Patent US1659228A successfully refreshed from Google Patents.
Patent US3617412A successfully refreshed from Google Patents.
US3617412A
Expired / Lapsed
US
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Flat curl-free u-sealing adhesive tape applying machine
Assignee: GAF Corp
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Filing: 1967-12-22
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Granted: 1971-11-02
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Expires: 1987-12-22
Abstract
Abstract This invention relates to a tape-applying machine and, in particular, to an improved U-sealer for cuboid objects or cartons. The apparatus or U-sealer includes a tape-applying member and a presser roller adapted to apply pressure-sensitive adhesive tape to a carton conveyed along a linear path. The tapeapplying member is retractably interposed in the travel path of the carton and includes an upstanding end portion of the adhesive tape in an unsupported condition. This physical characteristic is imparted to the tape by cooperative grooving rollers which provide a longitudinal stiffening ridge or groove in the tape prior to application to the carton.
Inventors
- 👤 Dick W Schenderling
- 👤 Dingeman Bijl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:59
CPC Classifications
B; B65; B65B; B65B51/00; B65B51/04; B65B51/06; B65B51/067
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
40 words
A U-sealer as defined in claim 1 wherein said raised ridge portion comprises a raised knife edge extending about the axial center of said roller means, so as to form said groove in said tape at the approximate centerline thereof.
Claim 2
Dependent Claim
45 words
A U-sealer as defined in claim 1 wherein the other of said roller means is interposed between said first roller means and said tape-applying member, said tape being entrained about said other roller means and conveyed by the latter into contact with said tape-applying means.
Claim 3
Dependent Claim
51 words
A U-sealer as defined in claim 3 wherein said other roller means includes a peripherally grooved portion, said grooved portion being in axial alignment with the raised ridge portion of said first roller means, whereby the groove in said tape is adapted to be conveyed in complementary relationship through said groove.
Claim 4
Dependent Claim
33 words
A U-sealer as defined in claim 3 wherein said other roller means includes a generally knurled circumferential surface so as to engage the surface of said tape for conveyance toward said tape-applying member.
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) | 1974-11-01 | 1975-05-03 | 1975-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-01 | 1979-05-03 | 1979-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-01 | 1983-05-03 | 1983-11-02 | $7700.00 | Window Closed / Lapsed |