Patent US4596730A successfully refreshed from Google Patents.
US4596730A
Expired / Lapsed
US
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Self-supporting composite plates for double floors, ceilings and the like
Assignee: MERO-WERKE DR ING MAX MENGERINGHAUSEN & Co A CORP OF GERMANY GmbH
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Filing: 1984-12-17
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Granted: 1986-06-24
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Expires: 2004-12-17
Abstract
Abstract A self-supporting composite plate for double floors, ceilings or the like, with a pan-shaped outside wrapper member and a hardenable mineral filler, e.g., anhydrite, which can be introduced in liquid state into the pan-shaped wrapper member, and in which are embedded lightweight construction materials. The construction materials are substantially spherical bodies that are retained in a predetermined distribution essentially in the area of the statically neutral zone of the composite plate by a latticed holder that is provided within the wrapper member.
Inventors
- 👤 Ulrich Klingelhofer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:27
CPC Classifications
E; E04; E04F; E04F15/00; E04F15/02; E04F15/024; E04F15/02405; E04F15/02417; E04F15/02423; E04F15/02429; B; B32; B32B; B32B13/00; B32B13/04; Y; Y10; Y10T; Y10T428/00; Y10T428/23; Y10T428/234; Y10T428/236; Y10T428/24; Y10T428/24149; Y10T428/24157
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
151 words
A self-supporting composite plate for double floors, ceilings or the like, with a pan-shaped outside wrapper member and a hardenable mineral filler, e.g., anhydrite, which can be introduced in liquid state into the pan-shaped wrapper member, and in which are embedded lightweight bouyant construction materials, characterized in that the lightweight construction materials are substantially spherical bodies (15) found essentially in the area of the statically neutral zone (16) of composite plate (10), and a latticed holder (17) is provided within the wrapper member for positioning the construction bodies (15) in a predetermined distribution in the liquid mineral filler (14) in the pan-shaped wrapper member, whereby said spherical bodies are forced to float in the statically neutral zone (16) in engagement with the undersurface of said holder, said holder having apertures therethrough that are of a size smaller than said spherical bodies (15) and to allow the mineral filler to flow therethrough.
Claim 2
Dependent Claim
151 words
A self-supporting composite plate for double floors, ceilings or the like, with a pan-shaped outside wrapper member and a hardenable mineral filler, e.g., anhydrite, which can be introduced in liquid state into the pan-shaped wrapper member, and in which are embedded lightweight bouyant construction materials, characterized in that the lightweight construction materials are substantially spherical bodies (15) found essentially in the area of the statically neutral zone (16) of composite plate (10), and a latticed holder (17) is provided within the wrapper member for positioning the construction bodies (15) in a predetermined distribution in the liquid mineral filler (14) in the pan-shaped wrapper member, whereby said spherical bodies are forced to float in the statically neutral zone (16) in engagement with the undersurface of said holder, said holder having apertures therethrough that are of a size smaller than said spherical bodies (15) and to allow the mineral filler to flow therethrough.
Claim 3
Dependent Claim
28 words
Composite plate as in claim 1, characterized in that the holder (17) is supported at its edges by spacers (19) above the floor of pan-shaped wrapper member (12).
Claim 4
Dependent Claim
21 words
Composite plate as in claim 1, characterized in that the holder (17) is formed of substantially flat rods of light metal.
Claim 5
Dependent Claim
18 words
Composite plate as in claim 1, characterized in that the holder (17) is formed of a mineral material.
Claim 6
Dependent Claim
20 words
Composite plate as in claim 1, characterized in that the holder (17) is formed of nonflammable pasteboard arranged on edge.
Claim 7
Dependent Claim
34 words
Composite plate as in claim 1, characterized in that the latticed holder (17) is of such height that its top terminates substantially flush with that of the mineral filler (14) of composite plate (10).
Claim 8
Dependent Claim
18 words
Composite plate as in claim 1, characterized in that said construction bodies (15) are formed of expanded clay.
Claim 9
Dependent Claim
27 words
Composite plate as in claim 1, characterized in that the latticed holder has a frame to which a perforated flexible gauze is fastened in a stretched-out state.
Claim 10
Dependent Claim
16 words
Composite plate as in claim 1, characterized in that the latticed holder comprises an apertured plate.
Claim 11
Dependent Claim
18 words
Composite plate as in claim 1, characterized in that said construction bodies (15) are formed of pumice grit.
References Cited (Backward Citations)
US3106503A
Cited
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Cited
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Cited
US4076880A
Cited
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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) | 1989-06-23 | 1989-12-23 | 1990-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-06-23 | 1993-12-23 | 1994-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-06-23 | 1997-12-23 | 1998-06-24 | $7700.00 | Window Closed / Lapsed |