Patent US3604380A successfully refreshed from Google Patents.
US3604380A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Double-end detector for can end curler
Assignee: JANETTA CORP
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Filing: 1969-08-07
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Granted: 1971-09-14
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Expires: 1989-08-07
Abstract
Abstract A device for attachment to a curler for can ends for detecting the delivery of two telescoped can ends from a press to the curler. A limit switch controlling the circuit to the motor means driving the curler and the press is operatively associated with a cam located in the path of the cAn ends as they are delivered to the curler from the press. The limit switch and cam are so adjusted that when two telescoped can ends contact the cam the switch will be opened stopping operation of the press and the curler.
Inventors
- 👤 Paul F Schmeltzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:07
CPC Classifications
B; B21; B21D; B21D51/00; B21D51/16; B21D51/26; B21D51/30; B21D51/32
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
202 words
In combination with a curler for curling the flanges of peripherally flanged can ends, said curler including a main table, an outer stationary curling ring fixed upon said main table, an outer stationary curling ring fixed upon said main table, an inner rotatable curling ring concentric with the outer curling ring, a support ring concentric with and located between the inner and outer curling rings for supporting can ends as they are carried around the curler between said curling rings, an electric motor for rotating said inner curling ring and an electric circuit in which said motor is located, a double-end detector, means supporting the detector above the support ring, said means comprising an elongated base connected at its outer end to a mounting block fixed upon the peripheral portion of the main table, the detector being mounted upon the inner end of said base, the detector comprising a limit switch located in said electric circuit, a spring-biased cam lever having one end normally holding the switch in closed position, the other end of the cam lever being located in the path of the can ends and adapted to be raised by a double end passing there under to open said switch.
Claim 2
Dependent Claim
202 words
In combination with a curler for curling the flanges of peripherally flanged can ends, said curler including a main table, an outer stationary curling ring fixed upon said main table, an outer stationary curling ring fixed upon said main table, an inner rotatable curling ring concentric with the outer curling ring, a support ring concentric with and located between the inner and outer curling rings for supporting can ends as they are carried around the curler between said curling rings, an electric motor for rotating said inner curling ring and an electric circuit in which said motor is located, a double-end detector, means supporting the detector above the support ring, said means comprising an elongated base connected at its outer end to a mounting block fixed upon the peripheral portion of the main table, the detector being mounted upon the inner end of said base, the detector comprising a limit switch located in said electric circuit, a spring-biased cam lever having one end normally holding the switch in closed position, the other end of the cam lever being located in the path of the can ends and adapted to be raised by a double end passing there under to open said switch.
Claim 3
Dependent Claim
29 words
In a combination as defined in claim 1, the limit switch being vertically adjustably mounted upon a vertical mounting plate connected to the inner end portion of the base.
Claim 4
Dependent Claim
69 words
In a combination as defined in claim 2, the limit switch being connected to the vertical mounting plate by screws located through apertures in the mounting plate, said apertures being of larger diameter than said screws, and an adjusting screw threaded into the upper edge portion of the mounting plate, a portion of the head of said adjusting screw being received in a notch in the limit switch housing.
Claim 5
Dependent Claim
155 words
In combination with a press for forming flanged can ends, a curler for curling the flanges of the can ends, said curler including a main table, a stationary curling ring fixed upon said table and a rotatable curling ring, motor means for operating the press and the rotatable curling ring, an electrical circuit in which the motor means is located, a double end detector comprising a limit switch located in said electrical circuit, a spring-biased cam lever having one end normally holding the switch in closed position and the other end located in the paTh of the can ends and adapted to be raised by a double end passing thereunder to open said switch, and means supporting the double-end detector, said means comprising an elongated base connected at its outer end to a mounting block fixed upon the peripheral portion of the main table, the detector being mounted upon the inner end of said base.
Claim 6
Dependent Claim
155 words
In combination with a press for forming flanged can ends, a curler for curling the flanges of the can ends, said curler including a main table, a stationary curling ring fixed upon said table and a rotatable curling ring, motor means for operating the press and the rotatable curling ring, an electrical circuit in which the motor means is located, a double end detector comprising a limit switch located in said electrical circuit, a spring-biased cam lever having one end normally holding the switch in closed position and the other end located in the paTh of the can ends and adapted to be raised by a double end passing thereunder to open said switch, and means supporting the double-end detector, said means comprising an elongated base connected at its outer end to a mounting block fixed upon the peripheral portion of the main table, the detector being mounted upon the inner end of said base.
Claim 7
Dependent Claim
29 words
In a combination as defined in claim 4, the limit switch being vertically adjustably mounted upon a vertical mounting plate connected to the inner end portion of the base.
Claim 8
Dependent Claim
69 words
In a combination as defined in claim 5, the limit switch being connected to the vertical mounting plate by screws located through apertures in the mounting plate, said apertures being of larger diameter than said screws and an adjusting screw threaded into the upper edge portion of the mounting plate, a portion of the head of said adjusting screw being received in a notch in the limit switch housing.
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) | 1974-09-13 | 1975-03-15 | 1975-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-13 | 1979-03-15 | 1979-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-13 | 1983-03-15 | 1983-09-14 | $7700.00 | Window Closed / Lapsed |