Patent US3589275A successfully refreshed from Google Patents.
US3589275A
Expired / Lapsed
US
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Package-binding machine with improved gripping means
Assignee: Metaverpa NV
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Filing: 1969-10-22
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Granted: 1971-06-29
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Expires: 1989-10-22
Abstract
Abstract A package-binding machine feeds a loop of binding material about a package and overlaps the ends of the material. A stop limits movement of the free end of the material and causes the stopped material to press against a concave guide surface, thereby closing an air opening which is located in that concave surface. Closing the air opening actuates a fluid cylinder which in turn actuates the gripping mechanism to hold the free end of the material against withdrawal when the loop is tightened about the package.
Inventors
- 👤 Pieter Arnolus Van De Bilt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:58
CPC Classifications
B; B65; B65B; B65B13/00; B65B13/02; B65B13/04; B65B13/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
178 words
In a package-binding machine comprising means for guiding binding material about a looped path, means for supplying binding material to said looped path, and means for holding the free end of the binding material when the latter has reached the end of the looped path; the improvement comprising a dead stop for the free end of the material at the end of said path, a portion of said guide means presenting to the material a concavely curved guide surface, said concavely curved surface having an opening therethrough that is obturated after the free end of the material strikes said dead stop, conduit means for supplying gas under pressure to said opening, and means responsive to an increase in pressure in said conduit means upon obturation of the opening to actuate said holding means said concavely curved surface being spaced from said stop whereby when said free end of the binding material engages said stop said binding material is then caused to press toward and close said opening as said supplying means continues momentarily to feed said binding means.
Claim 2
Dependent Claim
178 words
In a package-binding machine comprising means for guiding binding material about a looped path, means for supplying binding material to said looped path, and means for holding the free end of the binding material when the latter has reached the end of the looped path; the improvement comprising a dead stop for the free end of the material at the end of said path, a portion of said guide means presenting to the material a concavely curved guide surface, said concavely curved surface having an opening therethrough that is obturated after the free end of the material strikes said dead stop, conduit means for supplying gas under pressure to said opening, and means responsive to an increase in pressure in said conduit means upon obturation of the opening to actuate said holding means said concavely curved surface being spaced from said stop whereby when said free end of the binding material engages said stop said binding material is then caused to press toward and close said opening as said supplying means continues momentarily to feed said binding means.
References Cited (Backward Citations)
US3183824A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |