Abstract: A toy vehicle slot track is disclosed with at least a pair of toy racing vehicles and at least a pair of guide slots, each guide slot in turn having a pair of exposed power supply rails. The toy vehicles are guided about the track by guide pins affixed to the toy vehicles, the guide pins running within the guide slots. In a first portion of the track, the guide slots are spaced apart at a distance greater than the maximum width of the toy vehicles. In a second portion of the track, the guide slots are spaced apart at a distance less than the maximum width of the toy vehicles. The power supply rails run parallel to and at a uniform spacing from the guide slots in both portions of the track, providing power in both track portions to electric motors contained in the toy vehicles.

Abstract: This invention pertains fasteners which are characterized by adaptability of use with substrates, such as steel panels for example, of various thicknesses. This is achieved predominately by providing the fastener with legs having an origin section in the vicinity of the head of the fastener. Expansion promoters and/or anti-sliding elements improve considerably the separation resistance of objects connected with the fasteners of the present invention. Assemblies and vehicles comprising the spring fasteners of this invention, connecting two objects, one of the objects comprising a slot in which the fastener is inserted, and the other a hole, are also included within the scope of the instant invention. Provision of an elastic body in the vicinity of the bottom section of the fasteners provides water and gas proof properties, and further assist in the elimination of squeaking noises.

Abstract: Assemblies comprising a fastener, which has engagement springs in opposite sides of the fastener. Each engagement spring has an engagement region comprising a hindrance portion, which increases considerably the removal to insertion force ratio as compared to such ratio in the absence of the hindrance portion, thus permitting very easy insertion with considerably more difficult removal of the fastener from the slot of a panel, which provides an efficient ergonomically balanced removal to insertion force ratio. The hindrance portion comprises ripples or other hindrance elements of unexpectedly minute dimensions for providing this efficient ergonomic force balance.

Abstract: This invention pertains fasteners which are characterized by easy insertion and extraordinarily difficult separation of items that they attach together. This is achieved by a combination of snapping segments with an elastic body disposed at least under the head of the fastener. The snapping segments may comprise anti-opening and/or anti-sliding portions, which immensely increase the strength with which the fasteners hold the objects together. The elastic body in the vicinity of the bottom section of the fasteners also provides water and gas proof properties, as well as elimination of squeaking noises. Vehicles comprising objects connected together by the fastening devices described and claimed herein are part of the instant invention.

Abstract: This invention pertains fasteners which are characterized by easy insertion and extraordinarily difficult separation of items that they attach together. This is achieved by a combination of snapping segments with an elastic body disposed at least under the head of the fastener. The snapping segments may comprise anti-opening and/or anti-sliding portions, which immensely increase the strength with which the fasteners hold the objects together. The elastic body in the vicinity of the bottom section of the fasteners also provides water and gas proof properties, as well as elimination of squeaking noises. Vehicles comprising objects connected together by the fastening devices described and claimed herein are part of the instant invention.

Abstract: This invention relates to a spring fastener, which comprises engagement springs in opposite sides of the fastener. Each engagement spring has an engagement region comprising a hindrance portion, which increases considerably the removal to insertion force ratio as compared to such ratio in the absence of the hindrance portion, thus permitting very easy insertion with considerably more difficult removal of the fastener from the slot of a panel, which provides an efficient ergonomically balanced removal to insertion force ratio. The hindrance portion comprises ripples or other hindrance elements of unexpectedly minute dimensions for providing this efficient ergonomic force balance.

Abstract: This invention relates to a spring fastener, which comprises engagement springs in opposite sides of the fastener. Each engagement spring has an engagement region comprising a hindrance portion, which increases considerably the removal to insertion force ratio as compared to such ratio in the absence of the hindrance portion, thus permitting very easy insertion with considerably more difficult removal of the fastener from the slot of a panel, which provides an efficient ergonomically balanced removal to insertion force ratio. The hindrance portion comprises ripples or other hindrance elements of unexpectedly minute dimensions for providing this efficient ergonomic force balance.

Abstract: This invention relates to a spring fastener, which comprises engagement springs in opposite sides of the fastener. Each engagement spring has an engagement region comprising a hindrance portion, which increases considerably the removal to insertion force ratio as compared to such ratio in the absence of the hindrance portion, thus permitting very easy insertion with considerably more difficult removal of the fastener from the slot of a panel, which provides an efficient ergonomically balanced removal to insertion force ratio. The hindrance portion comprises ripples or other hindrance elements of unexpectedly minute dimensions for providing this efficient ergonomic force balance. The combination of the above structures with the presence of barbs being bent at their front portion improves immensely the ergonomic character of the devices.

Abstract: Fasteners which are characterized by easy insertion and extraordinarily difficult separation of items that they attach together. This is achieved by snapping segments, which may comprise anti-opening and/or anti-sliding portions, which immensely increase the strength with which the fasteners hold the objects together. Vehicles comprising objects connected together by the fastening devices are part of the instant invention.

Abstract: This invention pertains fasteners which are characterized by easy insertion and extraordinarily difficult separation of items that they attach together. This is achieved by a combination of snapping segments with an elastic body disposed at least under the head of the fastener. The snapping segments may comprise anti-opening and/or anti-sliding portions, which immensely increase the strength with which the fasteners hold the objects together. The elastic body in the vicinity of the bottom section of the fasteners also provides water and gas proof properties, as well as elimination of squeaking noises. Vehicles comprising objects connected together by the fastening devices described and claimed herein are part of the instant invention.

Abstract: This invention relates to a spring fastener, which comprises engagement springs in opposite sides of the fastener. Each engagement spring has an engagement region comprising a hindrance portion, which increases considerably the removal to insertion force ratio as compared to such ratio in the absence of the hindrance portion, thus permitting very easy insertion with considerably more difficult removal of the fastener from the slot of a panel, which provides an efficient ergonomically balanced removal to insertion force ratio. The hindrance portion comprises ripples or other hindrance elements of unexpectedly minute dimensions for providing this efficient ergonomic force balance.

Abstract: This invention pertains fasteners which are characterized by adaptability of use with substrates, such as steel panels for example, of various thicknesses. This is achieved predominately by providing the fastener with legs having an origin section in the vicinity of the head of the fastener. Expansion promoters and/or anti-sliding elements improve considerably the separation resistance of objects connected with the fasteners of the present invention. Assemblies and vehicles comprising the spring fasteners of this invention, connecting two objects, one of the objects comprising a slot in which the fastener is inserted, and the other a hole, are also included within the scope of the instant invention. Provision of an elastic body in the vicinity of the bottom section of the fasteners provides water and gas proof properties, and further assist in the elimination of squeaking noises.

Abstract: This invention pertains fasteners which are characterized by easy insertion and extraordinarily difficult separation of items that they attach together. This is achieved by a combination of snapping segments with an elastic body disposed at least under the head of the fastener. The snapping segments may comprise anti-opening and/or anti-sliding portions, which immensely increase the strength with which the fasteners hold the objects together. The elastic body in the vicinity of the bottom section of the fasteners also provides water and gas proof properties, as well as elimination of squeaking noises. Vehicles comprising objects connected together by the fastening devices described and claimed herein are part of the instant invention.

Abstract: This invention relates to a spring fastener, which comprises engagement springs in opposite sides of the fastener. Each engagement spring has an engagement region comprising a hindrance portion, which increases considerably the removal to insertion force ratio as compared to such ratio in the absence of the hindrance portion, thus permitting very easy insertion with considerably more difficult removal of the fastener from the slot of a panel, which provides an efficient ergonomically balanced removal to insertion force ratio. The hindrance portion comprises ripples or other hindrance elements of unexpectedly minute dimensions for providing this efficient ergonomic force balance.

Abstract: A suction cup release mechanism is described which includes a lever pivotally mounted to a support. A linkage member extends from the lever to a suction cup at a remote end of the support. The linkage member is secured to a peripheral edge of the suction cup. Upon the lever being pivoted, a force is exerted by the linkage member to draw the peripheral edge of the suction cup away from a surface to which it is adhering until suction maintaining the suction cup in position is released.