US3604374A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite blast-absorbing structure
Assignee: United States Steel Corp
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Filing: 1969-08-18
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Granted: 1971-09-14
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Expires: 1989-08-18
Abstract
Abstract This invention relates to a protective panel for the blast protection of a structure. The protective panel has an impact member, a honeycomb member disposed opposite the impact member, distendible side members defining with the impact member and the honeycomb member a cavity, and a fluid hermetically sealed in the cavity. The honeycomb member is secured to the panel. The impact member is operable when a localized high-intensity force of an explosion contacts the impact member to transmit the localized highintensity force of the explosion to the fluid. The fluid is operable to convert the localized high-intensity force to a uniform low-intensity force on the honeycomb member and the side members. The honeycomb member is subjected to accordion-type crushing, and the sidewalls deflect outwardly in bending and fracturing, thus allowing the impact member to contact and deform the honeycomb member and minimally deform the panel. Alternatively, a second honeycomb member or a multiplicity of honeycomb members is substituted for the cavity.
Inventors
- 👤 Harold E Matson
- 👤 William J Riffe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 04:34
CPC Classifications
F; F41; F41H; F41H5/00; F41H5/02; F41H5/04; F41H5/0442; F41H5/045; F41H7/00; F41H7/02; F41H7/04; F41H7/042; Y; Y10; Y10S; Y10S428/00; Y10S428/911; Y10T; Y10T428/00; Y10T428/24; Y10T428/24149
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
172 words
A protective panel for the blast protection of a panel, said protective having: a. an impact member, b. a honeycomb member disposed opposite said impact member and having a cover member, c. distensible side members defining with said impact member and said cover member a cavity, and d. a fluid hermetically sealed in said cavity, 1. said honeycomb member being secured to said, 2. said impact member being operable when a localized highintensity force of an explosion contacts said impact member to transmit said localized high-intensity force of said explosion to said fluid, 3. said fluid being operable to convert said localized highintensity force to a uniform low-intensity force on said honeycomb member and said side members, 4. said honeycomb member being subjected to accordion-type crushing by the uniform low-intensity force, and 5. said side members permitting the buildup of said uniform low-intensity force on said honeycomb member before deflecting outwardly in bending and fracturing, thus allowing said impact member to contact and deform said honeycomb member and minimally deform said panel.
Claim 2
Dependent Claim
172 words
A protective panel for the blast protection of a panel, said protective having: a. an impact member, b. a honeycomb member disposed opposite said impact member and having a cover member, c. distensible side members defining with said impact member and said cover member a cavity, and d. a fluid hermetically sealed in said cavity, 1. said honeycomb member being secured to said, 2. said impact member being operable when a localized highintensity force of an explosion contacts said impact member to transmit said localized high-intensity force of said explosion to said fluid, 3. said fluid being operable to convert said localized highintensity force to a uniform low-intensity force on said honeycomb member and said side members, 4. said honeycomb member being subjected to accordion-type crushing by the uniform low-intensity force, and 5. said side members permitting the buildup of said uniform low-intensity force on said honeycomb member before deflecting outwardly in bending and fracturing, thus allowing said impact member to contact and deform said honeycomb member and minimally deform said panel.
Claim 3
Dependent Claim
29 words
said impact member being operable when a localized high-intensity force of an explosion contacts said impact member to transmit said localized high-intensity force of said explosion to said fluid,
Claim 4
Dependent Claim
29 words
said impact member being operable when a localized high-intensity force of an explosion contacts said impact member to transmit said localized high-intensity force of said explosion to said fluid,
Claim 5
Dependent Claim
29 words
The protective panel recited in clAim 1 wherein said honeycomb member has a plurality of corrugated core strips, each having a crimping section joined to an adjacent connecting section.
Claim 6
Dependent Claim
25 words
The protective panel recited in claim 2 wherein said crimping section has a crimping tab for connecting said crimping section to said adjacent connecting section.
Claim 7
Dependent Claim
23 words
said fluid being operable to convert said localized high-intensity force to a uniform low-intensity force on said honeycomb member and said side members,
Claim 8
Dependent Claim
23 words
said fluid being operable to convert said localized high-intensity force to a uniform low-intensity force on said honeycomb member and said side members,
Claim 9
Dependent Claim
14 words
said honeycomb member being subjected to accordion-type crushing by the uniform low-intensity force, and
Claim 10
Dependent Claim
14 words
said honeycomb member being subjected to accordion-type crushing by the uniform low-intensity force, and
Claim 11
Dependent Claim
24 words
The protective panel recited in claim 1 wherein said honeycomb member has a bonding section disposed between a crimping section and a connecting section.
Claim 12
Dependent Claim
15 words
The protective panel recited in claim 4 wherein said bonding section has a bonding tab.
Claim 13
Dependent Claim
39 words
said side members permitting the buildup of said uniform low-intensity force on said honeycomb member before deflecting outwardly in bending and fracturing, thus allowing said impact member to contact and deform said honeycomb member and minimally deform said panel.
Claim 14
Dependent Claim
39 words
said side members permitting the buildup of said uniform low-intensity force on said honeycomb member before deflecting outwardly in bending and fracturing, thus allowing said impact member to contact and deform said honeycomb member and minimally deform said panel.
Claim 15
Dependent Claim
20 words
The protective panel recited in claim 1 wherein said honeycomb member has a top face sheet secured to said structure.
Claim 16
Dependent Claim
22 words
The protective panel recited in claim 1 wherein said honeycomb member has a bottom face sheet defining one side of said cavity.
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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) | 1974-09-13 | 1975-03-15 | 1975-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-13 | 1979-03-15 | 1979-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-13 | 1983-03-15 | 1983-09-14 | $7700.00 | Window Closed / Lapsed |