Patent US3905238A successfully refreshed from Google Patents.
US3905238A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic metal sampler
Assignee: Individual
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Filing: 1973-06-07
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Granted: 1975-09-16
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Expires: 1993-06-07
Abstract
Abstract A molten metal sampler includes pressure reducing apparatus for pneumatically filling a sample mold in which the pressure reducing apparatus is detachably coupled to a paperboard tube carrying the sample mold by a tapered plug which detachably and sealingly interfits in the open end of the paperboard tube carrying the sample cartridge.
Inventors
- 👤 Richard A Falk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:06
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/02; G01N1/10; G01N1/14; G01N1/1409; Y; Y10; Y10S; Y10S73/00; Y10S73/09
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
188 words
A molten metal sampler comprising wall means defining a sample mold having a mold cavity and an air vent, wall means defining a housing, said sample mold including a fill tube, securing means for securing said sample mold in the interior of said housing in a fixed position with said fill tube projecting from said housing during use and permitting ready separation of said mold from said housing to retrieve said sample, said securing means further providing an air seal between said housing and said mold cavity forwardly of the mold cavity, pressure reducing means for reducing the pressure in said sample mold, and coupling means for detachably coupling said pressure reducing means to said housing to provide for rapid assembly and disassembly of said housing from said pressure reducing means and further provide an air seal between said pressure reducing means and said housing to afford evacuation of said housing and said sample mold by activation of said pressure reducing means, and including a length of deoxidant fixed to said wall means defining a sample cavity, said deoxidant extending through said sample cavity and said fill tube.
Claim 2
Dependent Claim
188 words
A molten metal sampler comprising wall means defining a sample mold having a mold cavity and an air vent, wall means defining a housing, said sample mold including a fill tube, securing means for securing said sample mold in the interior of said housing in a fixed position with said fill tube projecting from said housing during use and permitting ready separation of said mold from said housing to retrieve said sample, said securing means further providing an air seal between said housing and said mold cavity forwardly of the mold cavity, pressure reducing means for reducing the pressure in said sample mold, and coupling means for detachably coupling said pressure reducing means to said housing to provide for rapid assembly and disassembly of said housing from said pressure reducing means and further provide an air seal between said pressure reducing means and said housing to afford evacuation of said housing and said sample mold by activation of said pressure reducing means, and including a length of deoxidant fixed to said wall means defining a sample cavity, said deoxidant extending through said sample cavity and said fill tube.
Claim 3
Dependent Claim
78 words
A molten metal sampler comprising wall means defining a mold cavity shaped to mold an annular disc, an aperture in said wall means, a pin sample tube extending through said aperture and having an inlet in communication with said mold cavity, a coil of deoxidant arranged around said mold cavity in a circular path in contact with the annular walls of said mold cavity and held in contact with the walls by the spring tension of the coil.
Claim 4
Dependent Claim
78 words
A molten metal sampler comprising wall means defining a mold cavity shaped to mold an annular disc, an aperture in said wall means, a pin sample tube extending through said aperture and having an inlet in communication with said mold cavity, a coil of deoxidant arranged around said mold cavity in a circular path in contact with the annular walls of said mold cavity and held in contact with the walls by the spring tension of the coil.
Claim 5
Dependent Claim
192 words
A molten metal sampler comprising wall means defining a sample mold having a mold cavity and an air vent, wall means defining a housing, said sample mold including a fill tube, securing means for securing said sample mold in the interior of said housing in a fixed position with said fill tube projecting from said housing during use and permitting ready separation of said mold from said housing to retrieve said sample, said securing means further providing an air seal between said housing and said mold cavity forwardly of the mold cavity, pressure reducing means for reducing the pressure in said sample mold, and coupling means for detachably coupling said pressure reducing means to said housing to provide for rapid assembly and disassembly of said housing from said pressure reducing means and further provide an air seal between said pressure reducing means and said housing to afford evacuation of said housing and said sample mold by activation of said pressuRe reducing means, and including an aperture in said wall means defining said sample mold, a pin sample tube extending through said aperture and having an open end communicating with said mold cavity.
Claim 6
Dependent Claim
192 words
A molten metal sampler comprising wall means defining a sample mold having a mold cavity and an air vent, wall means defining a housing, said sample mold including a fill tube, securing means for securing said sample mold in the interior of said housing in a fixed position with said fill tube projecting from said housing during use and permitting ready separation of said mold from said housing to retrieve said sample, said securing means further providing an air seal between said housing and said mold cavity forwardly of the mold cavity, pressure reducing means for reducing the pressure in said sample mold, and coupling means for detachably coupling said pressure reducing means to said housing to provide for rapid assembly and disassembly of said housing from said pressure reducing means and further provide an air seal between said pressure reducing means and said housing to afford evacuation of said housing and said sample mold by activation of said pressuRe reducing means, and including an aperture in said wall means defining said sample mold, a pin sample tube extending through said aperture and having an open end communicating with said mold cavity.
Claim 7
Dependent Claim
213 words
A molten metal sampler comprising wall means defining a sample mold having a mold cavity and an air vent, wall means defining a housing, said sample mold including a fill tube, securing means for securing said sample mold in the interior of said housing in a fixed position with said fill tube projecting from said housing during use and permitting ready separation of said mold from said housing to retrieve said sample, said securing means further providing an air seal between said housing and said mold cavity forwardly of the mold cavity, pressure reducing means for reducing the pressure in said sample mold, and coupling means for detachably coupling said pressure reducing means to said housing to provide for rapid assembly and disassembly of said housing from said pressure reducing means and further provide an air seal between said pressure reducing means and said housing to afford evacuation of said housing and said sample mold by activation of said pressure reducing means, and wherein said wall means defining a sample mold comprises a cylindrical wall located within said wall means defining a housing, upper and lower discs forming end walls for said sample mold and apertures in said disc for affording communication with said pressure reducing means and a source of molten metal.
Claim 8
Dependent Claim
213 words
A molten metal sampler comprising wall means defining a sample mold having a mold cavity and an air vent, wall means defining a housing, said sample mold including a fill tube, securing means for securing said sample mold in the interior of said housing in a fixed position with said fill tube projecting from said housing during use and permitting ready separation of said mold from said housing to retrieve said sample, said securing means further providing an air seal between said housing and said mold cavity forwardly of the mold cavity, pressure reducing means for reducing the pressure in said sample mold, and coupling means for detachably coupling said pressure reducing means to said housing to provide for rapid assembly and disassembly of said housing from said pressure reducing means and further provide an air seal between said pressure reducing means and said housing to afford evacuation of said housing and said sample mold by activation of said pressure reducing means, and wherein said wall means defining a sample mold comprises a cylindrical wall located within said wall means defining a housing, upper and lower discs forming end walls for said sample mold and apertures in said disc for affording communication with said pressure reducing means and a source of molten metal.
Claim 9
Dependent Claim
34 words
A sampler in accordance with claim 4 including a pin sample tube including a pin sample tube extending through an aperture in one of said discs and said tube having a free open end.
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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) | 1978-09-15 | 1979-03-17 | 1979-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-15 | 1983-03-17 | 1983-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-15 | 1987-03-17 | 1987-09-16 | $7700.00 | Window Closed / Lapsed |