US3628938A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for manufacturing pipes from glass metal
Assignee: Individual
•
Filing: 1968-12-09
•
Granted: 1971-12-21
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Expires: 1988-12-09
Abstract
Abstract A device for manufacturing pipes from glass metal comprises, a vertically extending mold which is laterally split into three portions and is supported for vertical reciprocation. The device includes an assembly for laterally displacing the mold portions into operative engagement with one another, and out of engagement with one another. A tipping ladle feeder is fixed to one of the portions of the mold and is vertically displaceable together with that one portion of the mold.
Inventors
- 👤 Mikhail Ivanovich Kozmin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:38
CPC Classifications
C; C03; C03B; C03B19/00; C03B19/02
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
38 words
A device as claimed in claim 1 wherein said longitudinal sections are vertical, said first two sections being pivotally connected to provide said relative lateral displacement thereof, the third section being vertically displaceable relative to said two sections.
Claim 2
Dependent Claim
33 words
A device as claimed in claim 2, wherein said first two sections laterally embrace said third section, said sections having interfitting longitudinal slots into and along which said third section is vertically displaceable.
Claim 3
Dependent Claim
36 words
A device as claimed in claim 1, including a core and means supporting said core for axial displacement into and out of the enclosure of said sections, and means for rotating said core within said enclosure.
Claim 4
Dependent Claim
69 words
A device as claimed in claim 2, wherein said means for tilting said ladle feeder comprises an axle fixed to the ladle feeder, a worm wheel secured to said axle, a worm in mesh with said worm wheel, a gear rigidly coupled with said worm, and a fixed vertical rack, said gear being in mesh with said rack to tilt said ladle feeder as the latter is vertically displaced.
References Cited (Backward Citations)
US261961A
Cited
US305716A
Cited
US384295A
Cited
US438807A
Cited
US1017876A
Cited
US1374392A
Cited
US1527729A
Cited
US1607475A
Cited
US2320341A
Cited
US2772517A
Cited
US3106005A
Cited
US3181222A
Cited
US3362854A
Cited
US3276091A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-20 | 1975-06-21 | 1975-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-20 | 1979-06-21 | 1979-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-20 | 1983-06-21 | 1983-12-21 | $7700.00 | Window Closed / Lapsed |