Dentistry – Apparatus – Having intra-oral dispensing means
Patent
1981-10-16
1983-05-10
Peshock, Robert
Dentistry
Apparatus
Having intra-oral dispensing means
433 90, 222391, 604135, A61C 504
Patent
active
043827896
ABSTRACT:
An improved manual pressure syringe for odontological use, includes a handgrip provided with a control lever, a barrel for a cartridge, and a bushing arranged on the longitudinal extension of the barrel. It also includes a shaft having a pushbutton at one end which is slidable in the bushing and acts on the piston of the cartridge, a thrust lever for the shaft operated by the control lever, and a coil spring arranged between the thrust lever and the bushing. The coil spring is formed of two end parts, the turns of which are of a larger diameter than that of the shaft, and an intermediate part, the turns of which are substantially of the same diameter as that of the shaft.
REFERENCES:
patent: 2643655 (1953-06-01), McKay
patent: 3612359 (1971-10-01), Sundholm
patent: 4072254 (1978-02-01), Cox
patent: 4083428 (1978-04-01), Ness
patent: 4339058 (1982-07-01), Wendt
Colombo Americo
Colombo Domenico
Collard Allison C.
Colombo Domenico
Galgano Thomas M.
Peshock Robert
Wilson John J.
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