Abstract: A device for detecting human body odors produced from ammonia and amino acids—chemicals naturally excreted through the skin and sweat glands. Unless eliminated, such odors can alert game animals to a hunter's presence. Worn on the exterior of odor-absorbing clothing, the device includes both a packet and an indicator chemical sensitive to extremely low concentrations of nitrogen-containing compounds. The packet defines first and second openings which, in use, are directed away from and toward the wearer's body, respectively. Affixed to the packet, a transparent tape forms an airtight window through which one can continually view the indicator chemical, held in place within the first opening by the tape's adhesive backing. Accessible only to substances which pass through the wearer's clothing and then into the packet's interior via the second opening, the indicator chemical undergoes a permanent color change, once odor-producing chemicals begin to break through the clothing.

Abstract: A machine which capitalizes on the descent of water which has been elevated by making use of the random use of waves and or the velocity of the waters. A device which determines the true surface level in spite of random motions of the waters such as waves, surges and etc. by establishing the theory that water seeks its own level. A device which capitalizes on the velocity and weight of water, such as is present in waves and river waters, wherein the current has sufficient velocity to depress a ramp and produce useful energy.

Abstract: A hand-held circular saw designed for making square cuts on workpieces. The saw is equipped with a pair of retractable guide pins located near the rear of the blade; when both pins touch the front edge of the workpiece the saw's blade is automatically perpendicular to it. The saw is also equipped with at least one torsion spring that temporarily holds the saw's blade above the workpiece. Without moving the saw's base, the user turns on the saw, and pressing downwardly on its handle, lowers the blade into the workpiece, making a square cut with the accuracy of a cut-off saw. The guide pins can also be automatically or manually retracted to convert the improved saw back to a conventional saw.