US3655314A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spinning apparatus composed of modular spinning units on common heating beam
Assignee: Oerlikon Barmag AG
•
Filing: 1970-02-17
•
Granted: 1972-04-11
•
Expires: 1990-02-17
Abstract
Abstract Elongated spinning beam with elongated, hollow heating member of flat, L- or U-cross section having removable mounted thereon a plurality of side-by-side melt spinning units, each having blocklike units of pumps, spinning nozzle packs, and melt-conveying connecting units; interposed block-like members with melt distribution lines including stopcocks for supplying melt along the beam to respective pumps; and upper heat-conductive distributor plates or bars above the pumps and nozzle packs for uniform heat distribution within an encapsulating, heat insulating jacket.
Inventors
- 👤 Erich Lenk
- 👤 Theodor Krawszik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:22
CPC Classifications
D; D01; D01D; D01D4/00
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
163 words
An elongated spinning beam useful in the melt spinning of synthetic polymers which comprises an elongated, hollow, heating member with flat upper surface; a plurality of spinning units mounted on said member, each unit including one or more spinning nozzle packs, a pump for pumping melt thereto, and one or more heat-conductive, melt-conveying blocks with melt-passage means therein connecting a respective pump with its respective spinning nozzle packs; said packs, pumps and blocks being in heatconducting contact with said heating member, said pumps and blocks resting on said flat upper surface; heat-distributing means including at least one elongated, heat-conductive plate or bar positioned over said packs, pumps and blocks and encasing the latter between said plate or bar and said heating member and providing a heat-conductance bridge adapted to absorb heat and distribute it substantially evenly along the bridge; and a heatinsulating jacket substantially encapsulating said member and said plates or bars to reduce heat loss to the surrounding environment from said apparatus.
Claim 2
Dependent Claim
163 words
An elongated spinning beam useful in the melt spinning of synthetic polymers which comprises an elongated, hollow, heating member with flat upper surface; a plurality of spinning units mounted on said member, each unit including one or more spinning nozzle packs, a pump for pumping melt thereto, and one or more heat-conductive, melt-conveying blocks with melt-passage means therein connecting a respective pump with its respective spinning nozzle packs; said packs, pumps and blocks being in heatconducting contact with said heating member, said pumps and blocks resting on said flat upper surface; heat-distributing means including at least one elongated, heat-conductive plate or bar positioned over said packs, pumps and blocks and encasing the latter between said plate or bar and said heating member and providing a heat-conductance bridge adapted to absorb heat and distribute it substantially evenly along the bridge; and a heatinsulating jacket substantially encapsulating said member and said plates or bars to reduce heat loss to the surrounding environment from said apparatus.
Claim 3
Dependent Claim
34 words
A beam as claimed in claim 1 wherein said heat-distributing means comprises a plurality of elongated plates or bars extending longitudinally of said member and arranged with opposed edges in direct, face-to-face, heat-conducting contact.
Claim 4
Dependent Claim
31 words
A beam as claimed in claim 1 wherein said member has a plurality of passage means extending transversely therethrough, and means removably mounting said spinning nozzle packs in respective passage means.
Claim 5
Dependent Claim
26 words
A beam as claimed in claim 1 wherein the walls of said member define a hollow space of substantially L- or U-shape in transverse cross section.
Claim 6
Dependent Claim
70 words
A beam as claimed in claim 1 wherein the walls of said member include an elongated, horizontal, upper wall and an opposing, elongated, lower wall defining with side walls connecting said upper and lower walls an elongated passage for conductance of heating medium therethrough, and a plurality of heat-conductive fins depending from the upper walL into said passage with the lower edges thereof near, but spaced from, said lower wall.
Claim 7
Dependent Claim
49 words
A beam as claimed in claim 1 wherein said heat-distributing means is an elongated, heat-conductive plate or bar extending across a plurality of said units immediately above the packs, pumps and melt-conveying members of each unit, and means on said plate or bar in heat-conducting contact with said member.
Claim 8
Dependent Claim
75 words
A beam as claimed in claim 3 wherein said spinning nozzle packs comprise a heat-conductive block with melt passage means therethrough, said block being immediately next to a second block constituting said melt-conveying member, opposing ends of the respective melt passage means of said blocks being aligned, sealing means between said opposing faces of said blocks around said opposing ends, and means pressing said blocks together to compress said sealing means between said opposing faces.
Claim 9
Dependent Claim
62 words
A beam as claimed in claim 1 wherein said apparatus has a plurality of elongated passages extending transversely therethrough, upwardly facing, shoulder-forming means on opposite, longitudinal sides of said passages above said melt passage means, and downwardly facing, shoulder-forming means on said spinning nozzle packs resting respectively on said first-mentioned shoulder-forming means, whereby said packs may be lifted out of said passages.
Claim 10
Dependent Claim
75 words
A beam as claimed in claim 1, a melt manifold block interposed between adjacent spinning units and having a flat face opposing a flat face of said first-mentioned block, respective melt passage means in said blocks being aligned at said faces, means for pressing said faces together, a stopcock in the melt passage means of said manifold block, and means for connecting an external melt supply line to said passage means of said manifold block.
Claim 11
Dependent Claim
27 words
A beam as claimed in claim 1 wherein the melt passage means in said blocks provide at least two, separate passages for supply of melt independently therethrough.
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) | 1975-04-11 | 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 |