Frank A Lucca, Age 35South Hadley, MA

5780764, Jul 14, 1998

Jan 11, 1996

8/548814

Brendan M. Welch - Farmington CT
Frank J. Lucca - Granby CT
Daniel A. Toro - Waterbury CT
Lyman G. Bahr - Payson UT

The Ensign-Bickford Company - Simsbury CT

F42B 300
C06C 504

102318

A booster explosive device (10) has a housing (12) within which is contained an explosive primer charge (14). Mechanical fastener components such as exterior screw threads (32) on housing (12) and interior screw threads (34) on an explosive accessory charge (20) may be engaged with each other in order to provide a charge assembly (30) comprised of device (10) and accessory charge (20). The outer peripheral surface (26) of accessory charge (20) is optionally concave so that accessory charge (20) optionally serves as a shaped charge to provide enhanced radial explosive output. Explosive primer charge (14) is configured so that the output tip (44b) of a detonator (44) contained therewithin is positioned below at least about 50 percent by weight of primer charge (14) and within the accessory section (10c) of device (10).

5703320, Dec 30, 1997

Jan 18, 1996

8/576003

Frank J. Lucca - Granby CT
Daniel P. Sutula - Farmington CT
Ronald M. Dufrane - North Granby CT
Ernest L. Gladden - Granby CT

The Ensign Bickford Company - Simsbury CT

C06C 504

1022757

A connector device (10, 214) for transferring a nonelectric blast initiation signal from a donor line (26, 224) to an acceptor line, e. g. , an input stub (24, 217) has donor line retaining means (20a, 20b, 229) for disposing a donor line (26, 224) in signal transfer relation to the input stub (24, 217). An anvil member (27, 130, 226) is provided to support input stub (24, 217) at the point where it is in signal transfer relation with the donor line (26), preferably in conforming contact with the donor line (26). In a particular embodiment, the connector device has a body portion (10a) on which is retained a detonator cap (22). Cap (22) detonates upon receipt of a detonation signal from an input stub (24), optionally after a delay period if delay elements are incorporated into the cap 22. The connector device (10) has retainer spring clips (20a, 20b) for retaining the donor line (26) in signal transfer relation to the input stub (24). An output line retaining member (16) holds the output line (28) in signal transfer relation to the detonator cap (22).

5597973, Jan 28, 1997

Jan 30, 1995

8/380839

Ernest L. Gladden - Granby CT
Gary R. Thureson - Avon CT
Alvaro Zappalorti - Avon CT
Eric R. Davis - Torrington CT
Frank J. Lucca - Granby CT

The Ensign-Bickford Company - Simsbury CT

C06B 4500
C06C 506

102289

A signal transmission fuse (10, 20) such as shock tube has an outside diameter (OD) not greater than about 2. 380 mm (0. 0937 inch), for example, a tube outside diameter (OD) of from about 0. 397 to 2. 380 mm (about 0. 0156 to 0. 0937 inch), and the ratio of the inside diameter (ID) of the tube to the radial thickness of the tube wall (T) is from about 0. 18 to 2. 5. The inside diameter (ID) of the tube may be from about 0. 198 to 1. 321 mm (about 0. 0078 to 0. 0520 inch). The powder surface density of the reactive material contained within the bore (16, 30) of the fuse (10, 20) may, but need not, be significantly less than that which the prior art considers to be a minimum acceptable powder surface density. Other things, such as the cost of the material used being equal, signal transmission fuse (10, 20) of the present invention is lower in cost than conventional standard sized fuse because of its reduced diameter, and yet has good stiffness and tensile strength so as to enable it to be successfully deployed and used in the same manner as standard size signal transmission fuse.

5413046, May 9, 1995

Mar 11, 1994

8/212200

Brian R. Sobczak - Granby CT
Frank J. Lucca - North Granby CT
Craig F. Adams - Granby CT
Ernest L. Gladden - Granby CT

The Ensign-Bickford Company - Simsbury CT

C06C 504

1022757

A signal transmission tube assembly includes a signal transmission tube, such as a coil of shock tube on a spool, having opposite terminal ends and containing a reactive material. The open terminal ends of the shock tube provide the sole exits for the signal generated therein and the sole entry points for contaminants. Sealing means seal both terminal ends of the signal transmission tube against escape from the assembly of the signal engendered by initiated reaction of the reactive material, and protects the interior of the signal transmission tube from contamination. The sealing means may be a releasable sealing means which can be actuated to release the transmission tube from it, thereby facilitating re-use of the sealing means. Further, the sealing means may comprise a surge chamber to relieve pressure engendered by reaction of the reactive material and thereby militate against rupture of the signal transmission tube and consequent release from the assembly of a signal. A signal-rupturable diaphragm may be interposed between the signal transmission tube and the surge chamber.