US4454973A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Perforation burst cone device
Assignee: Pitney Bowes Inc
•
Filing: 1982-11-26
•
Granted: 1984-06-19
•
Expires: 2002-11-26
Abstract
Abstract A bursting apparatus for separating sheets in a continuous intermittently perforated form web is disclosed. The apparatus includes a feed roller, a burst roller and a bursting device, said bursting device disposed between said feed roller and said burst roller and comprising two horizontally positioned cone sections wherein their base portions are adjacent to each other and are encircled at least in part by a bursting ring, said bursting ring having a portion extending beyond said cone base portions in at least a portion of its outer periphery.
Inventors
- 👤 Robert Irvine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:11
CPC Classifications
B; B41; B41J; B41J11/00; B41J11/66; B41J11/70; B65; B65H; B65H35/00; B65H35/10; Y; Y10; Y10T; Y10T225/00; Y10T225/10; Y10T225/16; Y10T225/30; Y10T225/35
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
86 words
A bursting apparatus for separating sheets in a continuous intermittently perforated form web comprising: feed roller means, burst roller means and a bursting device, said bursting device disposed between said feed roller means and said burst roller means and comprising two horizontally positioned cone sections wherein their base portions are adjacent to each other and are encircled at least in part by a bursting ring, said bursting ring has a portion extending beyond said cone base portions in at least a portion of its outer periphery.
Claim 2
Dependent Claim
86 words
A bursting apparatus for separating sheets in a continuous intermittently perforated form web comprising: feed roller means, burst roller means and a bursting device, said bursting device disposed between said feed roller means and said burst roller means and comprising two horizontally positioned cone sections wherein their base portions are adjacent to each other and are encircled at least in part by a bursting ring, said bursting ring has a portion extending beyond said cone base portions in at least a portion of its outer periphery.
Claim 3
Dependent Claim
24 words
The apparatus of claim 1 wherein said burst roller is traveling at a speed in excess of the linear speed of said feed rollers.
Claim 4
Dependent Claim
32 words
The apparatus of claim 1 wherein said apparatus is programmed to provide that said perforations are directly above said burst ring as the lead edge of said form reaches said burst roller.
Claim 5
Dependent Claim
17 words
The apparatus of claim 1 wherein said bursting ring is positioned between and around said base portions.
Claim 6
Dependent Claim
29 words
The apparatus of claim 1 wherein said bursting ring is a concentric ring configuration encircling and extending at least in part beyond the outer periphery of said base portions.
Claim 7
Dependent Claim
27 words
The apparatus of claim 1 wherein said bursting ring is of a circular configuration wherein it extends equidistantly beyond the total outer periphery of said base portions.
Claim 8
Dependent Claim
26 words
The apparatus of claim 1 wherein said bursting ring is of an eliptical configuration wherein it extends irregularly beyond the outer periphery of said base portions.
Claim 9
Dependent Claim
28 words
The apparatus of claim 1 wherein said bursting device is positioned on a plane in the form web travel path slightly higher than the plane of said rollers.
Claim 10
Dependent Claim
21 words
The apparatus of claim 1 wherein said bursting rollers have a speed about twice the linear speed of said feed rollers.
References Cited (Backward Citations)
US2375542A
Cited
GB731595A
Cited
US3146927A
Cited
US3135446A
Cited
US3672551A
Cited
US4261497A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-06-19 | 1987-12-19 | 1988-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-06-19 | 1991-12-19 | 1992-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-06-19 | 1995-12-19 | 1996-06-19 | $7700.00 | Window Closed / Lapsed |