Title: Folding system with photoelectric detection means

Do you think this is a good invention? Vote now:

Votes so far: For:(0) Against:(0)
Claims: What is claimed is:

1. In an apparatus for folding sheet or film form material comprising means to propel a plurality of foldable work pieces toward a folding means; switch control means operative in combination with said work piece adapted to activate said folding means; the improvement which comprises said switch control means comprising a remote light source; a plurality of optical fiber light guides each having one end in optical alignment for reception of light from said light source and the other end optically aligned, through an optical cable coupling means, with an optical lens in a projector assembly; mounting means which positions said projector assembly in cleaning relation proximate to said workpieces; photo receptor means comprising photo detector means, spaced from and optically aligned with said projector assembly adapted to permit passage of said work pieces between said receptor means and said projector assembly in a light modulating manner; and means, associated with and operated by each of said photo receptor means, to activate and inactivate respectively said folding means as a function of said workpiece induced light modulation.

2. The improved apparatus claimed in claim 1 wherein said light is collimated.

3. The improved apparatus claimed in claim 1 including remote light verification means comprising one of said light guides and a direct readout means optically aligned with one end thereof.

4. The improved apparatus claimed in claim 1 including master power control switch means operatively activated by light from said remote light source passed through an optical fiber light guide.

5. The improved apparatus claimed in claim 1 including mounting means for said light projection means so positioned as to induce sliding, and therefore cleaning, contact between said work pieces and said light projection means.

6. The improved apparatus claimed in claim 1 including transparent cover means in said projector assembly and said photoreceptor means mounted between said lens and said work piece and said photo detector means and said work piece respectively.

Other info:

Inventors: Sussman, Arthur (Teaneck, NJ, US)

Application Number: 762274
Filing Date: 1977-01-25
Publication_date: 1978-04-25
Assignee:
Primary Class(es): 493/14 250/227.21, 250/559.4, 493/19, 493/405
Other Classes:
US Patent Ref:

3773315	Nov, 1973	Tsien	270/69.
3806730	Apr, 1974	Tirkkonen et al.	250/227.

Other Refs:
Primary Examiner: Smith, Alfred E.
Assistant Examiner: Moore, David K.
Attorney: