Dentistry – Apparatus – Hand manipulatable implement
Patent
1988-09-15
1991-12-03
Stone, Cary E.
Dentistry
Apparatus
Hand manipulatable implement
128 62A, 132321, A61C 300
Patent
active
050696211
ABSTRACT:
A dental appliance in which an elongated handle has a rectangular aperture at one end for removably receiving an insert with a rectangular cross section hub that has at least one elongated detent channel which is engageable with a complementary elongated protuberance within the aperture. The channel and protuberance may be perpendicular or parallel with respect to the major axis of the hub insert. The hub is rigid and protrudes from the opposite side of the handle aperture so that the insert may be expelled from the handle by applying pressure to the protrusion. Once removed, the insert may be replaced or readied for reverse installation on the handle, particularly where the portion of the handle containing the aperture is angled.
REFERENCES:
patent: 1605320 (1926-11-01), Bates
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patent: 3660902 (1972-05-01), Axelsson
patent: 4033007 (1977-07-01), Hadary
patent: 4114216 (1978-09-01), Gatby
patent: 4222143 (1980-09-01), Tarrson et al.
patent: 4660583 (1987-04-01), Brown
patent: 4731896 (1988-03-01), de La Tour
Kersey George E.
Stone Cary E.
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