US4471028A
Expired / Lapsed
US
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Honeycomb core diaphragm
Assignee: Pioneer Corp
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Filing: 1982-05-13
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Granted: 1984-09-11
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Expires: 2002-05-13
Abstract
Abstract A honeycomb core diaphragm is described, which contains a honeycomb core made from a thin plate of beryllium or beryllium alloy which is produced by a super-rapid cooling method. Since the thin plate of beryllium or its alloy has a high modulus of elasticity and low density and, furthermore, is easily moldable, it can be easily molded to produce a honeycomb core having a high modulus of elasticity and low density.
Inventors
- 👤 Masami Kimura
- 👤 Masayasu Yamaguchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:23
CPC Classifications
H; H04; H04R; H04R7/00; H04R7/02; H04R7/04; H04R7/06; H04R7/10; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/1234; Y10T428/12493; Y10T428/12535; Y10T428/12556; Y10T428/12569; Y10T428/12729; Y10T428/24; Y10T428/24149; Y10T428/24165
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
47 words
A honeycomb core diaphragm, comprising a honeycomb core constructed from a thin plate of beryllium or its alloy having a ρ of 1.75 to 1.85 g/cm 3 and a modulus of elasticity of 2.0×10" to 2.3×10"N/m 2 produced by super-rapid cooling of molten beryllium or beryllium alloy.
Claim 2
Dependent Claim
47 words
A honeycomb core diaphragm, comprising a honeycomb core constructed from a thin plate of beryllium or its alloy having a ρ of 1.75 to 1.85 g/cm 3 and a modulus of elasticity of 2.0×10" to 2.3×10"N/m 2 produced by super-rapid cooling of molten beryllium or beryllium alloy.
Claim 3
Dependent Claim
47 words
A honeycomb core diaphragm, comprising; a honeycomb shaped structure comprising a plurality of shaped beryllium segments having a ρ of 1.75 to 1.85 g/cm 3 and a modulus of elasticity of 2.0×10" to 2.3×10"N/m 2 , said segments being secured to one another in a honeycomb configuration.
Claim 4
Dependent Claim
47 words
A honeycomb core diaphragm, comprising; a honeycomb shaped structure comprising a plurality of shaped beryllium segments having a ρ of 1.75 to 1.85 g/cm 3 and a modulus of elasticity of 2.0×10" to 2.3×10"N/m 2 , said segments being secured to one another in a honeycomb configuration.
Claim 5
Dependent Claim
16 words
A honeycomb core diaphragm as claimed in claim 2, said beryllium segments being adhesively secured together.
Claim 6
Dependent Claim
23 words
A honeycomb core diaphragm as claimed in claim 2, said beryllium segments being produced by rapidly cooling a jetted stream of molten beryllium.
Claim 7
Independent Claim
69 words
A method of producing a beryllium or beryllium alloy structure having a ρ of 1.75 to 1.85 g/cm 3 and a modulus of elasticity of 2.0×10" to 2.3×10"N/m 2 , comprising; heating a quantity of beryllium until molten, jetting said molten beryllium through a nozzle onto at least one rotating roll rotating at high speed, and rapidly cooling said jetted beryllium using said roll, to form a beryllium strip.
Claim 8
Independent Claim
69 words
A method of producing a beryllium or beryllium alloy structure having a ρ of 1.75 to 1.85 g/cm 3 and a modulus of elasticity of 2.0×10" to 2.3×10"N/m 2 , comprising; heating a quantity of beryllium until molten, jetting said molten beryllium through a nozzle onto at least one rotating roll rotating at high speed, and rapidly cooling said jetted beryllium using said roll, to form a beryllium strip.
Claim 9
Dependent Claim
13 words
A method as claimed in claim 5, said beryllium being jetted under pressure.
Claim 10
Dependent Claim
21 words
A method as claimed in claim 5, wherein said molten beryllium is jetted into an area between two adjacent rotating rolls.
Claim 11
Independent Claim
92 words
A method of producing a beryllium or beryllium alloy honeycomb structure having a ρ of 1.75 to 1.85 g/cm 3 and a modulus of elasticity of 2.0×10" to 2.3×10"N/m 2 for a honeycomb core diaphragm, comprising; heating a quantity of beryllium until molten, and jetting said molten beryllium under pressure through a nozzle onto at least one rotating roll, super-rapidly cooling said beryllium using said roll, to form a sheet like material, forming said sheet into a waveform structure, and securing a plurality of said structures together to form a honeycomb configuration.
Claim 12
Independent Claim
92 words
A method of producing a beryllium or beryllium alloy honeycomb structure having a ρ of 1.75 to 1.85 g/cm 3 and a modulus of elasticity of 2.0×10" to 2.3×10"N/m 2 for a honeycomb core diaphragm, comprising; heating a quantity of beryllium until molten, and jetting said molten beryllium under pressure through a nozzle onto at least one rotating roll, super-rapidly cooling said beryllium using said roll, to form a sheet like material, forming said sheet into a waveform structure, and securing a plurality of said structures together to form a honeycomb configuration.
Claim 13
Dependent Claim
15 words
A method as claimed in claim 8, said structure being secured together by an adhesive.
Claim 14
Dependent Claim
18 words
A method as claimed in claim 8, said waveform structure being formed by cold press molding said sheets.
Claim 15
Dependent Claim
22 words
A method as claimed in claim 8, wherein said molten beryllium is jetted into a space between a pair of rotating rolls.
Claim 16
Dependent Claim
59 words
A honeycomb core diaphragm, comprising; a plurality of corrugated beryllium or beryllium alloy strips having a ρ of 1.75 to 1.85 g/cm 3 and a modulus of elasticity of 2.0×10" to 2.3×10"N/m 2 secured to one another to form a honeycomb configuration, said strips being formed by rapidly cooling molten beryllium in strip form, and pressing to form corrugations.
Claim 17
Dependent Claim
59 words
A honeycomb core diaphragm, comprising; a plurality of corrugated beryllium or beryllium alloy strips having a ρ of 1.75 to 1.85 g/cm 3 and a modulus of elasticity of 2.0×10" to 2.3×10"N/m 2 secured to one another to form a honeycomb configuration, said strips being formed by rapidly cooling molten beryllium in strip form, and pressing to form corrugations.
Claim 18
Dependent Claim
27 words
A method as claimed in claim 8, said honeycomb configuration being sandwiched between thin sheets of beryllium formed by rapidly cooling a jetted width of molten beryllium.
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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) | 1987-09-11 | 1988-03-12 | 1988-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-09-11 | 1992-03-12 | 1992-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-09-11 | 1996-03-12 | 1996-09-11 | $7700.00 | Window Closed / Lapsed |