CA939595A - Process and agents for opening paper constructions - Google Patents

Process and agents for opening paper constructions

Info

Publication number
CA939595A
CA939595A CA109,896A CA109896A CA939595A CA 939595 A CA939595 A CA 939595A CA 109896 A CA109896 A CA 109896A CA 939595 A CA939595 A CA 939595A
Authority
CA
Canada
Prior art keywords
agents
opening paper
paper constructions
constructions
opening
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.)
Expired
Application number
CA109,896A
Other versions
CA109896S (en
Inventor
Nelson Whitman
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.)
Thor Dahl Inc
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CA146,650A priority Critical patent/CA945121A/en
Application granted granted Critical
Publication of CA939595A publication Critical patent/CA939595A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43M—BUREAU ACCESSORIES NOT OTHERWISE PROVIDED FOR
    • B43M7/00—Devices for opening envelopes
    • B43M7/004—Devices for opening envelopes including non-mechanical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D27/00—Envelopes or like essentially-rectangular containers for postal or other purposes having no structural provision for thickness of contents
    • B65D27/32—Opening devices incorporated during envelope manufacture
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S83/00—Cutting
    • Y10S83/912—Envelope openers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
CA109,896A 1970-04-13 1971-04-07 Process and agents for opening paper constructions Expired CA939595A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA146,650A CA945121A (en) 1970-04-13 1972-07-07 Process and agents for opening paper constructions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US2805170A 1970-04-13 1970-04-13

Publications (1)

Publication Number Publication Date
CA939595A true CA939595A (en) 1974-01-08

Family

ID=21841292

Family Applications (1)

Application Number Title Priority Date Filing Date
CA109,896A Expired CA939595A (en) 1970-04-13 1971-04-07 Process and agents for opening paper constructions

Country Status (2)

Country Link
US (1) US3677460A (en)
CA (1) CA939595A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3871573A (en) * 1970-04-13 1975-03-18 Thor Dahl Process and agents for opening paper constructions
US3815325A (en) * 1972-06-14 1974-06-11 Thor Dahl Mechanism for opening envelopes
GB1587525A (en) * 1977-10-06 1981-04-08 Avery International Corp Adhesive products having protective backings possessing embrittled zones and their manufacture
US4194342A (en) * 1978-09-27 1980-03-25 Aes Technology Systems, Inc. Folded paper edge opening process
US4222216A (en) * 1979-02-05 1980-09-16 Aes Technology Systems, Inc. Opening of envelope with darkened edges
US4228634A (en) * 1979-08-13 1980-10-21 Aes Technology Systems, Inc. Envelope opening process and composition
US4356679A (en) * 1980-03-31 1982-11-02 Aes Technology Systems, Inc. Apparatus for applying a degrading chemical to envelopes
US4356683A (en) * 1980-03-31 1982-11-02 Aes Technology Systems, Inc. Method and apparatus for holding and conveying a batch of envelopes to facilitate the opening of the envelopes
US4356684A (en) * 1980-03-31 1982-11-02 Aes Technology Systems, Inc. Batch method and apparatus for heating envelope edges to separate the envelope panels

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1411077A (en) * 1920-12-03 1922-03-28 Frank O Balogh Envelope
US1818505A (en) * 1927-12-16 1931-08-11 Celanese Corp Process of treating fabrics
US1710516A (en) * 1928-05-14 1929-04-23 Benjamin H Shapiro Ornamental lamp shade and method of making same
US2032645A (en) * 1933-08-18 1936-03-03 Northern Paper Mills Absorbent paper product and process of producing the same
US2957797A (en) * 1954-05-24 1960-10-25 Asahi Chemical Ind Preparation of reactive cellulosic material
US2989882A (en) * 1956-09-11 1961-06-27 Tribune Company Method and apparatus for slitting paper webs
US2866589A (en) * 1956-12-17 1958-12-30 Lawrence F Zacker Tear strip for envelopes and other containers
US3062749A (en) * 1958-09-02 1962-11-06 Robert F Herrling Composition and method for removing postage stamps
US3006793A (en) * 1960-08-19 1961-10-31 Avery Adhesive Products Inc Adhesive products
US3293683A (en) * 1965-01-04 1966-12-27 Union Oil Company Of Callforni Paper towel
SE309154B (en) * 1965-08-24 1969-03-10 Mo Och Domsjoe Ab

Also Published As

Publication number Publication date
US3677460A (en) 1972-07-18

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