Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator
Patent
1991-09-20
1993-01-26
Echols, P. W.
Metal working
Means to assemble or disassemble
Puller or pusher means, contained force multiplying operator
116 3, 181141, 181152, 181155, 181159, 181191, 181194, B29D 1700
Patent
active
051813017
ABSTRACT:
A vehicle warning system (1) is disclosed. The device includes a main housing (2) to which is attached a sound generator (7), a lighting system (4), a mounting bracket (4) which is used to attach the device to an emergency vehicle, and a trim ring (6) which conceals the structure for mounting the device. As a sound signal is produced by the generator (7) it passes through a nozzle (9) and an aperture (14) into a deflector means (3) which is designed to expand and direct the sound signal through carefully proportioned chambers (30) and (33) of the deflector (3) so as to direct the sound signal against the closed portion (15) of expander horn (16) and out the open portion of the expander horn (16). In operation the sound generating system is attached to an amplifier of well known design and is capable of producing a variety of sound signals.
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Echols P. W.
Garvin, Jr. John C.
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