US3680446A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for web edge alignment
Assignee: Hayssen Manufacturing Co
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Filing: 1970-04-09
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Granted: 1972-08-01
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Expires: 1990-04-09
Abstract
Abstract A packaging machine having a former and a web edge aligning system for aligning a web such as a plastic film which is to be formed into containers, is disclosed, A shiftable web guide roller has adjustable cylinders mounted at its opposite ends for independently adjusting the ends of the roller so as to move the web as it passes over the roller. Fluid sensors are mounted on each side of the web after it passes over the roller and detect when the web edges are properly aligned. If the web is misaligned, the sensors control valves to operate the cylinders so that the film is again centered and aligned.
Inventors
- 👤 Robert C James
- 👤 Walter H Vogel
- 👤 Richard D Sorenson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:07
CPC Classifications
B; B65; B65B; B65B51/00; B65B51/10; B65B51/26; B65B51/30; B65B41/00; B65B41/12; B65B41/16; B65B9/00; B65B9/10; B65B9/20; B65B9/2014; B65H; B65H23/00; B65H23/02; B65H23/032; B65H23/038; B65H2801/00; B65H2801/69
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
In a packaging machine for forming bags: a former having a forming shoulder for forming a web of material into tubular form; a guide roller over which the web passes mounted on the upstream side of the former for controlling movement of the web onto the forming shoulder; sensing means mounted adjacent said web and sensing its position; means for adjusting the guide roller connected to said sensing means to move said web relative to the sensing means and for training the web onto the forming shoulder in a controlled manner; and comprising a first cylinder mounted on said machine, a first piston mounted in said cylinder and one end of the guide roller rotatably supported by the first piston.
Claim 2
Dependent Claim
120 words
In a packaging machine for forming bags: a former having a forming shoulder for forming a web of material into tubular form; a guide roller over which the web passes mounted on the upstream side of the former for controlling movement of the web onto the forming shoulder; sensing means mounted adjacent said web and sensing its position; means for adjusting the guide roller connected to said sensing means to move said web relative to the sensing means and for training the web onto the forming shoulder in a controlled manner; and comprising a first cylinder mounted on said machine, a first piston mounted in said cylinder and one end of the guide roller rotatably supported by the first piston.
References Cited (Backward Citations)
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US3380637A
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US3482491A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-01 | 1976-01-31 | 1976-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-01 | 1980-01-31 | 1980-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-01 | 1984-01-31 | 1984-08-01 | $7700.00 | Window Closed / Lapsed |