US3633353A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for eliminating vapor and condensate from drawing arrangements
Assignee: Maschinenfabrik Rieter AG
•
Filing: 1970-05-13
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Granted: 1972-01-11
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Expires: 1990-05-13
Abstract
Abstract The suction hood is mounted to receive condensate from the bloc heater either indirectly via the rooflike cover (FIG. 1) or directly (FIG. 2). The received condensate leaves the suction hood via drain openings adjacent the backwall so as to flow downwardly without contacting the draw rolls. The vapor is eliminated by suction from above and below the block heater via the tubes and hood.
Inventors
- 👤 Arthur Wurmli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 02:50
CPC Classifications
D; D02; D02J; D02J13/00; D02J13/008
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
111 words
An apparatus for eliminating vapor and condensate from a drawing arrangement for endless threads having a block heater, a first cover over said heater and a draw roll below said heater; said apparatus comprising means defining a chimneylike compartment between said heater and draw roll, said means including a second cover at the upper end of said compartment below said heater and a vertical backwall extending below said draw roll; and a suction hood suspended below said second cover, said hood communicating with said heater to receive condensate dripping from said heater and communicating with said backwall to guide the received condensate to said backwall for flowing past said draw roll.
Claim 2
Independent Claim
111 words
An apparatus for eliminating vapor and condensate from a drawing arrangement for endless threads having a block heater, a first cover over said heater and a draw roll below said heater; said apparatus comprising means defining a chimneylike compartment between said heater and draw roll, said means including a second cover at the upper end of said compartment below said heater and a vertical backwall extending below said draw roll; and a suction hood suspended below said second cover, said hood communicating with said heater to receive condensate dripping from said heater and communicating with said backwall to guide the received condensate to said backwall for flowing past said draw roll.
Claim 3
Dependent Claim
24 words
An apparatus as set forth in claim 1 wherein said first cover includes a lowermost point for dripping of condensate therefrom into said hood.
Claim 4
Dependent Claim
32 words
An apparatus as set forth in claim 1 which further comprises a plurality of said heaters and draw rolls, and a corresponding plurality of said compartments having a separate suction hood therein.
Claim 5
Dependent Claim
21 words
An apparatus as set forth in claim 1 wherein said suction hood has a condensate collector groove therein extending longitudinally thereof.
Claim 6
Dependent Claim
17 words
An apparatus as set forth in claim 4 wherein said collector groove is provided at said backwall.
Claim 7
Dependent Claim
30 words
An apparatus as set forth in claim 4 wherein said condensate collector groove is provided with condensate drain openings arranged near said backwall and laterally offset from said draw roll.
Claim 8
Dependent Claim
20 words
An apparatus as set forth in claim 1 wherein said backwall forms a condensate collector groove below said draw roll.
Claim 9
Dependent Claim
33 words
An apparatus as set forth in claim 1 wherein said suction hood has a suction opening directed upwardly and arranged vertically below an opening in said second cover and below said block heater.
Claim 10
Dependent Claim
34 words
An apparatus as set forth in claim 8 wherein said block heater has a point arranged vertically above said suction opening of said suction hood for dripping of condensate directly into said suction hood.
Claim 11
Dependent Claim
23 words
An apparatus as set forth in claim 1 wherein said suction hood has suction openings communicating with the lower end of said heater.
Claim 12
Dependent Claim
21 words
An apparatus as set forth in claim 1 wherein said means includes a pair of separator walls extending from said backwall.
Claim 13
Dependent Claim
25 words
An apparatus as set forth in claim 11 wherein each separator wall has a lower edge inclined downwardly towards said backwall to direct condensate thereto.
Claim 14
Dependent Claim
33 words
An apparatus as set forth in claim 1 wherein said second cover is inclined downwardly towards said backwall and includes a groove therein and drain openings in said groove communicating with said hood.
Claim 15
Dependent Claim
33 words
An apparatus as set forth in claim 1 wherein said second cover is inclined downwardly towards said backwall and said heater has a point for dripping of condensate therefrom onto said second cover.
Claim 16
Dependent Claim
24 words
An apparatus as set forth in claim 1 wherein said suction hood has a suction duct extending upwardly for connection to a suction source.
Claim 17
Dependent Claim
15 words
An apparatus as set forth in claim 1 wherein said second cover is roof shaped.
Claim 18
Dependent Claim
22 words
An apparatus as set forth in claim 16 wherein said second cover has a condensate drain opening arranged on one side thereof.
Claim 19
Dependent Claim
32 words
An apparatus as set forth in claim 1 which further includes a suction means at the upper end of said heater and a suction means at the lower end of said heater.
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) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |