US3928125A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water extraction apparatus for papermaking machine
Assignee: Feldmuehle Anlagen und Produktion GmbH
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Filing: 1973-12-13
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Granted: 1975-12-23
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Expires: 1993-12-13
Abstract
Abstract Water extracting apparatus for the Fourdrinier or felt section of a machine for making paper, cardboard, building boards and the like includes a support formed with a plurality of spacedly parallel, outwardly open grooves respectively receiving elongated contact units in conforming engagement. Each contact unit includes an elongated channel member of extruded aluminum alloy or stainless steel, and a plurality of contact sections of sintered aluminum oxide or silicon carbide abuttingly juxtaposed in the direction of unit elongation. The top faces of the sections are located in a common plane and their bottom faces are superimposed on the free edges of the channel flanges to close the channel cavity which is filled with a bonding material.
Inventors
- 👤 Rudolf Poeschl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:28
CPC Classifications
D; D21; D21F; D21F1/00; D21F1/48; D21F1/483; D21F1/52; D21F1/523
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
24 words
SAID SECTIONS BEING ABUTTINGLY JUXTAPOSED IN THE DIRECTION OF ELONGATION OF SAID BODY AND HAVING RESPECTIVE TOP FACES LOCATED IN A COMMON LONGITUDINAL PLANE,
Claim 2
Dependent Claim
24 words
SAID SECTIONS BEING ABUTTINGLY JUXTAPOSED IN THE DIRECTION OF ELONGATION OF SAID BODY AND HAVING RESPECTIVE TOP FACES LOCATED IN A COMMON LONGITUDINAL PLANE,
Claim 3
Dependent Claim
33 words
A CONTACT UNIT FOR A PAPER-MAKING MACHINE AND THE LIKE COMPRISING: A. AN ELONGATED CHANNEL MEMBER HAVING A WEB PART AND TWO FLANGE PARTS EXTENDING FROM SAID WEB PART IN A COMMON DIRECTION;
Claim 4
Dependent Claim
33 words
A CONTACT UNIT FOR A PAPER-MAKING MACHINE AND THE LIKE COMPRISING: A. AN ELONGATED CHANNEL MEMBER HAVING A WEB PART AND TWO FLANGE PARTS EXTENDING FROM SAID WEB PART IN A COMMON DIRECTION;
Claim 5
Dependent Claim
10 words
SAID PARTS JOINTLY BOUNDING A CAVITY OPEN IN SAID DIRECTION,
Claim 6
Dependent Claim
10 words
SAID PARTS JOINTLY BOUNDING A CAVITY OPEN IN SAID DIRECTION,
Claim 7
Dependent Claim
42 words
RESPECTIVE FREE END PORTIONS OF SAID FLANGE PARTS DEFINING THEREBETWEEN THE OPEN SIDE OF SAID CAVITY; B. AN ELONGATED CONTACT BODY CONSTITUTED BY A PLURALITY OF ELONGATED CONTACT SECTIONS OF A MATERIAL HAVING A HARDNESS GREATER THAN 6 ON THE MOHS SCALE,
Claim 8
Dependent Claim
42 words
RESPECTIVE FREE END PORTIONS OF SAID FLANGE PARTS DEFINING THEREBETWEEN THE OPEN SIDE OF SAID CAVITY; B. AN ELONGATED CONTACT BODY CONSTITUTED BY A PLURALITY OF ELONGATED CONTACT SECTIONS OF A MATERIAL HAVING A HARDNESS GREATER THAN 6 ON THE MOHS SCALE,
Claim 9
Dependent Claim
13 words
EACH SECTION HAVING TWO LONGITUDINAL BOTTOM FACE PORTIONS TRANSVERSELY SPACED FROM EACH OTHER,
Claim 10
Dependent Claim
13 words
EACH SECTION HAVING TWO LONGITUDINAL BOTTOM FACE PORTIONS TRANSVERSELY SPACED FROM EACH OTHER,
Claim 11
Dependent Claim
24 words
A unit as set forth in claim 1, wherein said channel member consists of metal, and said bonding material is a synthetic resin composition.
Claim 12
Dependent Claim
13 words
each section having two longitudinal bottom face portions transversely spaced from each other,
Claim 13
Dependent Claim
13 words
each section having two longitudinal bottom face portions transversely spaced from each other,
Claim 14
Dependent Claim
42 words
respective free end portions of said flange parts defining therebetween the open side of said cavity; b. an elongated contact body constituted by a plurality of elongated contact sections of a material having a hardness greater than 6 on the Mohs scale,
Claim 15
Dependent Claim
42 words
respective free end portions of said flange parts defining therebetween the open side of said cavity; b. an elongated contact body constituted by a plurality of elongated contact sections of a material having a hardness greater than 6 on the Mohs scale,
Claim 16
Dependent Claim
22 words
A unit as set forth in claim 2, wherein said channel member is of uniform cross section over the entire length thereof.
Claim 17
Dependent Claim
31 words
EACH BOTTOM FACE PORTION ENGAGING A RESPECTIVE ONE OF SAID FREE END PORTIONS IN DIRECT CONTACT AND PARTLY PROJECTING FROM THE ENGAGED FREE END PORTION TOWARD THE OTHER BOTTOM FACE PORTION,
Claim 18
Dependent Claim
31 words
EACH BOTTOM FACE PORTION ENGAGING A RESPECTIVE ONE OF SAID FREE END PORTIONS IN DIRECT CONTACT AND PARTLY PROJECTING FROM THE ENGAGED FREE END PORTION TOWARD THE OTHER BOTTOM FACE PORTION,
Claim 19
Dependent Claim
31 words
each bottom face portion engaging a respective one of said free end portions in direct contact and partly projecting from the engaged free end portion toward the other bottom face portion,
Claim 20
Dependent Claim
31 words
each bottom face portion engaging a respective one of said free end portions in direct contact and partly projecting from the engaged free end portion toward the other bottom face portion,
Claim 21
Dependent Claim
21 words
A unit as set forth in claim 2, wherein said rib flares in a direction away from said bottom face portions.
Claim 22
Dependent Claim
64 words
THE PROJECTING PART OF EACH BOTTOM FACE PORTION FACING INWARD OF SAID CAVITY; C. A BODY OF BONDING MATERIAL FILLING SAID CAVITY IN CONTACT WITH SAID CHANNEL MEMBER AND SAID PROJECTING PARTS; AND D. A LONGITUDINALLY ELONGATED, INTEGRAL RIB PROJECTING FROM ONE OF SAID BODIES AND SEPARATING SAID BOTTOM FACE PROTIONS, THE OTHER BODY BEING FORMED WITH A LONGITUDINAL GROOVE CONFORMINGLY RECEIVING SAID RIB.
Claim 23
Dependent Claim
64 words
THE PROJECTING PART OF EACH BOTTOM FACE PORTION FACING INWARD OF SAID CAVITY; C. A BODY OF BONDING MATERIAL FILLING SAID CAVITY IN CONTACT WITH SAID CHANNEL MEMBER AND SAID PROJECTING PARTS; AND D. A LONGITUDINALLY ELONGATED, INTEGRAL RIB PROJECTING FROM ONE OF SAID BODIES AND SEPARATING SAID BOTTOM FACE PROTIONS, THE OTHER BODY BEING FORMED WITH A LONGITUDINAL GROOVE CONFORMINGLY RECEIVING SAID RIB.
Claim 24
Dependent Claim
64 words
the projecting part of each bottom face portion facing inward of said cavity; c. a body of bonding material filling said cavity in contact with said channel member and said projecting parts; and d. a longitudinally elongated, integral rib projecting from one of said bodies and separating said bottom face portions, the other body being formed with a longitudinal groove conformingly receiving said rib.
Claim 25
Dependent Claim
64 words
the projecting part of each bottom face portion facing inward of said cavity; c. a body of bonding material filling said cavity in contact with said channel member and said projecting parts; and d. a longitudinally elongated, integral rib projecting from one of said bodies and separating said bottom face portions, the other body being formed with a longitudinal groove conformingly receiving said rib.
Claim 26
Dependent Claim
17 words
A unit as set forth in claim 2, wherein said contact body is formed with said groove.
Claim 27
Dependent Claim
40 words
A unit as set forth in claim 5, further comprising a metallic member embedded in said body of bonding material, respective portions of said member being received in said groove and offset from said contact sections toward said web part.
Claim 28
Dependent Claim
28 words
A unit as set forth in claim 6, wherein said metallic member is plate-shaped, said plate-shaped member being elongated in the direction of elongation of said contact unit.
Claim 29
Dependent Claim
19 words
A unit as set forth in claim 2, wherein said body of bonding material is formed with said groove.
Claim 30
Dependent Claim
44 words
A unit as set forth in claim 2, wherein the surfaces of said bottom face portions engaging said free end portions are sMoother than the surface of another part of each contact section in contact with said body of bonding material in said groove.
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) | 1978-12-22 | 1979-06-23 | 1979-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-22 | 1983-06-23 | 1983-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-22 | 1987-06-23 | 1987-12-23 | $7700.00 | Window Closed / Lapsed |