GB1356288A - Envelope opening apparatus and method - Google Patents
Envelope opening apparatus and methodInfo
- Publication number
- GB1356288A GB1356288A GB3313671A GB3313671A GB1356288A GB 1356288 A GB1356288 A GB 1356288A GB 3313671 A GB3313671 A GB 3313671A GB 3313671 A GB3313671 A GB 3313671A GB 1356288 A GB1356288 A GB 1356288A
- Authority
- GB
- United Kingdom
- Prior art keywords
- envelope
- edge
- envelopes
- conveyer
- edges
- 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
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
Landscapes
- Making Paper Articles (AREA)
Abstract
1356288 Facilitating severance of envelopes KENCO CORP 14 July 1971 [21 Sept 1970] 33136/71 Heading B4B [Also in Division F4] In an arrangement for opening envelopes, one or more edges of the envelope are weakened in turn by subjecting an unsupported edge of the envelope to radiant heat. The edge 36 of an envelope 33, Fig. 2, carried by belts 12, 13 passes through a channel 31 heated by elements 34, 35. The envelope edge may be heated by radiation focused on it by reflectors 41, Fig. 3, or a lens (Fig. 4, not shown). A radiant element may be mounted within a channel aligned with the edge of the envelope, or a laser beam may be focused on to the edge of the envelope. Envelopes after being charred along three edges are opened by the action of a roller contacting the upper surface on an envelope flat on the conveyer, the roller running at a different speed from the conveyer.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US074060A US3875722A (en) | 1969-04-16 | 1970-09-21 | Envelope opening mechanism and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1356288A true GB1356288A (en) | 1974-06-12 |
Family
ID=22117460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3313671A Expired GB1356288A (en) | 1970-09-21 | 1971-07-14 | Envelope opening apparatus and method |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE2146795A1 (en) |
| FR (1) | FR2108308A5 (en) |
| GB (1) | GB1356288A (en) |
-
1971
- 1971-07-14 GB GB3313671A patent/GB1356288A/en not_active Expired
- 1971-09-18 DE DE19712146795 patent/DE2146795A1/en active Pending
- 1971-09-20 FR FR7133775A patent/FR2108308A5/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2146795A1 (en) | 1972-05-25 |
| FR2108308A5 (en) | 1972-05-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |