BI-DIRECTIONAL SPRING BRAKE FOR A PHOTODUCTIVE DRUM

A photoconductive drum assembly according to one embodiment includes a photoconductive drum rotatable about a rotational axis in first and second rotational directions. A spring brake has a coiled portion wrapped around a portion of the photoconductive drum at its axial end and around the rotational...

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Main Authors FAHMY ALFRED LOUIS, DICKERSON JAMES ERIC, FREELS KYLE BENJAMIN
Format Patent
LanguageEnglish
Published 27.04.2017
Subjects
CINEMATOGRAPHY
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
MAGNETOGRAPHY
PHOTOGRAPHY
PHYSICS
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Abstract A photoconductive drum assembly according to one embodiment includes a photoconductive drum rotatable about a rotational axis in first and second rotational directions. A spring brake has a coiled portion wrapped around a portion of the photoconductive drum at its axial end and around the rotational axis of the photoconductive drum. The spring brake has a first arm and a second arm. The first arm is positioned to flex in an unwinding direction causing the coiled portion to unwind upon the first arm receiving a force in the first rotational direction. The first arm is positioned to flex in a winding direction and to push the second arm in an unwinding direction relieving winding of the coiled portion caused by the flexing of the first arm in the winding direction of the first arm upon the first arm receiving a force in the second rotational direction.
AbstractList A photoconductive drum assembly according to one embodiment includes a photoconductive drum rotatable about a rotational axis in first and second rotational directions. A spring brake has a coiled portion wrapped around a portion of the photoconductive drum at its axial end and around the rotational axis of the photoconductive drum. The spring brake has a first arm and a second arm. The first arm is positioned to flex in an unwinding direction causing the coiled portion to unwind upon the first arm receiving a force in the first rotational direction. The first arm is positioned to flex in a winding direction and to push the second arm in an unwinding direction relieving winding of the coiled portion caused by the flexing of the first arm in the winding direction of the first arm upon the first arm receiving a force in the second rotational direction.
Author FAHMY ALFRED LOUIS
FREELS KYLE BENJAMIN
DICKERSON JAMES ERIC
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Snippet A photoconductive drum assembly according to one embodiment includes a photoconductive drum rotatable about a rotational axis in first and second rotational...
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SubjectTerms CINEMATOGRAPHY
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
MAGNETOGRAPHY
PHOTOGRAPHY
PHYSICS
Title BI-DIRECTIONAL SPRING BRAKE FOR A PHOTODUCTIVE DRUM
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