DE3171450D1 - Method and apparatus for opening envelopes - Google Patents

Method and apparatus for opening envelopes

Info

Publication number: DE3171450D1
Authority: DE; Germany
Prior art keywords: opening envelopes; envelopes; opening
Prior art date: 1980-03-31
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

DE8181102331T

Other languages

German (de)

Inventor

James B Ellis

Mieczyslaw J Lisiecki

Raymond E Sims

Joseph Savit

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.)

Aes Technology Systems Inc

Original Assignee

Aes Technology Systems Inc

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.)

1980-03-31

Filing date

1981-03-27

Publication date

1985-08-29

1980-03-31 Priority claimed from US06/135,356 external-priority patent/US4356684A/en

1980-03-31 Priority claimed from US06/135,353 external-priority patent/US4356679A/en

1980-03-31 Priority claimed from US06/135,326 external-priority patent/US4356683A/en

1981-03-27 Application filed by Aes Technology Systems Inc filed Critical Aes Technology Systems Inc

1985-08-29 Application granted granted Critical

1985-08-29 Publication of DE3171450D1 publication Critical patent/DE3171450D1/en

Status 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
- B43M7/02—Devices for both opening envelopes and removing contents

DE8181102331T 1980-03-31 1981-03-27 Method and apparatus for opening envelopes Expired DE3171450D1 (en)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
US06/135,356 US4356684A (en)	1980-03-31	1980-03-31	Batch method and apparatus for heating envelope edges to separate the envelope panels
US06/135,353 US4356679A (en)	1980-03-31	1980-03-31	Apparatus for applying a degrading chemical to envelopes
US06/135,326 US4356683A (en)	1980-03-31	1980-03-31	Method and apparatus for holding and conveying a batch of envelopes to facilitate the opening of the envelopes

Publications (1)

Publication Number	Publication Date
DE3171450D1 true DE3171450D1 (en)	1985-08-29

Family

ID=27384694

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DE8181102331T Expired DE3171450D1 (en)	1980-03-31	1981-03-27	Method and apparatus for opening envelopes

Country Status (3)

Country	Link
EP (1)	EP0037100B1 (en)
CA (1)	CA1175719A (en)
DE (1)	DE3171450D1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3902429A (en) *	1972-06-14	1975-09-02	Thor Dahl	Track guided tray used in a mechanism for opening envelopes
US4189341A (en) *	1975-07-28	1980-02-19	Thor Dahl, Inc.	Envelope opening mechanism
US4069011A (en) *	1976-04-27	1978-01-17	Thor Dahl, Inc.	Envelope opening machine

1981
- 1981-03-27 EP EP81102331A patent/EP0037100B1/en not_active Expired
- 1981-03-27 DE DE8181102331T patent/DE3171450D1/en not_active Expired
- 1981-03-30 CA CA000374163A patent/CA1175719A/en not_active Expired

Also Published As

Publication number	Publication date
CA1175719A (en)	1984-10-09
EP0037100B1 (en)	1985-07-24
EP0037100A1 (en)	1981-10-07

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Legal Events

Date	Code	Title	Description
1986-08-28	8364	No opposition during term of opposition
1992-04-09	8339	Ceased/non-payment of the annual fee