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EP0225288A3 - Apparatus for monitoring the thickness of an object - Google Patents

Apparatus for monitoring the thickness of an object Download PDF

Info

Publication number
EP0225288A3
EP0225288A3 EP86810537A EP86810537A EP0225288A3 EP 0225288 A3 EP0225288 A3 EP 0225288A3 EP 86810537 A EP86810537 A EP 86810537A EP 86810537 A EP86810537 A EP 86810537A EP 0225288 A3 EP0225288 A3 EP 0225288A3
Authority
EP
European Patent Office
Prior art keywords
thickness
pinch roller
roller mechanism
processed
lvdt
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP86810537A
Other languages
German (de)
French (fr)
Other versions
EP0225288A2 (en
Inventor
William R. Lile
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Opex Corp
Original Assignee
Opex Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Opex Corp filed Critical Opex Corp
Publication of EP0225288A2 publication Critical patent/EP0225288A2/en
Publication of EP0225288A3 publication Critical patent/EP0225288A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C1/00—Measures preceding sorting according to destination
    • B07C1/10—Sorting according to size or flexibility
    • B07C1/16—Sorting according to thickness or stiffness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43M—BUREAU ACCESSORIES NOT OTHERWISE PROVIDED FOR
    • B43M7/00—Devices for opening envelopes
    • B43M7/02—Devices for both opening envelopes and removing contents

Landscapes

  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • Controlling Sheets Or Webs (AREA)
  • Sorting Of Articles (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

A thickness monitoring device wherein a linear variable differential transformer (LVDT) device is operatively coupled with a pinch roller mechanism so that variations in thickness which are detected as an object passes through the pinch roller mechanism are converted, by the LVDT device, to electrical signals which may be digitally processed to yield an accurate indication of thickness, and content. Such processed signals are used to control various machine functions in accordance with the thickness or content of the object which has passed through the pinch roller mechanism.
Such a thickness monitoring device finds particular utility in connection with mail extraction equipment in that such a device enables the envelopes being processed to be accurately monitored so that the mail extraction operation can proceed in accordance with specific performance parameters.
EP86810537A 1985-11-27 1986-11-25 Apparatus for monitoring the thickness of an object Withdrawn EP0225288A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US80269085A 1985-11-27 1985-11-27
US802690 1985-11-27

Publications (2)

Publication Number Publication Date
EP0225288A2 EP0225288A2 (en) 1987-06-10
EP0225288A3 true EP0225288A3 (en) 1988-03-30

Family

ID=25184439

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86810537A Withdrawn EP0225288A3 (en) 1985-11-27 1986-11-25 Apparatus for monitoring the thickness of an object

Country Status (1)

Country Link
EP (1) EP0225288A3 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4953842A (en) * 1988-12-28 1990-09-04 Pitney Bowes Inc. Mail thickness measuring apparatus
US4935078A (en) * 1988-12-28 1990-06-19 Pitney Bowes Inc. High throughput mailing maching timing
US5238123A (en) * 1992-04-10 1993-08-24 Agissar Corporation Automated thickness and length detecting and sorting system for envelopes
GB9217568D0 (en) * 1992-08-19 1992-09-30 The Technology Partnership Ltd Device and method for detecting residual content of emptied envelopes
NL9202297A (en) * 1992-12-31 1994-07-18 Hadewe Bv Method and device for checking whether documents are separated from an opened envelope.
US5704246A (en) * 1993-10-20 1998-01-06 Bell & Howell Gmbh Device for measuring the thickness of objects to be handled in document-handling machines
WO1997031727A1 (en) * 1996-02-28 1997-09-04 Grapha-Holding Ag Device and method of selective transfer of items of mail
US6135292A (en) * 1998-12-21 2000-10-24 Pitney Bowes Inc. Method and system for presorting mail based on mail piece thickness

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2891667A (en) * 1954-08-17 1959-06-23 Nat Steel Corp Sheet classifiers
US3712468A (en) * 1971-02-24 1973-01-23 W Wenner Device which scans and detects for contents in a package
GB1506232A (en) * 1976-03-22 1978-04-05 Forth Instr Apparatus for measuring irregular thicknesses
EP0025976A2 (en) * 1979-09-19 1981-04-01 Kabushiki Kaisha Toshiba Device for detecting the thickness of a paper sheet
WO1982001698A1 (en) * 1980-11-07 1982-05-27 Tee Victor G Apparatus for detecting the thickness of sheets
US4353197A (en) * 1977-07-08 1982-10-12 Opex Corporation Content activated envelope extraction
US4408487A (en) * 1979-11-21 1983-10-11 Dai Nippon Insatsu Kabushiki Kaisha Carton's depressed line height measuring device
EP0169145A2 (en) * 1984-07-16 1986-01-22 Opex Corporation Envelope sorting apparatus

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2891667A (en) * 1954-08-17 1959-06-23 Nat Steel Corp Sheet classifiers
US3712468A (en) * 1971-02-24 1973-01-23 W Wenner Device which scans and detects for contents in a package
GB1506232A (en) * 1976-03-22 1978-04-05 Forth Instr Apparatus for measuring irregular thicknesses
US4353197A (en) * 1977-07-08 1982-10-12 Opex Corporation Content activated envelope extraction
EP0025976A2 (en) * 1979-09-19 1981-04-01 Kabushiki Kaisha Toshiba Device for detecting the thickness of a paper sheet
US4408487A (en) * 1979-11-21 1983-10-11 Dai Nippon Insatsu Kabushiki Kaisha Carton's depressed line height measuring device
WO1982001698A1 (en) * 1980-11-07 1982-05-27 Tee Victor G Apparatus for detecting the thickness of sheets
EP0169145A2 (en) * 1984-07-16 1986-01-22 Opex Corporation Envelope sorting apparatus

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
MESSEN + PR]FEN, vol. 19, no. 9, September 1983, pages 483-485, Bad Wörishofen; R. KR[MER "Mikroprozessorgesteuerter Zylinderkopf-Prüfautomat-Kernstück einer modernen Qualitätssicherung" *

Also Published As

Publication number Publication date
EP0225288A2 (en) 1987-06-10

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Inventor name: LILE, WILLIAM R.