Patent US3999126A successfully refreshed from Google Patents.
US4241146A
Expired / Lapsed
US
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Corrugated plate having variable material thickness and method for making same
Assignee: Individual
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Filing: 1978-11-20
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Granted: 1980-12-23
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Expires: 1998-11-20
Abstract
Abstract A corrugated plate is disclosed which has trapezoidal corrugations defined by alternating, side by side, relatively thick corrugation peaks and corrugation troughs and relatively thin, inclined corrugation sides which interconnect edges of adjoining peaks and troughs. A method is also disclosed for corrugating the corrugated plate from flat sheet by providing a flat sheet with spaced apart, longitudinally extending, relatively thick sections which thereafter define the corrugation peaks and corrugation troughs or for forming the thick sections by providing a relatively thin sheet and folding over portions of the thin sheet in the areas which ultimately form the corrugation peaks and corrugation troughs so that the latter are defined by a plurality of staked sheet layers.
Inventors
- 👤 Eugene W. Sivachenko
- 👤 Firoze H. Broacha
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:59
CPC Classifications
B; B21; B21B; B21B1/00; B21B1/08; B21B1/095; B21D; B21D13/00; B21D13/04; B21D13/045; E; E01; E01D; E01D19/00; E01D19/12; E01D19/125; F; F16; F16S; F16S1/00; F16S1/04; F16S1/06; E01D2101/00; E01D2101/30; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12229; Y10T428/12389; Y10T428/24; Y10T428/2419; Y10T428/24215; Y10T428/24264; Y10T428/24479; Y10T428/24628; Y10T428/24669; Y10T428/24694
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
64 words
A corrugated metal plate comprising longitudinally extending, side by side, alternating corrugation peaks and corrugation troughs and corrugation sides extending between and interconnecting the peaks and the troughs, at least portions of the peaks and of the troughs having a material thickness which is greater than a material thickness of the sides, the peaks, troughs and sides being defined by a single, integral sheet.
Claim 2
Dependent Claim
64 words
A corrugated metal plate comprising longitudinally extending, side by side, alternating corrugation peaks and corrugation troughs and corrugation sides extending between and interconnecting the peaks and the troughs, at least portions of the peaks and of the troughs having a material thickness which is greater than a material thickness of the sides, the peaks, troughs and sides being defined by a single, integral sheet.
Claim 3
Dependent Claim
32 words
A corrugated plate according to claim 1 wherein the material thickness of the peaks and the troughs exceeds the material thickness of the sides by a factor of at least about 2.
Claim 4
Dependent Claim
15 words
A corrugated plate according to claim 2 wherein the factor is at least about 3.
Claim 5
Dependent Claim
40 words
A corrugated plate according to claim 1 wherein the peaks and troughs respectively are defined by a plurality of layers of the sheet and including means rigidly securing the sheet layers at the peaks and the troughs to each other.
Claim 6
Dependent Claim
13 words
A corrugated plate according to claim 4 wherein the securing means comprises welds.
Claim 7
Dependent Claim
14 words
A corrugated plate according to claim 4 wherein the securing means comprises a fastener.
Claim 8
Dependent Claim
13 words
A corrugated plate according to claim 6 wherein the fastener comprises a bolt.
Claim 9
Dependent Claim
13 words
A corrugated plate according to claim 6 wherein the fastener comprises a rivet.
Claim 10
Dependent Claim
19 words
A corrugated plate according to claim 4 including at least two sheet layers at the peaks and the troughs.
Claim 11
Dependent Claim
19 words
A corrugated plate according to claim 9 including at least three sheet layers at the peaks and the troughs.
Claim 12
Dependent Claim
23 words
A corrugated plate according to claim 4 wherein the sheet layers have a material thickness equal to the material thickness of the sides.
Claim 13
Dependent Claim
29 words
A corrugated plate according to claim 11 wherein the sheet defines substantially 180° folds between the sheet layers secured to each other and defining the peaks and the troughs.
Claim 14
Dependent Claim
56 words
A corrugated plate according to claim 1 wherein the peaks and the troughs include substantially flat, parallel crown sections having said greater material thickness, and wherein the crown sections have a width measured transversely to the longitudinal extent of the peaks and the troughs which is less than the width of the peaks and the troughs.
Claim 15
Dependent Claim
59 words
A corrugated plate according to claim 13 wherein the corrugation sides are angularly inclined relative to the corrugation peaks and corrugation troughs, and including a curved corrugation segment extending between and interconnecting the corrugation sides with the corrugation crown sections, and wherein the material thickness of the curved segments is less than the material thickness of the crown sections.
Claim 16
Dependent Claim
23 words
A corrugated plate according to claim 14 wherein the material thickness of the curved segments equals the material thickness of the corrugation sides.
Claim 17
Dependent Claim
123 words
A corrugated metal plate made from sheet material comprising: a plurality of side by side parallel corrugations having a generally trapezoidal cross-section and defining longitudinally extending, parallel, alternating corrugation peaks and corrugation troughs interconnected by sloping corrugation sides, the peaks and the troughs each including a substantially flat crown section extending over the full length of the plate and, in a direction transversely thereto, between adjoining corrugation sides, the corrugated plate further including curved corrugation segments extending between lateral edges of the crown sections and the flat corrugation sides, the crown sections having a material thickness substantially greater than a material thickness of the corrugation sides, the crown sections, the corrugation sides, and the corrugation segments being integrally formed from the same sheet.
Claim 18
Dependent Claim
123 words
A corrugated metal plate made from sheet material comprising: a plurality of side by side parallel corrugations having a generally trapezoidal cross-section and defining longitudinally extending, parallel, alternating corrugation peaks and corrugation troughs interconnected by sloping corrugation sides, the peaks and the troughs each including a substantially flat crown section extending over the full length of the plate and, in a direction transversely thereto, between adjoining corrugation sides, the corrugated plate further including curved corrugation segments extending between lateral edges of the crown sections and the flat corrugation sides, the crown sections having a material thickness substantially greater than a material thickness of the corrugation sides, the crown sections, the corrugation sides, and the corrugation segments being integrally formed from the same sheet.
Claim 19
Dependent Claim
28 words
A corrugated plate according to claim 16 wherein at least portions of the curved segments have a material thickness which exceeds the material thickness of the corrugation sides.
Claim 20
Dependent Claim
24 words
A corrugated plate according to claim 16 wherein the curved segments have a material thickness less than the material thickness of the crown sections.
Claim 21
Dependent Claim
24 words
A corrugated plate according to claim 18 wherein the curved segments have a material thickness euqal to the material thickness of the corrugated sides.
Claim 22
Dependent Claim
35 words
A corrugated plate according to claim 16 wherein the crown sections are defined by a plurality of sheet layers constructed integrally with the corrugation sides, adjoining sheet layers being interconnected by a substantially 180° fold.
Claim 23
Dependent Claim
17 words
A corrugated plate according to claim 20 including means rigidly securing adjoining sheet layers to each other.
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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) | 1983-12-23 | 1984-06-23 | 1984-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-23 | 1988-06-23 | 1988-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-23 | 1992-06-23 | 1992-12-23 | $7700.00 | Window Closed / Lapsed |