Reversible hanging plant support

Plant husbandry – Receptacle for growing medium – Hanging support

Reexamination Certificate

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Reexamination Certificate

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07020999

ABSTRACT:
A system for supporting a household plant includes an electric circuit for selectively moving the plant having a battery and a direct current motor for moving the plant. The motor control is by a first controllable switching device to connect the battery to the motor with a first polarity to cause the plant to move in a first direction, or a second controllable switching device to connect the battery to the motor with a second polarity opposite the first polarity to cause the plant to move in a second direction. A controller selectively enables either the first or second switching devices while leaving the other disabled and in conjunction with a light sensing device and analog comparison circuit precludes actuation of either switching device if inadequate growth promoting light is sensed.

REFERENCES:
patent: 3604536 (1971-09-01), Dinnerstein
patent: 4216619 (1980-08-01), Espy
patent: 4446653 (1984-05-01), Morgan
patent: 4574521 (1986-03-01), Landy
patent: 5315794 (1994-05-01), Pearson
patent: 5546698 (1996-08-01), Rock
patent: 6230440 (2001-05-01), Deutsch

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