Table saw with improved safety system

Cutting – With randomly actuated stopping means

Reexamination Certificate

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Details

C083S062100, C083S477200, C083S490000, C083S581000, C083S471300, C083S397100

Reexamination Certificate

active

07908950

ABSTRACT:
A table saw having an adjustable blade, a detection system to detect contact between a person and the blade, and a brake mechanism to engage and stop the blade upon detection of contact between the person and the blade is disclosed. The saw includes a brake positioning system that adjusts the position of the brake mechanism to maintain the brake mechanism in an operative position relative to the blade as the position of the blade is adjusted. The saw also may include a retraction system that urges the blade downward, away from a user, upon detection of contact between a person and the blade. The retraction system may include a releasable gear. The saw may be constructed so that the blade is adjustable up and down around a pivot point downstream of the blade relative to the feed direction.

REFERENCES:
patent: 1450906 (1923-04-01), Anderson
patent: 1811066 (1931-06-01), Tannewitz
patent: 2121069 (1938-06-01), Collins
patent: 2501134 (1950-03-01), Meckoski et al.
patent: 2785710 (1957-03-01), Mowery, Jr.
patent: 2984268 (1961-05-01), Vuichard
patent: 3224474 (1965-12-01), Bloom
patent: 3276497 (1966-10-01), Heer
patent: 3368596 (1968-02-01), Comer
patent: 3785230 (1974-01-01), Lokey
patent: 3858095 (1974-12-01), Friemann et al.
patent: 4453112 (1984-06-01), Sauer et al.
patent: 4559858 (1985-12-01), Laskowski et al.
patent: 5040444 (1991-08-01), Shiotani et al.
patent: 5201110 (1993-04-01), Bane
patent: 5943932 (1999-08-01), Sberveglieri
patent: 6037729 (2000-03-01), Woods et al.
IWF 2000 Challengers Award Official Entry Form, submitted Apr. 26, 2000, 6 pages plus CD (the portions of U.S. patent applications referenced in the form are from U.S. Appl. No. 60/157,340, filed Oct. 1, 1999 and U.S. Appl. No. 60/182,866, filed Feb. 16, 2000).
Two photographs of a saw displayed at a trade show on Aug. 23, 2000.

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