US4684433A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slitter tape applicator
Assignee: Kempsmith Machine Co
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Filing: 1985-04-03
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Granted: 1987-08-04
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Expires: 2005-04-03
Abstract
Abstract An apparatus for applying tape to a moving press board web including a base for carrying a press board web, a slitter mounted on the base for cutting the web into three strips, a tape applicator for applying a strip of tape to the center strip, the tape being wide enough to overlap the edges of the adjacent strips, a second slitter for cutting the center strip in half and a die for cutting the strips into predetermined lengths.
Inventors
- 👤 Robert A. Gohr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:54
CPC Classifications
B; B42; B42F; B42F3/00; B42F3/003; B42F3/006; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1062; Y10T156/1067; Y10T156/1084; Y10T156/1087; Y10T156/12; Y10T156/1317; Y10T156/1322
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
249 words
An apparatus for forming file folder covers of the reinforced tape hinged type and the tape reinforced edge type said apparatus comprising a base, a guide roll assembly mounted on said base for guiding a pressboard web onto said base, a slitter assembly mounted on said base for cutting a pair of slots in said web to define a reinforcing strip for a hinge reinforced file folder cover, a first set of drive rolls for driving the web across the base, a tape applicator assembly mounted on said base for selectively feeding different tapes onto said web, said assembly including a tape roll support assembly, a first set of idler rolls for guiding a hinge tape onto said web, a glue applicator assembly for applying glue to said first tape prior to application to said web, a first set of pressure rolls for pressing said hinge tape into the slots in said web, a second set of idler rolls for guiding an edge reinforcement tape onto said web, a tape heater assembly for activating the adhesive on said reinforcement tape prior to application to said web, means for varying the heating time of said heater, a second set of pressure rolls for pressing said heat activated tape against said web, a die for cutting said web into predetermined lengths, a second pair of drive rolls for moving said web into said die, and a second slitter assembly for cutting said predetermined lengths of pressboard into front and back covers.
Claim 2
Independent Claim
249 words
An apparatus for forming file folder covers of the reinforced tape hinged type and the tape reinforced edge type said apparatus comprising a base, a guide roll assembly mounted on said base for guiding a pressboard web onto said base, a slitter assembly mounted on said base for cutting a pair of slots in said web to define a reinforcing strip for a hinge reinforced file folder cover, a first set of drive rolls for driving the web across the base, a tape applicator assembly mounted on said base for selectively feeding different tapes onto said web, said assembly including a tape roll support assembly, a first set of idler rolls for guiding a hinge tape onto said web, a glue applicator assembly for applying glue to said first tape prior to application to said web, a first set of pressure rolls for pressing said hinge tape into the slots in said web, a second set of idler rolls for guiding an edge reinforcement tape onto said web, a tape heater assembly for activating the adhesive on said reinforcement tape prior to application to said web, means for varying the heating time of said heater, a second set of pressure rolls for pressing said heat activated tape against said web, a die for cutting said web into predetermined lengths, a second pair of drive rolls for moving said web into said die, and a second slitter assembly for cutting said predetermined lengths of pressboard into front and back covers.
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) | 1990-08-03 | 1991-02-02 | 1991-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-08-03 | 1995-02-02 | 1995-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-08-03 | 1999-02-02 | 1999-08-04 | $7700.00 | Window Closed / Lapsed |