Electricity: circuit makers and breakers – Foot operated
Reexamination Certificate
2006-01-17
2008-10-21
Mai, Anh T. (Department: 2832)
Electricity: circuit makers and breakers
Foot operated
C433S101000
Reexamination Certificate
active
07439463
ABSTRACT:
A foot switch device for activating a dental or medical treatment apparatus is provided. The foot switch device is particularly suitable for controlling an ultrasonic dental scaler. The foot switch device includes a base plate; a central housing attached to the base plate; an upper, moveable cover mounted on the housing; and a connecting collar attached to the upper cover for retaining the cover on the housing while allowing the cover to move upwardly and downwardly relative to the housing. The central housing contains a first electrical switch for transmitting a first signal to the apparatus, and a second electrical switch for transmitting a second signal to the apparatus. An operator depresses the upper cover with his or her foot to activate the switching mechanism and control the operation of the dental or medical apparatus.
REFERENCES:
patent: 3471928 (1969-10-01), Billin
patent: 3980848 (1976-09-01), Schultz et al.
patent: 4041609 (1977-08-01), Bresnahan et al.
patent: 4114275 (1978-09-01), Jones et al.
patent: 4156187 (1979-05-01), Murry et al.
patent: 4184510 (1980-01-01), Murry et al.
patent: 4354838 (1982-10-01), Hoyer et al.
patent: 4417875 (1983-11-01), Matsui
patent: 4798535 (1989-01-01), Nielsen
patent: 5091656 (1992-02-01), Gahn
patent: 5125837 (1992-06-01), Warrin et al.
patent: 5132498 (1992-07-01), Lee
patent: 5419703 (1995-05-01), Warrin et al.
patent: 5423231 (1995-06-01), Helfrich et al.
patent: 5431645 (1995-07-01), Smith et al.
patent: 5535642 (1996-07-01), Moll
patent: 5754016 (1998-05-01), Jovanovic et al.
patent: 6074388 (2000-06-01), Tockweiler et al.
patent: 6079687 (2000-06-01), Calleia
patent: 6303884 (2001-10-01), Hou et al.
patent: 6768425 (2004-07-01), Flaherty et al.
patent: 6866507 (2005-03-01), Beerstecher
patent: 6893261 (2005-05-01), Feine
patent: 2002/0137007 (2002-09-01), Beerstecher
patent: 2004/0115591 (2004-06-01), Warner
patent: 2005/0080403 (2005-04-01), Takahaski
patent: 2005/0147940 (2005-07-01), Mace
patent: 197 30 456 (1999-01-01), None
patent: 1 498 082 (2005-01-01), None
Brenner Tod
Lint Kevin
Anglo Lheiren Mae A
DENTSPLY International Inc.
Hura Douglas J.
Mai Anh T.
Sullivan Daniel W.
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