Patent US4433023A successfully refreshed from Google Patents.
US4433023A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Panel for elevator
Assignee: Mitsubishi Electric Corp
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Filing: 1983-05-11
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Granted: 1984-02-21
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Expires: 2003-05-11
Abstract
Abstract A panel for an elevator used as a car or a door of said elevator comprises a flat front plate; a reinforcing substrate having a waved form which is placed to face one surface of said front plate, wherein central corresponding parts of said reinforcing substrate are bonded to said front plate with a curable binder and peripheral corresponding parts of said reinforcing substrate are fixed through an elastic material to said front plate.
Inventors
- 👤 Kazutoshi Ohta
- 👤 Kunio Sakakibara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:54
CPC Classifications
B; B66; B66B; B66B11/00; B66B11/02; B66B11/0226; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24628; Y10T428/24669; Y10T428/24694; Y10T428/24777; Y10T428/24793; Y10T428/24802; Y10T428/24826; Y10T428/24942; Y10T428/24983
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
100 words
A vibrationally damped reinforced structural panel comprising: a flat front plate having a first surface; a corrugated reinforcing substrate, the corrugations of said substrate defining at least three aligned second surfaces, said substrate being positioned adjacent said front plate such that said second surfaces face said first surface; a rigid cured binder bonding only central ones of said second surfaces to said first surface; and an elastic material bonding only peripheral ones of said surfaces to said first surface, whereby said cured binder provides a fixed bonding between said front plate and substrate while said elastic material provides vibration damping.
Claim 2
Dependent Claim
100 words
A vibrationally damped reinforced structural panel comprising: a flat front plate having a first surface; a corrugated reinforcing substrate, the corrugations of said substrate defining at least three aligned second surfaces, said substrate being positioned adjacent said front plate such that said second surfaces face said first surface; a rigid cured binder bonding only central ones of said second surfaces to said first surface; and an elastic material bonding only peripheral ones of said surfaces to said first surface, whereby said cured binder provides a fixed bonding between said front plate and substrate while said elastic material provides vibration damping.
Claim 3
Dependent Claim
17 words
The panel for an elevator according to claim 1 wherein said elastic material is a soft binder.
Claim 4
Dependent Claim
18 words
The panel for an elevator according to claim 2 wherein said soft binder is a rubber type binder.
Claim 5
Dependent Claim
22 words
The panel for an elevator according to claim 1 or 2 wherein said cured binder is a modified acrylate type curable binder.
Claim 6
Dependent Claim
35 words
The panel for an elevator according to claim 1 or 2 wherein the peripheral part of said front plate has a bent part and said reinforcing substrate faces the bent part of said front plate.
References Cited (Backward Citations)
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Cited
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US3674625A
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US4308308A
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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) | 1987-02-20 | 1987-08-22 | 1988-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-02-20 | 1991-08-22 | 1992-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-02-20 | 1995-08-22 | 1996-02-21 | $7700.00 | Window Closed / Lapsed |