Patent US3704865A successfully refreshed from Google Patents.
US3704865A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plant for applying solidifying plastic masses
Assignee: USESOJUZNY NAUCHNO-ISSLEDOVATELSKY INST PO STROITELSTVU MAGISTRALNYKH TRUBOPROVODOV OKRUZHNOI PROEZD
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Filing: 1970-01-05
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Granted: 1972-12-05
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Expires: 1990-01-05
Abstract
Abstract A plant for applying solidifying plastic masses, which is essentially a tank having a pipeline to connect the upper and lower portions of the tank with a view to providing a continuous circulation of the mass inside the tank.
Inventors
- 👤 Gennady Grigorievic Kharitonov
- 👤 Anatoly Mitrofanvoich Nebytov
- 👤 Sergei Mikhailovich Doroshin
- 👤 Mariana Sergeevna Alimova
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:15
CPC Classifications
E; E04; E04F; E04F21/00; E04F21/02; E04F21/06; E04F21/08; B; B01; B01F; B01F25/00; B01F25/50; B01F25/52
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
131 words
Apparatus for applying solidifying plastic material comprising a tank having a top and a conical bottom, a pipeline communicating with said conical bottom, means for moving said material through said pipeline, said pipeline comprising a linear length of pipe including head means incorporated therewithin for applying said plastic material, and a feedback portion connected between said head means and said top of said tank for returning a portion of said solidifying plastic material to said tank and forming a continuous circulation system for said solidifying plastic material, said head means being constituted by an aperture in said pipe through which said plastic material can be discharged and a locking needle extending transversely in said pipe for adjustably closing said aperture for controlling the amount of said plastic material which is discharged.
Claim 2
Dependent Claim
131 words
Apparatus for applying solidifying plastic material comprising a tank having a top and a conical bottom, a pipeline communicating with said conical bottom, means for moving said material through said pipeline, said pipeline comprising a linear length of pipe including head means incorporated therewithin for applying said plastic material, and a feedback portion connected between said head means and said top of said tank for returning a portion of said solidifying plastic material to said tank and forming a continuous circulation system for said solidifying plastic material, said head means being constituted by an aperture in said pipe through which said plastic material can be discharged and a locking needle extending transversely in said pipe for adjustably closing said aperture for controlling the amount of said plastic material which is discharged.
Claim 3
Dependent Claim
55 words
Apparatus as claimed in claim 1, wherein said head means further comprises a washer means having a central opening, said locking needle being movable within said central opening to selectively close the same, and means for replacing said washer means to provide a different sized central opening to control the amount of plastic material applied.
Claim 4
Dependent Claim
26 words
Apparatus as claimed in claim 2, comprising a spring wound around said locking needle and urging the same into said central opening to close said opening.
Claim 5
Dependent Claim
45 words
Apparatus as claimed in claim 3, comprising a screw clamp located in the feedback portion between said head means and said top of said tank, said screw clamp being adjustable to control the amount of plastic material recirculated and the amount of plastic material applied.
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) | 1975-12-05 | 1976-06-05 | 1976-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-05 | 1980-06-05 | 1980-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-05 | 1984-06-05 | 1984-12-05 | $7700.00 | Window Closed / Lapsed |