Patent US3889438A successfully refreshed from Google Patents.
US3889438A
Expired / Lapsed
US
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Lattice construction
Assignee: Reactor Centrum Nederland
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Filing: 1972-03-27
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Granted: 1975-06-17
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Expires: 1992-03-27
Abstract
Abstract Lattice, especially for supporting sideways a bunch of nuclear fuel rods, constructed according to the egg - crate principle, in which fixing lips of alternating different lengths are stamped and bend out of the bands and cross - bands from which the lattice is composed, and are spotwelded to these bands.
Inventors
- 👤 Gijsbrecht Gerhardus Piepers
- 👤 Christiaan Gustaaf Ad Scholtus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:46
CPC Classifications
G; G21; G21C; G21C3/00; G21C3/30; G21C3/32; G21C3/34; G21C3/356; G21C3/3566; E; E04; E04C; E04C2/00; E04C2/30; E04C2/42; E04C2/421; Y; Y02; Y02E; Y02E30/00; Y02E30/30; Y10; Y10T; Y10T403/00; Y10T403/70; Y10T403/7001
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
151 words
A lattice, specially adapted to support a bunch of elongated components participating in a heat-exchange process, wherein said lattice comprises comb-like strips which form compartments surrounded by intersecting strips, said strips having comb-like incisions adapted to engage said strips in an intersecting manner, wherein the edges of said strips are provided on both sides with fixing lips which are bent into the plane of the lattice and are also stamped out of the edge of the strip, wherein at each incision of each strip of the lattice there is a first lip on the same edge as the incision and a second lip on the edge opposite said incision, and at each intersection of the strips said second lip of one strip extends through the incision of a second intersecting strip and is secured to said intersecting strip on the side opposite the position at which said first lip is secured.
Claim 2
Dependent Claim
151 words
A lattice, specially adapted to support a bunch of elongated components participating in a heat-exchange process, wherein said lattice comprises comb-like strips which form compartments surrounded by intersecting strips, said strips having comb-like incisions adapted to engage said strips in an intersecting manner, wherein the edges of said strips are provided on both sides with fixing lips which are bent into the plane of the lattice and are also stamped out of the edge of the strip, wherein at each incision of each strip of the lattice there is a first lip on the same edge as the incision and a second lip on the edge opposite said incision, and at each intersection of the strips said second lip of one strip extends through the incision of a second intersecting strip and is secured to said intersecting strip on the side opposite the position at which said first lip is secured.
Claim 3
Dependent Claim
26 words
A lattice according to claim 1, in which the fixing of a lip to an intersecting strip is effected by means of the spot welding process.
Claim 4
Dependent Claim
25 words
A lattice according to calim 1, in which the lips of a comb-like strip at oppositely situated edges are also bent outwards in opposite directions.
Claim 5
Dependent Claim
25 words
A lattice according to calim 1, in which the lips of a comb-like strip at oppositely situated edges are also bent outwards in opposite directions.
Claim 6
Dependent Claim
25 words
a lattice according to claim 3, in which oppositely situated lips are bent outwards into planes directly adjacent to the walls of a comb-like incision.
Claim 7
Dependent Claim
27 words
A lattice according to claim 4, in which the lips at one edge of a comb-like strip are longer than the lips situated at the other edge.
Claim 8
Dependent Claim
176 words
A lattice constructed of a set of parallel elongated first strips residing in a given plane and a set of parallel elongated second strips also residing in said plane, said sets of first and second strips intersecting and engaging at a plurality of complementary spaced-apart incisions each of which extends from one edge of each strip toward the opposite edge of the respective strip, whereby said sets of strips form compartments, each edge portion of each strip having a lip stamped out of the material of the strip at the intersection points so as to extend parallel to the respective intersecting strip, wherein at each incision of each strip of the lattice there is a first lip on the same edge as the incision and a second lip on the edge opposite said incision, and at each intersection of the strips said second lip of one strip extends through the incision of a second intersecting strip and is secured to said intersecting strip on the side opposite the position at which said first lip is secured.
Claim 9
Dependent Claim
176 words
A lattice constructed of a set of parallel elongated first strips residing in a given plane and a set of parallel elongated second strips also residing in said plane, said sets of first and second strips intersecting and engaging at a plurality of complementary spaced-apart incisions each of which extends from one edge of each strip toward the opposite edge of the respective strip, whereby said sets of strips form compartments, each edge portion of each strip having a lip stamped out of the material of the strip at the intersection points so as to extend parallel to the respective intersecting strip, wherein at each incision of each strip of the lattice there is a first lip on the same edge as the incision and a second lip on the edge opposite said incision, and at each intersection of the strips said second lip of one strip extends through the incision of a second intersecting strip and is secured to said intersecting strip on the side opposite the position at which said first lip is secured.
Claim 10
Dependent Claim
21 words
A lattice as in claim 6 wherein the lips on opposite edge portions of a given strip extend in opposite directions.
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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) | 1978-06-16 | 1978-12-16 | 1979-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-16 | 1982-12-16 | 1983-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-16 | 1986-12-16 | 1987-06-17 | $7700.00 | Window Closed / Lapsed |