Patent US4707887A successfully refreshed from Google Patents.
US4707887A
Expired / Lapsed
US
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Apparatus for detecting foreign bodies, such as pieces of metal or the like, in textile fiber bales
Assignee: Truetzschler GmbH and Co KG
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Filing: 1985-10-03
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Granted: 1987-11-24
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Expires: 2005-10-03
Abstract
Abstract Apparatus for detecting a foreign body in a textile fiber bale. A search device is provided for detecting a foreign body in a textile fiber bale and a mechanism is provided for varying the location of the search device and of the fiber bale relative to one another.
Inventors
- 👤 Ferdinand Leifeld
- 👤 Paul Teichmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:45
CPC Classifications
D; D01; D01G; D01G31/00; D01G31/003; D01B; D01B3/00; D01B3/02; D01B3/025; G; G01; G01N; G01N23/00; G01N23/02; G01N23/06; G01N23/083; G01N23/18
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
129 words
In a bale opener arranged for a back-and-forth travel along a series of stationarily supported fiber bales, including a detaching means supported above the fiber bales for progressively removing fiber tufts from upper bale faces during travel ofthe bale opener; the improvement comprising search means for detecting foreign bodies in the fiber bales during operation of the bale opener; said search means being mounted on said bale opener for travel therewith; said search means being situated upstream of the detaching means as viewed in the direction of movement of said bale opener and being oriented to scan the stationary fiber bale being worked on by the bale opener for detecting foreign bodies at locations within the fiber bale prior to an arrival of said detaching means in said locations.
Claim 2
Dependent Claim
129 words
In a bale opener arranged for a back-and-forth travel along a series of stationarily supported fiber bales, including a detaching means supported above the fiber bales for progressively removing fiber tufts from upper bale faces during travel ofthe bale opener; the improvement comprising search means for detecting foreign bodies in the fiber bales during operation of the bale opener; said search means being mounted on said bale opener for travel therewith; said search means being situated upstream of the detaching means as viewed in the direction of movement of said bale opener and being oriented to scan the stationary fiber bale being worked on by the bale opener for detecting foreign bodies at locations within the fiber bale prior to an arrival of said detaching means in said locations.
Claim 3
Dependent Claim
49 words
A bale opener as defined in claim 1, further comprising a motor for driving said detaching means; and braking means for stopping the motor; said search means being connected to said braking means for stopping operation of said detaching means upon detecting a foreign body by said search means.
Claim 4
Dependent Claim
16 words
Apparatus as defined in claim 1, wherein said search means includes means for processing electromagnetic radiation.
Claim 5
Dependent Claim
29 words
Apparatus as defined in claim 1, wherein said search means is an active device and includes means for processing radiation which can completely or partially penetrate a fiber bale.
Claim 6
Dependent Claim
18 words
Apparatus as defined in claim 1, wherein said search means includes a transmitting unit and a receiving unit.
Claim 7
Dependent Claim
22 words
Apparatus as defined in claim 5, wherein said transmitting unit is an X-ray transmitter and said receiving unit is an X-ray receiver.
Claim 8
Dependent Claim
22 words
Apparatus as defined in claim 5, wherein said transmitting unit is a radar transmitter and said receiving unit is a radar antenna.
Claim 9
Dependent Claim
22 words
Apparatus as defined in claim 5, wherein said transmitting unit is a sound generator and said receiving unit is a sound receiver.
Claim 10
Dependent Claim
23 words
Apparatus as defined in claim 5, including an evaluation means connected to said receiver unit for evaluating signals produced by said receiver unit.
Claim 11
Dependent Claim
14 words
Apparatus as defined in claim 9, including a monitor connected to said evaluation unit.
Claim 12
Dependent Claim
14 words
Apparatus as defined in claim 1, wherein said search means is a passive device.
Claim 13
Dependent Claim
14 words
Apparatus as defined in claim 11, wherein said search means is an inductive coil.
Claim 14
Dependent Claim
13 words
Apparatus as defined in claim 11, wherein said search means comprises capacitive elements.
Claim 15
Dependent Claim
41 words
Apparatus as defined of claim 1 including signalling means coupled for receiving an output signal from said search means and for producing a signal indicating the presence of a foreign body in response to the output signal from said search means.
Claim 16
Dependent Claim
14 words
Apparatus as defined in claim 14, wherein said signalling means produces an optical signal.
Claim 17
Dependent Claim
39 words
Apparatus as defined in claim 1, wherein said search means comprises a plurality of search devices and mounting means for mounting said plurality of search devices, said mounting means being arranged for contacting the surface of a fiber bale.
Claim 18
Dependent Claim
28 words
Apparatus as defined in claim 16, wherein said mounting means comprises a slide rod which is arranged for making sliding contact with the surface of a fiber bale.
Claim 19
Dependent Claim
28 words
Apparatus as defined in claim 17, wherein said mounting means comprises a contact roller which is arranged for making rolling contact with the surface of a fiber bale.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-11-23 | 1991-05-25 | 1991-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-11-23 | 1995-05-25 | 1995-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-11-23 | 1999-05-25 | 1999-11-24 | $7700.00 | Window Closed / Lapsed |