Patent US3607573A successfully refreshed from Google Patents.
US3607573A
Expired / Lapsed
US
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Sealed edge machine
Assignee: Deering Milliken Research Corp
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Filing: 1969-06-20
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Granted: 1971-09-21
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Expires: 1989-06-20
Abstract
Abstract Apparatus to automatically provide severed sealed edge products to prevent unraveling. The machine is so designed to automatically hold the fabric during formation and to automatically guide the fabric during the advancing stage of the fabric prior to the formation of subsequent sealed edge products.
Inventors
- 👤 Andreas M Michaelides
- 👤 Charles A Wethington
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:51
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/15577; A61F13/15707; A61F13/15739; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1084; Y10T156/12; Y10T156/125; Y10T156/1313; Y10T156/17; Y10T156/1702; Y10T156/1712; Y10T156/1739
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
36 words
The structure of claim 1 wherein said plurality of rolls further includes a fixed roll and a movable roll, said movable roll being biased away from said one roll to maintain tension on the apron system.
Claim 2
Dependent Claim
28 words
The structure of claim 2 wherein said apron system includes a plurality of narrow endless bands with each of said bands having a movable roll operably associated therewith.
Claim 3
Dependent Claim
136 words
Apparatus to provide sealed edge teXtile product comprising: a frame, a first pair of rolls in nip-forming engagement, means supplying a running length of fabric to said first pair of rolls, a second pair of rolls in nip-forming engagement, indexing means mounted on said frame to periodically index fabric between said pairs of rolls, means to heat seal a thermoplastic strip of film to said fabric, means to sever said fabric through said seal and brake means operably associated with said first pair of rolls to brake said first pair of rolls at the end of the indexing stroke to compensate for the inertia of rolls, said indexing means including a means to slow the first pair of rolls near the end of the indexing stroke prior to braking of the rolls by said brake means.
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) | 1974-09-20 | 1975-03-22 | 1975-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-20 | 1979-03-22 | 1979-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-20 | 1983-03-22 | 1983-09-21 | $7700.00 | Window Closed / Lapsed |