US3723020A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for transferring highly viscous material
Assignee: Individual
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Filing: 1971-03-17
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Granted: 1973-03-27
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Expires: 1991-03-17
Abstract
Abstract Transfer of highly viscous material can be effected easily by the use of a simple-structured transferring apparatus comprising: a tubular casing having a closed top, a feed introduction port of an inverted funnel shape formed integrally at the bottom of said casing and a delivery outlet formed through the upper side wall of said casing; a rotatable shaft extending through said casing beyond both ends thereof; at least one raking vane fixed to said shaft at a position slightly beyond the end edge of said port and having a curved and twisted face; a helical guide vane fixed to said shaft in said funnel-shaped port at a position close to and above said raking vane; and a continuous helical feed vane provided on said shaft and joining said guide vane and extending along the shaft in said casing up to a position close to said closed top.
Inventors
- 👤 M Watanabe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:06
CPC Classifications
B; B01; B01F; B01F27/00; B01F27/21; B01F27/2123; B01F27/80; B01F27/90; B01F35/00; B01F35/75; B01F35/753; B01F35/754; B01F35/75455; B01F35/754551; F; F04; F04D; F04D3/00; F04D3/02; F04D7/00; F04D7/02; F04D7/04; F04D7/045; B01F23/00; B01F23/40; B01F23/47; B01F27/05; B01F27/11; B01F27/112; B01F27/1125
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
212 words
An apparatus for transferring a highly viscous material from a container, comprising: an open top container for the viscous material, a tubular casing capable of extending vertically of said container and having a closed top, a feed introduction port of an inverted funnel shape providing the bottom portion of said casing and a delivery outlet formed through the side wall of said casing adjacent said top; a driven rotatably shaft extending longitudinally of and through said casing with the upper portion of said shaft rotatably extending through said closed top and the lower end of said shaft extending externally of said open port; at least one raking vane fixed to the lower end of said shaft at a position extending laterally of said container and adjacent to, but externally of said port and laterally of said casing and having a curved and twisted face for gathering said viscous material toward the base of said raking vane as the latter is rotated; a helical guide vane fixed to said shaft within said casing at a position close to and above said raking vane; and continuous helical feed vanes fixed to said shaft within said casing and joining said guide vane and extending along said shaft to a position close to said closed top.
Claim 2
Independent Claim
212 words
An apparatus for transferring a highly viscous material from a container, comprising: an open top container for the viscous material, a tubular casing capable of extending vertically of said container and having a closed top, a feed introduction port of an inverted funnel shape providing the bottom portion of said casing and a delivery outlet formed through the side wall of said casing adjacent said top; a driven rotatably shaft extending longitudinally of and through said casing with the upper portion of said shaft rotatably extending through said closed top and the lower end of said shaft extending externally of said open port; at least one raking vane fixed to the lower end of said shaft at a position extending laterally of said container and adjacent to, but externally of said port and laterally of said casing and having a curved and twisted face for gathering said viscous material toward the base of said raking vane as the latter is rotated; a helical guide vane fixed to said shaft within said casing at a position close to and above said raking vane; and continuous helical feed vanes fixed to said shaft within said casing and joining said guide vane and extending along said shaft to a position close to said closed top.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-26 | 1976-09-25 | 1977-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-26 | 1980-09-25 | 1981-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-26 | 1984-09-25 | 1985-03-27 | $7700.00 | Window Closed / Lapsed |