Patent US3693859A successfully refreshed from Google Patents.
US3693859A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Web slack box having a rotatable web accumulator
Assignee: Eastman Kodak Co
•
Filing: 1971-08-04
•
Granted: 1972-09-26
•
Expires: 1991-08-04
Abstract
Abstract A slack box having a rotatable web accumulator comprising a hub and radially extending partitions mounted for rotation in a vertical plane. The hub and partitions cooperate with side walls or discs to form quandrantal compartments for receiving a web in succession upon rotation of the hub by a hub drive mechanism. A web feeding mechanism gravity feeds the web in random looped fashion successively into each of the compartments as the hub is rotated, and the web feeding rate and hub speed rotation are selected such that each compartment is substantially filled with coils and loops of the web before it is fed into the next adjacent compartment. The web is successively withdrawn from the filled compartments and preferably fed continuously into a web processing device or the like. A sensing mechanism senses the amount of web or the web-filled condition of each of the compartments as it is moved past the sensing mechanism, and in response to a web-filled condition that is higher or greater than a predetermined web-filled condition, stops or disables the hub drive and web-feeding mechanisms for discontinuing web feed into the web accumulator. When sufficient web has been withdrawn from the web-filled compartment so that its web-filled condition is lower or less than the predetermined web-filled condition, the sensing mechanism enables or actuates the web feeding and hub drive mechanisms for feeding web into the rotating web accumulator.
Inventors
- 👤 Leroy C Nielsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:59
CPC Classifications
G; G03; G03D; G03D3/00; G03D3/08; G03D3/13; G03D3/135; G03D3/137; G03B; G03B21/00; G03B21/14; G03B21/32; G03B21/321; G03B21/323
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
139 words
In a slack box for accumulating a web, the combination comprising: web accumulating means having a plurality of adjacent compartments; means for feeding a web into one of said compartments; means for moving said compartments in succession past and in timed relation to said web-feeding means for filling each of said compartments to a predetermined web-filled condition; and means coupled to said web-accumulating means and said webfeeding means for sensing the web-filled condition of each of said compartments in succession, and in response to the sensing disabling said web-feeding means and said web-accumulating moving means when the web-filled conDition of said sensed compartment is substantially equal to or greater than said predetermined web-filled condition, and enabling said webfeeding means and said web-accumulating moving means when the web-filled condition of said sensed compartment is less than said predetermined web-filled condition.
Claim 2
Dependent Claim
139 words
In a slack box for accumulating a web, the combination comprising: web accumulating means having a plurality of adjacent compartments; means for feeding a web into one of said compartments; means for moving said compartments in succession past and in timed relation to said web-feeding means for filling each of said compartments to a predetermined web-filled condition; and means coupled to said web-accumulating means and said webfeeding means for sensing the web-filled condition of each of said compartments in succession, and in response to the sensing disabling said web-feeding means and said web-accumulating moving means when the web-filled conDition of said sensed compartment is substantially equal to or greater than said predetermined web-filled condition, and enabling said webfeeding means and said web-accumulating moving means when the web-filled condition of said sensed compartment is less than said predetermined web-filled condition.
Claim 3
Dependent Claim
20 words
The invention according to claim 1 wherein said compartments are rotatable, and said moving means imparts rotation to said compartments.
Claim 4
Dependent Claim
31 words
The invention according to claim 1 wherein said web-accumulating means comprises a rotatable member having a plurality of radially extending, angularly spaced partitions cooperating therewith to form a plurality of compartments.
Claim 5
Dependent Claim
43 words
The invention according to claim 1 wherein said web-accumulating means comprises a rotatable member having circular spaced discs, and a plurality of radially extending, angularly spaced partitions between said discs cooperating with said member and said discs to form a plurality of compartments.
Claim 6
Dependent Claim
52 words
The invention according to claim 1 wherein said web-accumulating means comprises a rotatable member having circular spaced discs, and a plurality of radially extending, angularly spaced partitions between said discs cooperating with said member and said discs to form a plurality of compartments, and web-retaining means encircling the periphery of said discs.
Claim 7
Dependent Claim
49 words
The invention according to claim 5 wherein said web-retaining means is provided with a web inlet and a web outlet, and comprises an arcuate plate encircling a portion of the periphery of said discs, and a plurality of adjacent rollers encircling the remainder of the periphery of said discs.
Claim 8
Dependent Claim
50 words
The invention according to claim 1 wherein said sensing means comprises an electrical switch having an actuator arm extending into a compartment and responsive to the web pressure therein for movement from a normally closed position to an open position for disabling said web-feeding means and said compartment moving means.
Claim 9
Dependent Claim
77 words
The invention according to claim 1 wherein said sensing means comprises an electrical switch movable between open and closed positions and in circuit with said web-feeding means and said compartment moving means, said switch having an actuator arm extending into a compartment and responsive to the web pressure for movement between a normally closed position enabling said web-feeding means and said compartment moving means and an open position disabling said web-feeding means and said compartment moving means.
Claim 10
Dependent Claim
148 words
In a slack box for accumulating a web, the combination comprising: web-accumulating means having a plurality of adjacent compartments; means for feeding a web into one of said compartments; means for moving said compartments in timed relation to said web-feeding means for filling each of said compartments in succession; switch means responsive to the web pressure in one of said web-filled compartments for movement from a normal closed position for enabling said web-feeding means and said compartment moving means, to an open position for disabling said web-feeding means and said compartment moving means; and means for withdrawing the web from said one web-filled compartment until the web pressure in said one web-filled compartment is reduced causing said switch means to be moved to its closed position. 10. The invention according to claim 9 wherein said compartments are rotatable, and said compartment moving means imparts rotation to said compartments.
Claim 11
Dependent Claim
31 words
The invention according to claim 9 wherein said web-accumulating means comprises a rotatable member having a plurality of radially extending, angularly spaced partitions cooperating therewith to form a plurality of compartments.
Claim 12
Dependent Claim
44 words
The invention according to claim 9 wherein said web-accumulating means comprises a rotatable member having circular spaced discs and a plurality of radially extending, angularly spaced partitions between said discs and cooperating with said member and said discs to form a plurality of compartments.
Claim 13
Dependent Claim
53 words
The invention according to claim 9 wherein said web-accumulating means comprises a rotatable member having circular spaced discs and a plurality of radially extending, angularly spaced partitions between said discs and cooperating with said member and said discs to form a plurality of compartments, and web-retaining means encircling the periphery of said discs.
Claim 14
Dependent Claim
49 words
The invention according to claim 13 wherein said web-retaining means is provided with a web inlet and a web outlet, and comprises an arcuate plate encircling a portion of the periphery of said discs, and a plurality of adjacent rollers encircling the remainder of the periphery of said discs.
References Cited (Backward Citations)
AT236896B
Cited
US3209974A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-09-26 | 1976-03-27 | 1976-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-26 | 1980-03-27 | 1980-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-26 | 1984-03-27 | 1984-09-26 | $7700.00 | Window Closed / Lapsed |