US4464815A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multidirectional orientation apparatus
Assignee: Mobil Oil AS
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Filing: 1982-07-15
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Granted: 1984-08-14
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Expires: 2002-07-15
Abstract
Abstract Apparatus for orienting a mailable film comprising means for pulling the film through at least one pair of multi-directional orientation rollers having helical grooves thereby imparting a random multi-directional orientation to the film.
Inventors
- 👤 Peter J. Canterino
- 👤 Craig E. Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:25
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/06; B29; B29C; B29C55/00; B29C55/02; B29C55/10; B29C55/18
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
74 words
An apparatus for multi-directionally orienting the molecular structure within a malleable film comprising: a. at least one pair of oppositely disposed orientation rollers having angularly threaded helical grooves along the entire length of said rollers, said grooves of each roller having generally arcuate edges being configured to provide continuously alternating orientation directions and positioned to receive the threads of said oppositely disposed roller; b. nips which pull said film through said multi-directional orientation rollers.
Claim 2
Independent Claim
74 words
An apparatus for multi-directionally orienting the molecular structure within a malleable film comprising: a. at least one pair of oppositely disposed orientation rollers having angularly threaded helical grooves along the entire length of said rollers, said grooves of each roller having generally arcuate edges being configured to provide continuously alternating orientation directions and positioned to receive the threads of said oppositely disposed roller; b. nips which pull said film through said multi-directional orientation rollers.
Claim 3
Dependent Claim
14 words
An apparatus as defined in claim 1, wherein said rollers have equal helical angles.
Claim 4
Dependent Claim
32 words
An apparatus as defined in claim 2, wherein said helical angles are oppositely disposed thereby allowing the thread of one roller to be received by the groove of the other said roller.
Claim 5
Dependent Claim
18 words
An apparatus as defined in claim 2, wherein said helical angle is from about 90° to about 0°.
Claim 6
Dependent Claim
13 words
An apparatus as defined in claim 4, wherein said helical angle is 30°.
Claim 7
Dependent Claim
35 words
An apparatus as defined in claim 1 or 2, wherein said rollers have a space between the face of the thread of one roller and the foot of the receiving groove of the other roller.
Claim 8
Dependent Claim
19 words
An apparatus as defined in claim 1, wherein said film consists of any polymer capable of forming a film.
Claim 9
Dependent Claim
19 words
An apparatus as defined in claim 1 or 7, wherein said film comprises a polymer of low density polyethylene.
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) | 1987-08-14 | 1988-02-13 | 1988-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-08-14 | 1992-02-13 | 1992-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-08-14 | 1996-02-13 | 1996-08-14 | $7700.00 | Window Closed / Lapsed |