Francis W Larkin

US Patent:

47031727, Oct 27, 1987

Filed:

Mar 17, 1986

Appl. No.:

6/840147

Inventors:

William Sherman - Medford NJ
Francis C. Larkin - Trenton NJ
Stephen J. Horvath - Bensalem PA

Assignee:

Brandt, Incorporated - Bensalem PA

International Classification:

G01N 904
G06M 700

US Classification:

250223R

Abstract:

Sensors in the infeed and output stackers, under control of the microprocessor, monitor the sheets. The apparatus is started automatically by placing sheets in the infeed. A count of the sheets is developed and displayed as the sheets are fed. When the infeed is empty and the output contains sheets, the count is retained. If sheets are removed from the outfeed, the count is retained and is reset only after more sheets are placed in the input. The same rules obtain for batching. The sensors cooperate with singles, holes and doubles detectors and have their gain adjusted depending upon sheet density. Automatic threshold adjustment circuits compensate for dust build-up and component aging. Upon sheet detection, the sensing circuit threshold level is instantaneously shifted to prevent an abrupt change in intensity from the sheet covering the sensor to provide an erroneous indication of the presence of a subsequent sheet or sheets. The sensors assure accurate counting even through sheets are fed in skewed and/or overlapping fashion.

US Patent:

46715029, Jun 9, 1987

Filed:

Mar 14, 1986

Appl. No.:

6/839617

Inventors:

William Sherman - Medford NJ
Francis C. Larkin - Trenton NJ
Stephen J. Horvath - Bensalem PA

Assignee:

Brandt, Inc. - Bensalem PA

International Classification:

G06M 706

US Classification:

271 4

Abstract:

Sensors in the infeed and output stackers, under control of the microprocessor, monitor the sheets. The apparatus is started automatically by placing sheets in the infeed. A count of the sheets is developed and displayed as the sheets are fed. When the infeed is empty and the output contains sheets, the count is retained. If sheets are removed from the outfeed, the count is retained and is reset only after more sheets are placed in the input. The same rules obtain for batching. The sensors cooperate with singles, holes and doubles detectors and have their gain adjusted depending upon sheet density. Automatic threshold adjustment circuits compensate for dust build-up and component aging. Upon sheet detection, the sensing circuit threshold level is instantaneously shifted to prevent an abrupt change in intensity from the sheet covering the sensor to provide an erroneous indication of the presence of a subsequent sheet or sheets. The sensors assure accurate counting even though sheets are fed in skewed and/or overlapping fashion.

US Patent:

46087044, Aug 26, 1986

Filed:

Nov 10, 1982

Appl. No.:

6/440584

Inventors:

William Sherman - Medford NJ
Francis C. Larkin - Trenton NJ
Stephen J. Horvath - Bensalem PA

Assignee:

Brandt, Incorporated - Watertown WI

International Classification:

G06M 706

US Classification:

377 8

Abstract:

Sensors in the infeed and output stackers, under control of the microprocessor, monitor the sheets. The apparatus is started automatically by placing sheets in the infeed. A count of the sheets is developed and displayed as the sheets are fed. When the infeed is empty and the output contains sheets, the count is retained. If sheets are removed from the outfeed, the count is retained and is reset only after more sheets are placed in the input. The same rules obtain for batching. The sensors cooperate with singles, holes and doubles detectors and have their gain adjusted depending upon sheet density. Automatic threshold adjustment circuits compensate for dust build-up and component aging. Upon sheet detection, the sensing circuit threshold level is instantaneously shifted to prevent an abrupt change in intensity from the sheet covering the sensor to provide an erroneous indication of the presence of a subsequent sheet or sheets. The sensors assure accurate counting even though sheets are fed in skewed and/or overlapping fashion.

US Patent:

47075996, Nov 17, 1987

Filed:

Mar 17, 1986

Appl. No.:

6/840961

Inventors:

William Sherman - Medford NJ
Francis C. Larkin - Trenton NJ
Stephen J. Horvath - Bensalem PA

Assignee:

Brandt, Incorporated - Bensalem PA

International Classification:

G01N 904
G06M 700

US Classification:

250223R

Abstract:

Sensors in the infeed and output stackers, under control of the microprocessor, monitor the sheets. The apparatus is started automatically by placing sheets in the infeed. A count of the sheets is developed and displayed as the sheets are fed. When the infeed is empty and the output contains sheets, the count is retained. If sheets are removed from the outfeed, the count is retained and is reset only after more sheets are placed in the input. The same rules obtain for batching. The sensors cooperate with singles, holes and doubles detectors and have their again adjusted depending upon sheet density. Automatic threshold adjustment circuits compensate for dust build-up and component aging. Upon sheet detection, the sensing circuit threshold level is instantaneously shifted to prevent an abrupt change in intensity from the sheet covering the sensor to provide an erroneous indication of the presence of a subsequent sheet or sheets. The sensors assure accurate counting even through sheets are fed in skewed and/or overlapping fashion.