having a pair of carrying arms at an open end thereof is pivotally mounted to the crossbar. A slide having a tab is slidably received on the upright body. A bracket is rotatably mounted at its ends to the tab and a closed end of the carrying assembly. A lock is provided on the slide for locking the slide in first and second positions. The carrying arms are in an extended carrying position when the slide is locked in the first position and in a collapsed position when the slide is locked in the second position.

Abstract: A multi-purpose folding carrier for carrying bulky cargo includes a frame, an upper member rotatably disposed on the frame and a cage rotatably and slidably disposed on the frame, the cage being configured to restrain forward, lateral and rearward movement of cargo placed therein. The upper member and cage are constrained for limited pivotal and/or slidable movement relative to the frame between extended carrying positions and collapsed storage positions. A locking element or brace is provided for securing the upper member in its extended carrying position. A series of straps are provided for securing articles, such as, for example, a cooler, on the cage as well as for securing the carrier to an automobile. The upper member may be provided with a pair of hook members which facilitate fastening the carrier to an externally mounted spare tire.

Abstract: A foldable carrier that is mountable upon a motor vehicle having an externally-mounted spare tire and brake light support assembly includes rotatably connected frame, a carrying member, and a supporting member. The carrying and supporting members are constrained for limited rotational movement relative to the frame between an operational position and a stored position. The carrying member has a pair of carrying arms, a connecting member and a pair of inwardly extending feet. The feet, the connecting member and a portion of the carrying arms disposed between the feet and connecting member form a substantially C-shaped opening that permits the carrier to be mounted on the vehicle about the spare tire without interferring with the brake light support.

Abstract: A multi-purpose folding carrier for carrying bulky cargo includes a frame, an upper member rotatably disposed on the frame and a cage rotatably and slidably disposed on the frame, the cage being configured to restrain forward, lateral and rearward movement of cargo placed therein. The upper member and cage are constrained for limited pivotal and/or slidable movement relative to the frame between extended carrying positions and collapsed storage positions. A locking element or brace is provided for securing the upper member in its extended carrying position. A series of straps are provided for securing articles, such as, for example, a cooler, on the cage as well as for securing the carrier to an automobile. The upper member may be provided with a pair of hook members which facilitate fastening the carrier to an externally mounted spare tire.

Abstract: A method and apparatus for carrying one or more bicycles on a motor vehicle and a strap for securing the carrier to the motor vehicle. The strap includes a stretchable and contractible resilient web that is connected intermediate the ends of the strap. A loop is formed in the strap when the strap is not tightened. The web is stretched by tightening and serves to maintain tension in the strap. When tightened, adjacent surfaces of that portion of the strap forming the loop and the web are in close juxtaposition. Separation between adjacent surfaces of the resilient web and the portion of the strap that forms the loop, provides a visual indication of the degree of strap tension.

Abstract: A pocket tide calculator is described which predicts tide times and moon phases in a visual display which gives the semi-diurnal tide times in any given day of the month and can be readily set for the following month. This device automatically leaves out the high or low tide which is alternately missing every 7.5 days. This invention incorporates a compressed time scale when compared with a normal 24-hour clock face which enables a concise display of the semi-diurnal tide cycle.

Abstract: A method and apparatus for carrying one or more bicycles on a motor vehicle and a strap for securing the carrier to the motor vehicle. The strap includes a stretchable and contractible resilient web that is connected intermediate the ends of the strap. A loop is formed in the strap when the strap is not tightened. The web is stretched by tightening and serves to maintain tension in the strap. When tightened, adjacent surfaces of that portion of the strap forming the loop and the web are in close juxtaposition. Separation between adjacent surfaces of the resilient web and the portion of the strap that forms the loop, provides a visual indication of the degree of strap tension.

Abstract: A foldable carrier that is mountable upon a vehicle includes rotatably connected frame, carrying, and supporting members. The carrying member is constrained for limited rotational movement relative to the frame between a carrying position and a stored position. A locking element, including a latch means and an arm means, positively locks the carrying member in its extended operational position, thus preventing collapse of the carrier after it is in use. Bicycles and other items are secured to the carrier using a tie-down system including either strap securing elements positioned on the ends of the carrying members arms or a series of mounting elements slidably positioned on the arms of the carrying member.

Abstract: A method and apparatus for carrying one or more bicycles on a motor vehicle and a securing system for securing the carrier to the motor vehicle. The securing system includes a stretchable and contractible resilient web whose ends are attached to form a loop. A buckle is held within the loop and a strap is threaded through the buckle. The web, which is stretched by tightening the strap, maintains tension in the securing system. When tightened, adjacent surfaces of the loop and the web are in close juxtaposition. Separation between adjacent surfaces of the resilient web and the portion of the strap that forms the loop, provides a visual indication of the degree of tension in the securing system.

Abstract: A foldable carrier that is mountable upon a vehicle includes rotatably connected frame, carrying, and supporting members. The carrying member is constrained for limited rotational movement relative to the frame between a carrying position and a stored position. A locking element, including a latch means and an arm means, positively locks the carrying member in its extended operational position, thus preventing collapse of the carrier after it is in use. Bicycles and other items are secured to the carrier using a tie-down system including either strap securing elements positioned on the ends of the carrying members arms or a series of mounting elements slidably positioned on the arms of the carrying member.

Abstract: A method and apparatus for carrying one or more bicycles on a motor vehicle and a strap for securing the carrier to the motor vehicle. The strap includes a stretchable and contractible resilient web that is connected intermediate the ends of the strap. A loop is formed in the strap when the strap is not tightened. The web is stretched by tightening and serves to maintain tension in the strap. When tightened, adjacent surfaces of that portion of the strap forming the loop and the web are in close juxtaposition. Separation between adjacent surfaces of the resilient web and the portion of the strap that forms the loop, provides a visual indication of the degree of strap tension.

Abstract: A method and apparatus involving a mounting system for securing a carrier for carrying one or more bicycles on a motor vehicle. The mounting system, which is connected to both the motor vehicle and the carrier, includes a strap and a tensioning assembly that is connected intermediate the ends of the strap. In one embodiment, the tension assembly includes a frame, a slidable member and a compression spring that is positioned between the frame and slidable member. In another embodiment, the tension assembly includes a frame, a slidable member and a tension spring that is positioned between the frame and the slidable member. As the strap is tightened for securing the carrier to the motor vehicle, the tension assembly maintains the strap in tension when the strap would otherwise become slack due to jarring of the carrier.