US4409784A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of wrapping roll bales with plastic film
Assignee: Blue Leaf IP Inc
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Filing: 1982-01-21
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Granted: 1983-10-18
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Expires: 2002-01-21
Abstract
Abstract A method used to wrap roll bales of crop material with plastic film. The method involves holding the end of a supply roll of plastic film between stationary feed rolls as a bale is formed, and then delivering the end of the plastic film to the outer surface of a completed roll bale by driving the feed rolls. The method also involves wrapping the roll bale with a suitable number of layers of the plastic film by driving the feed rolls while rotating the roll bale, and then severing the plastic film at a location between the roll bale and the feed rolls by stopping the feed rolls and moving a cutoff bar into contact with the plastic film while continuing to rotate the roll bale.
Inventors
- 👤 Robert M. VanGinhoven
- 👤 Shaun A. Seymour
- 👤 Harry C. Eberly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:28
CPC Classifications
A; A01; A01F; A01F15/00; A01F15/07; A01F15/071; A01F15/0715; Y; Y10; Y10S; Y10S56/00; Y10S56/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
166 words
A method of wrapping a roll bale of crop material with plastic film comprising the steps of: (a) holding the end of a supply roll of plastic film between feed rolls during formation of a roll bale; (b) delivering the end of the supply roll of plastic film to the outer surface of a completed roll bale by operating a control means to energize an electric clutch in order to drive the feed rolls; (c) wrapping at least one full layer of the plastic film around the roll bale by driving the feed rolls while rotating the roll bale; and (d) severing the plastic film at a location between the roll bale and the feed rolls by operating the control means to deenergize the electric clutch in order to stop the feed rolls and to simultaneously deenergize a solenoid in order to permit a cutoff bar to be moved to a severing position into contact with the plastic film while continuing to rotate the roll bale.
Claim 2
Independent Claim
166 words
A method of wrapping a roll bale of crop material with plastic film comprising the steps of: (a) holding the end of a supply roll of plastic film between feed rolls during formation of a roll bale; (b) delivering the end of the supply roll of plastic film to the outer surface of a completed roll bale by operating a control means to energize an electric clutch in order to drive the feed rolls; (c) wrapping at least one full layer of the plastic film around the roll bale by driving the feed rolls while rotating the roll bale; and (d) severing the plastic film at a location between the roll bale and the feed rolls by operating the control means to deenergize the electric clutch in order to stop the feed rolls and to simultaneously deenergize a solenoid in order to permit a cutoff bar to be moved to a severing position into contact with the plastic film while continuing to rotate the roll bale.
References Cited (Backward Citations)
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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) | 1986-10-17 | 1987-04-18 | 1987-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-10-17 | 1991-04-18 | 1991-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-10-17 | 1995-04-18 | 1995-10-18 | $7700.00 | Window Closed / Lapsed |