US3593486A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for inserting materials in envelope blanks
Assignee: FL Smithe Machine Co Inc
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Filing: 1969-12-29
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Granted: 1971-07-20
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Expires: 1989-12-29
Abstract
Abstract Methods of enclosing insert materials in continuously advancing envelope blanks and forming mailing pieces comprising an envelope having insert materials sealed therein wherein the insert materials are enclosed and sealed in an envelope blank during the envelope formation process. An envelope blank having closure flap, body and bottom flap portions is contacted with a rotating cylinder having vacuum and pressure ports. A negative pressure is formed at the vacuum ports for maintaining the envelope blank in overlying contacting relationship with the cylinder. A positive pressure is formed at the pressure ports for urging the bottom flap portion of the blank away from the rotating cylinder to form a fold between the bottom flap and body portions of the envelope blank. Insert materials are injected into the fold thus formed and the bottom flap portion is thereafter folded into overlying contacting relationship with the body portion of the blank to enclose the insert materials therein. The envelope blank has adhesive strips applied thereto as required and is folded and sealed to form an envelope having insert materials sealed therein.
Inventors
- 👤 Herbert W Helm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:37
CPC Classifications
B; B65; B65B; B65B11/00; B65B11/48; B43; B43M; B43M5/00; B43M5/04; B65H; B65H45/00; B65H45/12; B65H45/14; B65H45/142; B65H45/18; B31; B31B; B31B2150/00; B31B2150/001; B31B2160/00; B31B2160/10; B31B2170/00; B31B2170/20; B65H2301/00; B65H2301/40; B65H2301/42; B65H2301/421; B65H2301/4214; B65H2301/42146
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
196 words
A method of enclosing insert materials in a continuously advancing envelope blank having closure flap, body, and bottom flap portions comprising, contacting said blank with a first rotating cylinder having vacuum ports and pressure ports on the surface thereof, forming a negative pressure in said vacuum ports whereby said envelope blank is maintained in overlying contacting relationship with said first cylinder, forming a positive pressure in said pressure ports whereby said bottom flap portion of said blank is urged in a direction generally away from said first cylinder while said remaining portions are maintained in contact therewith to form an open fold in said envelope blank between the bottom flap and body portions thereof, injecting said insert materials into said fold, advancing said folded blank and said insert material between a pair of coacting rollers having a common tangential plane, said pair of coacting rollers formed from said first rotating cylinder and a second rotating cylinder, and receiving and advancing said blank and insert materials between said coacting rollers whereby said bottom flap portion is folded into overlying contacting relationship with said body portion to thereby enclose said insert materials in said continuously advancing envelope blank.
Claim 2
Independent Claim
196 words
A method of enclosing insert materials in a continuously advancing envelope blank having closure flap, body, and bottom flap portions comprising, contacting said blank with a first rotating cylinder having vacuum ports and pressure ports on the surface thereof, forming a negative pressure in said vacuum ports whereby said envelope blank is maintained in overlying contacting relationship with said first cylinder, forming a positive pressure in said pressure ports whereby said bottom flap portion of said blank is urged in a direction generally away from said first cylinder while said remaining portions are maintained in contact therewith to form an open fold in said envelope blank between the bottom flap and body portions thereof, injecting said insert materials into said fold, advancing said folded blank and said insert material between a pair of coacting rollers having a common tangential plane, said pair of coacting rollers formed from said first rotating cylinder and a second rotating cylinder, and receiving and advancing said blank and insert materials between said coacting rollers whereby said bottom flap portion is folded into overlying contacting relationship with said body portion to thereby enclose said insert materials in said continuously advancing envelope blank.
Claim 3
Dependent Claim
47 words
A method of enclosing insert materials in a continuously advancing envelope blank as set forth in claim 1 which includes, forming marginal adhesive strips on said body portion of said envelope blank whereby said insert materials upon being enclosed in said envelope blank are adhesively sealed therein.
Claim 4
Dependent Claim
59 words
A method of enclosing insert materials in a continuously advancing envelope blank as set forth in claim 1 which includes, forming marginal adhesive strips on said side flap portions, and folding said side flap portions upwardly and inwardly into overlying contacting relationship with said bottom flap portion whereby said insert materials are sealed in said continuously advanCing envelope blank.
Claim 5
Dependent Claim
42 words
A method of enclosing insert materials in a continuously advancing envelope blank as set forth in claim 1 which includes, folding said closure flap portion into overlying contacting relationship with said bottom flap portion whereby envelopes having inserts sealed therein are formed.
Claim 6
Dependent Claim
102 words
A method of forming envelopes having inserts sealed therein from a continuously advancing envelope blank having closure flap, body and bottom flap portions as set forth in claim 4 wherein said folding of said closure flap portion includes, advancing said folded envelope blank having said insert material sealed therein between a second pair of coacting rollers, said second pair of coacting rollers formed from said first rotating cylinder and a third rotating cylinder adapted to receive and advance said blank having said insert material sealed thereon whereby said closure flap portion is folded into overlying contacting relationship with said bottom flap portion.
Claim 7
Dependent Claim
94 words
A method of enclosing insert materials in a continuously advancing envelope blank as set forth in claim 1 which includes, forming adhesive strips on said side flap portions of said blank, folding said side flap portions upwardly and inwardly into overlying contacting relationship with said bottom flap portion whereby said insert materials are sealed on said envelope blank, forming a transverse adhesive strip on said closure flap portion of said blank and folding said closure flap portion into overlying contacting relationship with said bottom flap portion whereby envelopes are formed having inserts sealed therein.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-19 | 1975-01-18 | 1975-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-19 | 1979-01-18 | 1979-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-19 | 1983-01-18 | 1983-07-20 | $7700.00 | Window Closed / Lapsed |