Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator
Reexamination Certificate
2005-09-13
2005-09-13
Bryant, David P. (Department: 3726)
Metal working
Means to assemble or disassemble
Puller or pusher means, contained force multiplying operator
C029S270000, C029S010000, C029S896400, C081S300000, C081S424500, C081S427000, C072S409010, C140S121000
Reexamination Certificate
active
06941628
ABSTRACT:
The invention comprises tools for forming beads on one or more filaments using a malleable material for the bead. The tools exert bead-forming forces radially inward toward the filament and axially along the filament toward the center of the bead. The tools comprise pliers with jaws which meet flush with each other over at least a portion of the jaw face. Aligned cavities are formed in each jaw face wherein each cavity's dimension across the jaw face is less than the width of the jaw face. Grooves, aligned generally transverse to the width of the jaw face provide a filament-receiving channel between the cavity and the edge of the jaw face. Malleable material encompassing the filament is aligned between the aligned cavities and the jaws are closed. The radial force of the cavity walls on the malleable material deforms the malleable material radially and the walls of the cavity exert a force axially to form a bead. Tools with cavities having textures embossed, engraved, or otherwise patterned in relief on the cavity walls may be employed to impress a texture or design on a formed bead. Multiple filaments may be crimped together with this invention.
REFERENCES:
patent: 2753741 (1956-07-01), Riley
patent: 3261238 (1966-07-01), Amerling
patent: 3879981 (1975-04-01), Richards
patent: 4219919 (1980-09-01), Fischbein et al.
patent: 4318316 (1982-03-01), Guilliams
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patent: 4796318 (1989-01-01), Bigej
patent: D356520 (1995-03-01), Bartky
patent: 5426843 (1995-06-01), Bartky
patent: 5855048 (1999-01-01), Synowicki et al.
The Ganoksin Project Small Bench Tools Description, 10 pages Copyright (c) Charles Lewton-Brain 1992.
Bryant David P.
Cozart Jermie E.
Goltry Michael W.
Parsons Robert A.
Parsons & Goltry
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