Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Reexamination Certificate
2004-09-27
2008-11-04
Lee, John R (Department: 2878)
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
C250S222100, C408S016000, C072S021300
Reexamination Certificate
active
07446301
ABSTRACT:
The invention relates to a safety device (45), in particular a beam-emitting and beam-receiving device, for a manufacturing machine (1), e.g. an edging press, with at least one retaining mechanism (51) for the safety device (45) designed as an adjusting mechanism (52) on a press beam (15,16) fitted with bending tools (36, 37) in a tool mounting device (35). By means of the retaining mechanism (51) designed as an adjusting mechanism (52) the beam emitter (47) and/or beam receiver (48) can be adjusted in a direction perpendicular to the standing surface (9) between at least one working position (55) and a park position (54), whereby in the park position (54) automatic locking takes place.
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The International Search Report for PCT Application No. PCT/AT2004/000321; Filed Sep. 27, 2004; Date of Completion Dec. 21, 2004; Date of Mailing Dec. 30, 2004.
Alston & Bird LLP
Lee John R
TRUMPF Maschinen Austria GmbH & Co. KG.
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