Patent US3655035A successfully refreshed from Google Patents.
US3655035A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiplex capsule for dental filling materials
Assignee: ZAHN PORZELL AN KG E MUHLBAUER
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Filing: 1969-10-29
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Granted: 1972-04-11
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Expires: 1989-10-29
Abstract
Abstract A capsular container for storing separate components which are mixed together prior to use in the field of dentistry having a container body closed by a threaded cap-like telescoped capsule closure member which forms a separate chamber with a perforated wall of the container body for receiving a frangible foil bag having a second liquid component adapted to be broken by pressing the closure member against the container body so as to cause the liquid component to flow through the perforated wall and mix with the first component in the container body.
Inventors
- 👤 Ernst A Muhlbauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:38
CPC Classifications
A; A61; A61C; A61C5/00; A61C5/60; A61C5/66
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
328 words
A capsular container for storing separate components or ingredients which are to be mixed upon demand to produce a dental material comprising in combination, a cylindrical container body having a mixing chamber therein containing a first material component and having a wall integral with and extending transversely across one end of said body, said wall having at least one perforation therethrough communicating with one end of said chamber and the other end of said chamber being open, a cupshaped member having a closed end, the interior surface of said closed end being substantially complementary to the outer surface of said wall on said container body to provide cooperating pressure surfaces when said cup-shaped member is mounted over the end of said body having said wall thereon, complementary coengaging threaded means on the inner wall of said cup-shaped member and the exterior wall of said container body adjacent the end having said wall thereon, a bag of frangible material positioned between said cooperating pressure surface and containing a liquid second component adapted to be discharged into said mixing chamber when said cup-shaped member is tightly screwed onto said body in a direction to move said pressure surfaces toward each other to effect rupturing said bag and force the contents thereof through said perforation in said wall across said container body, and a removable closure for said open end of said chamber operable to close said chamber to retain said first material component therein until mixing thereof with said liquid second component is to occur and also maintain said chamber closed during mixing of said components, said closure having a telescopic engagement with said open end of said chamber an annular axial flange slidable engaging the inner surface of said open end of said chamber and being readily removable to permit discharge of the mixed dental material through said open end of said chamber without disturbing the opposite end of said body and cup-shaped member in tightly threaded attachment thereto.
Claim 2
Dependent Claim
328 words
A capsular container for storing separate components or ingredients which are to be mixed upon demand to produce a dental material comprising in combination, a cylindrical container body having a mixing chamber therein containing a first material component and having a wall integral with and extending transversely across one end of said body, said wall having at least one perforation therethrough communicating with one end of said chamber and the other end of said chamber being open, a cupshaped member having a closed end, the interior surface of said closed end being substantially complementary to the outer surface of said wall on said container body to provide cooperating pressure surfaces when said cup-shaped member is mounted over the end of said body having said wall thereon, complementary coengaging threaded means on the inner wall of said cup-shaped member and the exterior wall of said container body adjacent the end having said wall thereon, a bag of frangible material positioned between said cooperating pressure surface and containing a liquid second component adapted to be discharged into said mixing chamber when said cup-shaped member is tightly screwed onto said body in a direction to move said pressure surfaces toward each other to effect rupturing said bag and force the contents thereof through said perforation in said wall across said container body, and a removable closure for said open end of said chamber operable to close said chamber to retain said first material component therein until mixing thereof with said liquid second component is to occur and also maintain said chamber closed during mixing of said components, said closure having a telescopic engagement with said open end of said chamber an annular axial flange slidable engaging the inner surface of said open end of said chamber and being readily removable to permit discharge of the mixed dental material through said open end of said chamber without disturbing the opposite end of said body and cup-shaped member in tightly threaded attachment thereto.
References Cited (Backward Citations)
US3415360A
Cited
US3425598A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-04-11 | 1975-10-11 | 1976-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-11 | 1979-10-11 | 1980-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-11 | 1983-10-11 | 1984-04-11 | $7700.00 | Window Closed / Lapsed |