Dental appliance for introducing a filler material into a tooth

Details Dental appliance for introducing a filler material into a tooth Dental appliance for introducing a filler material into a tooth

1974-12-23

1976-11-09

Peshock, Robert

Dispensing

Snap-acting outlet element

Axially movable tube, sleeve, or apertured cap

222252, 222333, A61C 504

Patent

active

039901521

ABSTRACT:
The appliance has a support which carries a discharge nipple having an elongated interior channel formed with an inlet and an outlet. A pair of tubular guides form a first and a second passage, respectively. The first passage has an open end and the second passage communicates with the inlet of the interior channel. A replaceable magazine has an elongated chamber for a quantity of the filler material and communicates of the open end of the channel in direction transversely to the elongation of the latter. A first expelling element is reciprocable in the first passage and the chamber for expelling a portion of the chamber material and charging it into the channel. A second expelling element is reciprocable in the second passage and channel for expelling the charged portion through the outlet of the nipple. A single drive is provided which effects coordinated reciprocation of both of the expelling elements.

REFERENCES:
patent: 3088207 (1963-05-01), Borsuk
patent: 3221409 (1965-12-01), Thiel et al.
patent: 3252624 (1966-05-01), Watson, Jr.
patent: 3322307 (1967-05-01), Fraser
patent: 3623224 (1971-11-01), Smith
patent: 3638314 (1972-02-01), Lopey et al.
patent: 3735492 (1973-05-01), Karter et al.
patent: 3751807 (1973-08-01), Noll et al.
patent: 3792530 (1974-02-01), Smith
patent: 3816922 (1974-06-01), Thiel et al.

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