Other

United Technologies Corportion

Robert W Perry

Forrest R Goodson

Patrick L Carney

An improved blasting composition comprising from about 13 to 15 weight percent unrefined petroleum wax, from about 15 to 20 weight percent aluminum powder, from about 10 to 52 weight percent sodium perchlorate and from about 10 to 52 weight percent ammonium nitrate. The blasting composition may be used in combination with ANFO and in place of conventional solid AP propellants and represents an economical alternative thereto.

Enhanced performance blasting agent

The present invention describes a method of using 1.1 solid rocket propellant in the detonation process for explosives. The use of the 1.1 solid rocket propellant is described as a booster for use in a blasting cap.

Beneficial use of class 1.1 rocket propellant

The invention involves a striking board for use in developing one's skill in the martial arts and comprises in its basic aspects in superimposed relation, a relatively flexible cushion member for striking with one's hand, supported by a relatively inflexible member, which in turn is supported by a relatively inflexible spacing member and a further relatively inflexible member, the latter member being of such a construction that the striking board can be held by hand or supported by a bracket support on a wall or other support surface. The bracket support supports the striking board of the invention by compression springs so as to offer suitable resistance to a striking blow. The striking board can be removed from the bracket support, if desired, and hand held by a training partner. The striking board is covered with leather or leather-like plastic coated fabric so as to present a pleasing appearance to the striking board, and less abrasiveness to one's hand in use.

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Morgan Hill, CA, United States of America

Robert W Perry