Abstract: A shelter for outdoor recreation, comprising a base unit and a fixed unit mounted to a vehicle cargo box and a tilting unit pivotally attached to the base unit, said tilting unit rotates approximately 90 degrees to a nesting position over the fixed unit, thereby facilitating transport. The tilting unit quickly detaches from the fixed unit so that the vehicle can be used for other purposes. A bi-fold roof folds to provide clearance for nesting.

Abstract: A coreless-coil shock tube package system includes a “coreless” bundle of shock tubing, meaning that the tubing is not wrapped around a spool. The bundle may be a generally cylindrical coil of shock tubing. Optionally, two washer-like end plates abut the ends of the tubing coil for axial support. A self-adhesive tape covering partially covers the coil and end plates. A detonator is attached to one end of the tubing and lies tucked into the coil, through an end plate, for storage and transport. An igniter is attached to the tubing's other end. In use, the detonator is removed from the coil and attached to an explosive device. Then, the package is pulled away from the detonator and explosive, thereby uncoiling the tubing through the end plate for deployment. The igniter is actuated for igniting the shock tubing and activating the detonator and explosive.

Abstract: A coreless-coil shock tube package system includes a “coreless” bundle of shock tubing, meaning that the tubing is not wrapped around a spool. The bundle may be a generally cylindrical coil of shock tubing. Optionally, two washer-like end plates abut the ends of the tubing coil for axial support. A self-adhesive tape covering partially covers the coil and end plates. A detonator is attached to one end of the tubing and lies tucked into the coil, through an end plate, for storage and transport. An igniter is attached to the tubing's other end. In use, the detonator is removed from the coil and attached to an explosive device. Then, the package is pulled away from the detonator and explosive, thereby uncoiling the tubing through the end plate for deployment. The igniter is actuated for igniting the shock tubing and activating the detonator and explosive.

Abstract: A safety light system on an excavator or parked vehicle that is manually operated by the excavator operator. The unit is typically controlled by a single button located in the excavator cab. The excavator operator presses the button. A green LED, or other green light, projects a green beam of light toward the rear of the truck. This signals the truck driver that he can begin backing toward the excavator. At a predetermined distance, the excavator operator again pushes the button. The unit switches to an orange light. Finally, in a final position, the excavator operator again presses the button to project a red light. As the truck driver backs toward the excavator, he first sees green, then orange and finally red. Upon seeing red, he knows to stop backing. A fourth push can again project a green light signaling a safe condition for drive-away.

Abstract: A safety light system on an excavator or parked vehicle that is manually operated by the excavator operator. The unit is typically controlled by a single button located in the excavator cab. The excavator operator presses the button. A green LED, or other green light, projects a green beam of light toward the rear of the truck. This signals the truck driver that he can begin backing toward the excavator. At a predetermined distance, the excavator operator again pushes the button. The unit switches to an orange light. Finally, in a final position, the excavator operator again presses the button to project a red light. As the truck driver backs toward the excavator, he first sees green, then orange and finally red. Upon seeing red, he knows to stop backing. A fourth push can again project a green light signaling a safe condition for drive-away.

Abstract: A remotely controlled vehicle that can carry a laser detector or other survey equipment that can be wirelessly controlled from a piece of heavy equipment. A particular embodiment can be used to dig out level basements to a predetermined grade by placing a laser emitter on a support on the floor of the dig and maneuvering the remotely controlled vehicle carrying a laser detector from the cab of the digging equipment so that an entire basement dig can be dug out accurately level by a single person.

Abstract: In one aspect of the invention, a system for sharing resources in an ad-hoc peer-to-peer network is presented. The ad-hoc peer-to-peer network includes a host device that is associated with a resource. A security application of the host device allows the user of the host device to share the resource with other devices in the network. The security application also allows the user to establish access policies for certain known devices within the network. An access policy established for a known device specifies what rights the known device has with respect to accessing the resource. The access policy has the characteristics of inheritance. Thus, when a device requests to access the resource, the security application of the host device determines an access policy for the device based on access policies of one or more of the known devices.

Abstract: In one aspect of the invention, a system for sharing resources in an ad-hoc peer-to-peer network is presented. The ad-hoc peer-to-peer network includes a host device that is associated with a resource. A security application of the host device allows the user of the host device to share the resource with other devices in the network. The security application also allows the user to establish access policies for certain known devices within the network. An access policy established for a known device specifies what rights the known device has with respect to accessing the resource. The access policy has the characteristics of inheritance. Thus, when a device requests to access the resource, the security application of the host device determines an access policy for the device based on access policies of one or more of the known devices.

Abstract: A remotely controlled vehicle that can carry a laser detector or other survey equipment that can be wirelessly controlled from a piece of heavy equipment. A particular embodiment can be used to dig out level basements to a predetermined grade by placing a laser emitter on a support on the floor of the dig and maneuvering the remotely controlled vehicle carrying a laser detector from the cab of the digging equipment so that an entire basement dig can be dug out accurately level by a single person.

Abstract: A garden cultivation tool with a primary implement head demountably attached to one end of a handle and a secondary implement head demountably attachable to either side of the other end of the handle, each secondary attachment location positioned at an offset angle about the longitudinal axis relative to the primary implement head.

Abstract: In one aspect of the invention, a system for sharing resources in an ad-hoc peer-to-peer network is presented. The ad-hoc peer-to-peer network includes a host device that is associated with a resource. A security application of the host device allows the user of the host device to share the resource with other devices in the network. The security application also allows the user to establish access policies for certain known devices within the network. An access policy established for a known device specifies what rights the known device has with respect to accessing the resource. The access policy has the characteristics of inheritance. Thus, when a device requests to access the resource, the security application of the host device determines an access policy for the device based on access policies of one or more of the known devices.

Abstract: A garden cultivation tool with a primary implement head demountably attached to one end of a handle and a secondary implement head demountably attachable to either side of the other end of the handle, each secondary attachment location positioned at an offset angle about the longitudinal axis relative to the primary implement head.

Abstract: A rack for the storage of cutlery. Cutlery is attached for storage by means of magnets (13) and stop ledgers (12), which work in combination to hold the cutlery securely. The cutlery is held to the face of wedge-shaped protuberances (14) which, in the preferred embodiment, are aligned horizontally, one above the other, with their wide ends facing alternate directions. This positions the handles so they are easily accessible. A rectangular protuberance (16), which also has magnets and stop ledger, is provided for the storage of paring knives and small cutlery such as vegetable peelers.

Abstract: A location dependent signal processor for radiant energy detector arrays which include two-dimensional spatial filtering and/or background normalizing, with means providing programmed control of the signal processor filter weighting and normalizer thresholding operations as a function of the location of each successive output pixel with respect to the periphery of the detector array, so as to enable the signal processor to minimize the effects of initialization and wrap-around pixels on the processor signal output.

Abstract: A hand propelled soil cultivation tool for accepting several different cultivation implements is described which includes a forward gauge wheel and a quick adjustment means for handle length. The different tool attachments described include a hoe implement, a cultivation tine implement and a trenching implement. The hoe implement has a "V" shaped light gauge blade construction which is rigidified and locked to the implement shank by opposed blade stabilizer brackets. The cultivation tine implement is formed of a single elongated piece of metal and the trenching implement is constructed of two diametrically opposed sections.

Abstract: A knock-down collapsible carrier for storing and transporting athletic equipment such as a bicycle or the like. The carrier comprises a hollow housing unit, shaped and dimensioned in a tri-dimensional box-like structure, adopted to contain a partially dismantled bicycle. The housing unit includes a front wall, a rear wall, two side walls, and a top member, each of which comprises a pair of light-weight layers of flexible composition, for removably housing a plurality of resilient rigidifying inserts. The carrier further comprises a plurality of strap bands for retaining the bicycle inside the housing unit, leaving a clearance space therebetween.

Abstract: An optically-coupled/isolated electronic single pole double throw power relay switch with few parts routes a.c. power to one of two loads in response to a low-level control signal. Two gate-controlled bidirectional thyristors (Triacs) are made to switch in a complementary mode by gate-controlling one Triac from a light-sensitive element, and gate-controlling the other Triac from a gating circuit responsive to voltage appearing across the first Triac in its OFF state.