Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1987-10-29
1989-05-16
Westin, Edward P.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
101233, 250223R, 271258, B65H 714
Patent
active
048312738
ABSTRACT:
A mailing machine system, including a mailing machine base and a feeder module secured to the base for conveying envelopes toward a postage meter secured to the base. The feeder module includes a horizontal feed deck and a vertical registration wall adjacent the feed deck and forming a right angle therewith. The system also includes an automatic override circuit for turning the mailing machine system on and off at particular times depending upon the presence or absence of an envelope on the feed deck, and a sensing device having an emitting element and a receiving element. One of the elements is situated in the feed deck and the other of the elements is situated in the registration wall. The sensing device is operatively connected to the on-off circuit, wherein the detection by the sensing device of the presence of an envelope causes the mailing machine system to be turned on and the lack of detection by the sensing device for a predetermined period of times causes the mailing machine system to be turned off.
REFERENCES:
patent: 3041462 (1962-06-01), Ogle
patent: 3676691 (1972-07-01), Nordine
patent: 3882308 (1975-05-01), Daughton et al.
patent: 4020616 (1977-05-01), Nakajima et al.
patent: 4331879 (1982-05-01), Gersl
patent: 4607833 (1986-08-01), Svyatsky et al.
Freeman Gerald C.
Ross William A.
Toth William D.
Pitchenik David E.
Pitney Bowes Inc.
Scolnick Melvin J.
Sklar Lawrence E.
Westin Edward P.
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