Dispensing – With recorder – register – indicator – signal or exhibitor – Position or extent of motion indicator
Patent
1975-02-13
1977-01-25
Tollberg, Stanley H.
Dispensing
With recorder, register, indicator, signal or exhibitor
Position or extent of motion indicator
222404, B67D 522
Patent
active
040047148
ABSTRACT:
A dry developing apparatus equipped with a developer amount detector, includes a container in which the developer is contained, a rotational member for agitating or carrying the developer, a support for supporting the rotational member in such a way that the rotational member, when rotated, is displaceable axially under the force of the load resistance produced by the presence of the developer, a holder for holding the rotational member so as to cause the member to return in the direction opposite to the direction of the displacement when the lead resistance is lessened with decrease of the developer, and a detector for detecting the difference in the amount of the axial displacement of the rotational member.
REFERENCES:
patent: 1813519 (1931-07-01), Varusky
patent: 3366276 (1968-01-01), Fridley
patent: 3581517 (1971-06-01), Pizzi
Ito Yoshio
Kitajima Tadayuki
Touyama Yoshikuni
Canon Kabushiki Kaisha
Lane Hadd
Tollberg Stanley H.
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