Abstract: A fire protection system for retarding the spread of wildfire toward a structure includes a structure positioned on a ground surface. A tank contains a fire retardant fluid. Each of a plurality of sprinklers has a base coupled to the ground surface with a line extending outwardly away from ground surface. Each sprinkler has a nozzle coupled to a distal end of the line relative to the ground surface. The line of each sprinkler is fluidically coupled to the nozzle and the base. Each of a plurality of heat sensors is positioned proximate a respective sprinkler of the plurality of sprinklers. When one of the plurality of heat sensors detects a predetermined rate of heat, a CPU activates a pump to pump the fire retardant fluid from the tank to the base of each sprinkler.

Abstract: A method for receiving cryptocurrency includes creating an account and a custom username for a user associated with the account; creating tickered usernames by combining a unique ticker and the custom username, each of the tickered usernames corresponding to a different type of cryptocurrency; and receiving, by the user, cryptocurrency sent to one of the tickered usernames, the cryptocurrency being of a type corresponding to the one of the tickered usernames.

Abstract: A deep hole drill head support pad whose edge chamfers are formed in a continuous grinding operation so that there are no discontinuities in the angled side surface leading up to the outer surface thereof. A method of manufacturing the support pad includes generating a virtual guide metric including a curved travel path for a grinding surface around a support pad blank, and a plurality of control surfaces intersecting with the curved path at separate locations along its length, each control surface defining an angle of orientation of the grinding surface. A CNC grinding machine can interpret the virtual guide metric to change the angle of orientation of a grinding surface relative to a support pad blank as it moves between adjacent control surfaces in a continuous manner.

Abstract: A deep hole drill head support pad whose edge chamfers are formed in a continuous grinding operation so that there are no discontinuities in the angled side surface leading up to the outer surface thereof. A method of manufacturing the support pad includes generating a virtual guide metric including a curved travel path for a grinding surface around a support pad blank, and a plurality of control surfaces intersecting with the curved path at separate locations along its length, each control surface defining an angle of orientation of the grinding surface. A CNC grinding machine can interpret the virtual guide metric to change the angle of orientation of a grinding surface relative to a support pad blank as it moves between adjacent control surfaces in a continuous manner.

Abstract: A vibration damper for a drill tube of a hole machining apparatus includes a closed loop bi-directional adjustment mechanism, which operates from a single side of the damper. The closed loop mechanism ensures that the position of the clamping sleeve has a one-to-one relationship with the adjustment mechanism, which enables controlled adjustment of the clamping force to be performed. Locating the adjustment mechanism at one side of the clamping sleeve facilitates re-tooling, e.g. replacing the clamping sleeve if a larger diameter drill tube is to be used.

Abstract: A deep hole drill head support pad whose edge chamfers are formed in a continuous grinding operation so that there are no discontinuities in the angled side surface leading up to the outer surface thereof. A method of manufacturing the support pad includes generating a virtual guide metric including a curved travel path for a grinding surface around a support pad blank, and a plurality of control surfaces intersecting with the curved path at separate locations along its length, each control surface defining an angle of orientation of the grinding surface. A CNC grinding machine can interpret the virtual guide metric to change the angle of orientation of a grinding surface relative to a support pad blank as it moves between adjacent control surfaces in a continuous manner.

Abstract: A pair of camouflage eyeglasses for concealing the eyes of a hunter comprise two temple portions and a front frame portion defining a pair of eye encircling rims. Mounted in each rim is an open-weave camouflage netting material having colors and patterns adapted to blend into various hunting terrains. The netting mesh is sized to camouflage effectively the eyes of the hunter while not significantly interfering with his vision.