Abstract: An improved display provides information regarding a projectile trajectory so that a user is informed whether or not there is a clear shot. The improved display provides one or more path indicators shown over the cross hairs. In some embodiments, an intermediate point in the projectile trajectory is an aiming point and is indicated in relation to the visualized target. The rangefinder device is calibrated to a bow having a bow sight, for example, having a twenty-yard pin. The aiming point is display showing the intermediate point in the projectile trajectory that corresponds with the bow sight pin. The archer places the bow sight pin on the point visualized in the rangefinder device.

Abstract: A digital rangefinder system indicates to a user a projectile trajectory to a target. The digital rangefinder system comprises a computing element, digital display, a memory, a range sensor, a tilt sensor in a housing. Embodiments include a digital camera, a high-resolution digital display, and GPS. Embodiments may comprise mobile smart phones with removable range sensors, handheld digital rangefinder devices, weapon mounted scopes, or simulation games. The system is capable of dynamically displaying an aiming point and adjusting for wind drift. The system may capture images and videos, create animations, and upload them to the Internet. The system may visually highlight obstacles or objects having a predetermined distance. A method aspect is calibrating the system to an individual bow having a bow sight.

Abstract: An improved display provides information regarding a projectile trajectory so that a user is informed whether or not there is a clear shot. The improved display provides trajectory path indicator shown over cross hairs. In some embodiments, an intermediate point in the projectile trajectory is an aiming point and is indicated in relation to the visualized target. A rangefinder device is calibrated to a weapon having a sight, such as a bow sight. The aiming point is displayed showing the intermediate point in the projectile trajectory that corresponds with a pin in the bow sight. The rangefinder device may be calibrated using a calibration sheet. The display may include a level. The trajectory path indicator shows the aiming point, which is the highest point in the projectile trajectory as perceived by the user.

Abstract: A digital rangefinder system indicates to a user a projectile trajectory to a target. The digital rangefinder system comprises a computing element, digital display, a memory, a range sensor, a tilt sensor in a housing. Embodiments include a digital camera, a high-resolution digital display, and GPS. Embodiments may comprise mobile smart phones with removable range sensors, handheld digital rangefinder devices, weapon mounted scopes, or simulation games. The system is capable of dynamically displaying an aiming point and adjusting for wind drift. The system may capture images and videos, create animations, and upload them to the Internet. The system may visually highlight obstacles or objects having a predetermined distance. A method aspect is calibrating the system to an individual bow having a bow sight.

Abstract: An improved display provides information regarding a projectile trajectory so that a user is informed whether or not there is a clear shot. The improved display provides trajectory path indicator shown over cross hairs. In some embodiments, an intermediate point in the projectile trajectory is an aiming point and is indicated in relation to the visualized target. A rangefinder device is calibrated to a weapon having a sight, such as a bow sight. The aiming point is displayed showing the intermediate point in the projectile trajectory that corresponds with a pin in the bow sight. The rangefinder device may be calibrated using a calibration sheet. The display may include a level. The trajectory path indicator shows the aiming point, which is the highest point in the projectile trajectory as perceived by the user.

Abstract: An arrow construction system comprising a tip canister configured to receive an arrow tip and to attach to an arrow shaft. The tip canister contains a power source and sensitive electronics. The power circuit may be a battery, a primary storage capacitor, a coil and a rectifier, and/or a solar cell. The tip canister may be electrically connected to the nock via the shaft electrical conduction system. The electrical conductors may be integrated into the shaft. The wires may form a cable with standard connectors. The nock may contain a light. Alternatively, the fletching may comprise light emitting film or fibers. The circuits may include a flash circuit, an audio circuit, a radio beacon, a wireless transmitter, environmental sensors, a camera, a switch, and/or a GPS device. The switch may be activated by a current detected in a coil or by an accelerometer.

Abstract: An arrow construction system comprising a tip canister configured to receive an arrow tip and to attach to an arrow shaft. The tip canister contains a power source and sensitive electronics. The power circuit may be a battery, a primary storage capacitor, a coil and a rectifier, and/or a solar cell. The tip canister may be electrically connected to the nock via the shaft electrical conduction system. The electrical conductors may be integrated into the shaft. The wires may form a cable with standard connectors. The nock may contain a light. Alternatively, the fletching may comprise light emitting film or fibers. The circuits may include a flash circuit, an audio circuit, a radio beacon, a wireless transmitter, environmental sensors, a camera, a switch, and/or a GPS device. The switch may be activated by a current detected in a coil or by an accelerometer.

Abstract: An easy to use, reliable, easy to repair, universal, simple, lightweight, compact, portable, multi-use modular system of poles and interconnections. An operator configures a number of structures using brackets, supports, segmented shafts, and interconnection components. The segmented shafts have both the ability to make an attachment to retain a particular configuration while being able to break down the shafts for transportation or storage. Some embodiments include a sleeve that protects the tip of a pole and provide a cushion and separation between a pole and a ferrule thereby reducing breakage and increase reliability. Broken components are easily replaced in the field. The configuration of the structure is changed by the user to quickly adapt to changing needs. Multiple components can be carried by separate members of a group and combined together to form a more complex structure to meet the needs of the group.

Abstract: A system for indicating to a user a clear shot along a projectile trajectory to a target wherein one of the trajectory path indicators indicates a height of the projectile trajectory at a predetermined intermediate range to the target whereby the user is informed regarding whether or not an obstacle is in the projectile trajectory. The system facilitates accurate, effective, and safe firearm and bow use by providing indications regarding obstacles that are between the shooter and target and which may or may not be in the projectile trajectory. The system may indicate a calibrated aiming point, which is the maximum height of the projectile trajectory. Enhanced rangefinders have digital cameras and high-resolution displays. Some embodiments include a weapon scope, a simulation game device, and a mobile smart phone. A method of using the system.

Abstract: An easy to use, universal, simple, lightweight, compact, portable system of concealment and methods for its construction and use. The concealment system comprises a support and a curtain. The support attaches to a structure and pivots on the attachment. Various embodiments include multiple supports and multiple curtains. A method of hiding in front of a similar pattern. An alternate support may be used to form both tree blinds and ground blinds.

Abstract: An easy to use, universal, simple, lightweight, compact, portable and modular system of concealment and shelter. An operator can configure a number of concealment blinds or shelters using brackets, supports, segmented shafts, covers, curtains, and skirts, and more complex modules. The segmented shafts have both the ability to make an attachment to retain a particular configuration while being able to break down the shafts for transportation or storage. The brackets and supports can be used to secure a configuration to a tree, the ground, or a hand held device. More advanced modules include cover caps including domes, cylindrical arches, and pyramids. A configuration can include a removable floor. Guyline modules allow for sliding panels to be positioned over openings in a configuration. The system can be configured for placement on a hillside or over rough terrain and obstacles.

Abstract: An easy to use, universal, simple, lightweight, compact, portable, dynamically configurable system of concealment and shelter. An operator configures a number of concealment blinds or shelters using shafts and covers or shells. Some embodiments include user adjustable domes. A hubless, dynamic blind or shelter comprises two or more cover shafts and an adjustable strap which provides a freestanding, flexible frame. The frame is covered with a cover or skin. The cover adjusts to the dynamic changes in the frame. In one embodiment the cover is an elastic net that changes shape but maintains tight skin. In another embodiment the cover has expansion panels and lace. Embodiments include layout blinds and boat blinds which incorporate a quick release clip 1260, and which may be used to observe or hunt waterfowl. The system includes a low cost method of tightening the skin on a cover to reduce wind movement and noise.

Abstract: An easy to use, universal, simple, lightweight, compact, portable, dynamically configurable and modular system of concealment and shelter. An operator configures a number of concealment blinds or shelters using brackets, supports, segmented shafts, covers, curtains, and skirts, and more complex modules. The segmented shafts have both the ability to make an attachment to retain a particular configuration while being able to break down the shafts for transportation or storage. The brackets and supports are used to secure a configuration to a tree, the ground, or a hand held device. Advanced modules include user adjustable domes and cylindrical arches. The system can be configured for placement on a hillside or over rough terrain and obstacles. Multiple modules can be carried by separate members of a group and combined together to form a more complex structure to meet the needs of the group. The system provides a novel star window with independently opening sections.

Abstract: An easy to use, universal, simple, lightweight, compact, portable, dynamically configurable and modular system of concealment and shelter. An operator configures a number of concealment blinds or shelters using brackets, supports, segmented and folding shafts, covers, curtains, and skirts, and more complex modules. Advanced modules include user adjustable domes and angular structures. Angular frames with corresponding angular covers provide improved headroom. The system can be configured for placement on a hillside or over rough terrain and obstacles, or for different types use. The system provides covers with novel windows, movable panels, and configuration attachments. The operator changes the configuration of the structure to quickly provide cover, to increase cover, and to adapt to terrain or changing weather. The system includes novel methods of tightening the skin on a cover to reduce movement and noise, while improving safety.

Abstract: An easy to use, reliable, easy to repair, universal, simple, lightweight, compact, portable, multi-use modular system of poles and interconnections. An operator configures a number of structures using brackets, supports, segmented shafts, and interconnection components. The segmented shafts have both the ability to make an attachment to retain a particular configuration while being able to break down the shafts for transportation or storage. Some embodiments include a sleeve that protects the tip of a pole and provide a cushion and separation between a pole and a ferrule thereby reducing breakage and increase reliability. Broken components are easily replaced in the field. The configuration of the structure is changed by the user to quickly adapt to changing needs. Multiple components can be carried by separate members of a group and combined together to form a more complex structure to meet the needs of the group.

Abstract: An easy to use, universal, simple, lightweight, compact, portable system of concealment and methods for its construction and use. The concealment system comprises a support and a curtain. The support attaches to a structure and pivots on the attachment. Various embodiments include multiple supports and multiple curtains. A method of hiding in front of a similar pattern. An alternate support may be used to form both tree blinds and ground blinds.

Abstract: An easy to use, universal, simple, lightweight compact, portable, dynamically configurable and modular system of concealment and shelter. An operator configures a number of concealment blinds or shelters using brackets, support, segmented and telescoping shafts, covers, curtains, and skirts, and more complex modules. The brackets and supports are used to secure a configuration to a tree or the ground. Advanced modules included user adjustable domes and cylindrical arches. The system can be configured for placement on a hillside or over rough terrain and obstacles, or four different types use. The system provides covers with novel windows, movable panels, and configuration attachments. The operator changes the configuration of the structure to quickly provide cover, to increase cover, and to adapt to terrain or changing weather. The system includes novel methods of tightening the skin on a cover to reduce movement and noises.