US3585624A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Feeler-controlled stop motion device
Assignee: Framo Morat GmbH and Co KG
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Filing: 1969-11-18
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Granted: 1971-06-15
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Expires: 1989-11-18
Abstract
Abstract A thyristor circuit is assembled in a small tubular casing which is mounted on a knitting machine. A feeler projects from the casing and contacts an improperly placed latch of a needle to produce a current pulse firing the thyristor so that the same energizes the relay for stopping the motor of the knitting machine.
Inventors
- 👤 Gernot Gottschall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:54
CPC Classifications
D; D04; D04B; D04B35/00; D04B35/10; D04B35/18
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
234 words
Feeler-controlled stop motion device comprising, in combination, a hollow substantially cylindrical insulating casing; a circuit plate including an insulating plate diametrically positioned in the interior of said casing at one end of the same, and conductor means secured to said insulating plate; a thyristor and resistor means mounted in said casing between the same and said circuit plate and being connected by said conductor means; a signal lamp fitted into the other end of said casing and having a first terminal adjacent the inner end of said circuit plate and connected with said conductor means, and a second terminal; a contact pin passing through a wall of said casing and having an inner end in contact with said second terminal, and an outer end adapted to be connected with a voltage source; a contact ring surrounding said casing connected with said conductor means, and adapted to be engaged by a metal part of a machine supporting said casing; and a conductive feeler means secured to said one end of said casing projecting from the same and being connected with said conductor means, said conductor means connecting said thyristor, said resistor means, said lamp, said contact ring, and said fEeler means so that said thyristor is fired and generates a current for stopping the machine and for illuminating said lamp when said feeler means engages an improperly placed other moving metal part of the machine.
Claim 2
Dependent Claim
234 words
Feeler-controlled stop motion device comprising, in combination, a hollow substantially cylindrical insulating casing; a circuit plate including an insulating plate diametrically positioned in the interior of said casing at one end of the same, and conductor means secured to said insulating plate; a thyristor and resistor means mounted in said casing between the same and said circuit plate and being connected by said conductor means; a signal lamp fitted into the other end of said casing and having a first terminal adjacent the inner end of said circuit plate and connected with said conductor means, and a second terminal; a contact pin passing through a wall of said casing and having an inner end in contact with said second terminal, and an outer end adapted to be connected with a voltage source; a contact ring surrounding said casing connected with said conductor means, and adapted to be engaged by a metal part of a machine supporting said casing; and a conductive feeler means secured to said one end of said casing projecting from the same and being connected with said conductor means, said conductor means connecting said thyristor, said resistor means, said lamp, said contact ring, and said fEeler means so that said thyristor is fired and generates a current for stopping the machine and for illuminating said lamp when said feeler means engages an improperly placed other moving metal part of the machine.
Claim 3
Dependent Claim
85 words
Feeler-controlled stop motion device as claimed in claim 1 wherein said conductor means connect the cathode and anode of said thyristor in series with said terminals of said lamp; wherein said resistor means include a first resistor and a second resistor having connected ends; wherein said conductor means connect the connected ends of said first and second resistors with the gate of said thyristor, and the other ends of said first and second resistors with said feeler means and said cathode of said thyristor, respectively.
Claim 4
Dependent Claim
33 words
Feeler-controlled stop motion device as claimed in claim 2 comprising a capacitor mounted between said casing and said circuit plate; and wherein said conductor means connect said capacitor in parallel with said thyristor.
Claim 5
Dependent Claim
66 words
Feeler-controlled stop motion device as claimed in claim 3 wherein one of said resistors and said capacitor are located on one side of said circuit plate, and the other resistor and said thyristor are located on the other side of said circuit plate; and wherein said conductor means include conductors secured to a surface of said insulating plate, and other conductors passing through said insulating plate.
Claim 6
Dependent Claim
35 words
Feeler-controlled stop motion device as claimed in claim 1 wherein said insulating casing consists of a molded epoxy resin in which said contact ring, said insulating plate, and said terminals of said lamp are embedded.
Claim 7
Dependent Claim
62 words
Feeler-controlled stop motion device as claimed in claim 1 wherein said feeler means includes a screw threaded into the end wall of said casing at said one end of the same and in contact with said conductor means, and a partly coiled conductive feeler mounted on said screw and being resiliently deflected when engaging the improperly placed moving part of the machine.
Claim 8
Dependent Claim
26 words
Feeler-controlled stop motion device as claimed in claim 1 including a supporting pin transversely projecting from said casing and having one end embedded in the same.
Claim 9
Dependent Claim
44 words
Feeler-controlled stop motion device as claimed in claim 1 in combination with a relay connected with said thyristor energized and operated by said current and including a relay contact for disconnecting the motor driving the machine when said relay is energized by said pulse.
Claim 10
Dependent Claim
31 words
Feeler-controlled stop motion device as claimed in claim 1 in combination with a source of voltage having one terminal connected with said contact pin, and the other terminal connected to ground.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-14 | 1974-12-14 | 1975-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-14 | 1978-12-14 | 1979-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-14 | 1982-12-14 | 1983-06-15 | $7700.00 | Window Closed / Lapsed |