Patent US3770051A successfully refreshed from Google Patents.
US3770051A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for heat treatment of synthetic fibre yarn
Assignee: Individual
•
Filing: 1972-03-29
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Granted: 1973-11-06
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Expires: 1992-03-29
Abstract
Abstract Heat treatment apparatus for synthetic fiber yarn including a plurality of spaced heating units, each unit including a vertically positioned closed vessel having a longitudinally positioned heater chamber. Liquid in the chamber, when heated, produces a heated vapor in the vessel for heating the exterior yarn contacting faces fixed thereon. The heater chambers are interconnected such that a uniform temperature is maintained in each of the heating units. The units are interconnected by flexible conduits or pipes to allow the spacing between the heating units to be conveniently adjusted.
Inventors
- 👤 N Kodaira
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:37
CPC Classifications
D; D02; D02J; D02J13/00; D02J13/003; D06; D06B; D06B3/00; D06B3/04; D06B3/045
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
64 words
Apparatus for heaT treating synthetic fibrous yarn comprising: a plurality of heat exchangers, each said heat exchanger including a vapor chamber and a liquid heating chamber; heating means in each said heating chamber for heating a liquid contained therein; conduit means connecting an upper portion of each said vapor chamber to said heating chamber; and flexible conduit means connecting each of said heating chambers.
Claim 2
Dependent Claim
64 words
Apparatus for heaT treating synthetic fibrous yarn comprising: a plurality of heat exchangers, each said heat exchanger including a vapor chamber and a liquid heating chamber; heating means in each said heating chamber for heating a liquid contained therein; conduit means connecting an upper portion of each said vapor chamber to said heating chamber; and flexible conduit means connecting each of said heating chambers.
Claim 3
Dependent Claim
42 words
The apparatus as defined in claim 1 wherein said first-mentioned conduit means includes a header, said upper portion of each of said vapor chambers being connected to said header and means connecting said header to at least some of said heating chambers.
Claim 4
Dependent Claim
35 words
The apparatus of claim 2 wherein said means connecting the upper portion of said vapor chamber to said header and said means connecting said header to at least some of said chambers comprises flexible conduit.
Claim 5
Dependent Claim
67 words
The apparatus as defined in claim 1 and further comprising condenser means connected between the upper portion of each said vapor chamber and said heating chamber; and a pair of flexible conduits interconnecting each of said heating chambers, one of said pair being adapted for transmission of liquid between said heating chambers and the other of said pair being adapted for transmission of vapor between said chambers.
Claim 6
Dependent Claim
83 words
Apparatus for heat treatment of synthetic fiber yarn comprising: a plurality of vertical closed vessels; heater chambers extending from one side of the bottom of each of said vertical vessels, the interior of each of said vessels communicating with the interior of the associated heater chamber; yarn-contacting faces on the front and back portions of each said vessel; pipe means connecting the upper portion of each said vessel to said heater chamber; and flexible pipe means connecting said heater chambers to each other.
Claim 7
Dependent Claim
83 words
Apparatus for heat treatment of synthetic fiber yarn comprising: a plurality of vertical closed vessels; heater chambers extending from one side of the bottom of each of said vertical vessels, the interior of each of said vessels communicating with the interior of the associated heater chamber; yarn-contacting faces on the front and back portions of each said vessel; pipe means connecting the upper portion of each said vessel to said heater chamber; and flexible pipe means connecting said heater chambers to each other.
Claim 8
Dependent Claim
43 words
The apparatus as claimed in claim 5 characterized in that the upper portion of each said vertical vessel is connected to an upper communicating pipe with a flexible pipe, and said upper communicating pipe is connected to said heater chambers with flexible pipes.
Claim 9
Dependent Claim
42 words
The apparatus as claimed in claim 5 characterized in that the interior of each said heater chamber includes a liquid phase portion and a vapor phase portion, said liquid phase portions of each of said heater chambers being interconnected to one another.
Claim 10
Dependent Claim
65 words
The apparatus as claimed in claim 5 characterized in that the upper portion of each said vessel is connected to each heater chamber through a pipe means including a condenser, and said heater chambers are connected to one another through a pair of pipes, one of said pair being positioned for a liquid transmission and the other of said pair being positioned for vapor transmission.
Claim 11
Dependent Claim
37 words
The apparatus as claimed in claim 1 characterized in that said yarn-contacting faces on the front and back portions of said vessels are in the form of a groove extending vertically along the length of said vessels.
Claim 12
Dependent Claim
15 words
The apparatus as claimed in claim 5 characterized in that said yarn-contacting faces are flat.
References Cited (Backward Citations)
US2125261A
Cited
FR1114814A
Cited
US3298430A
Cited
US3395433A
Cited
US3534483A
Cited
US3507322A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-11-05 | 1977-05-07 | 1977-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-05 | 1981-05-07 | 1981-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-05 | 1985-05-07 | 1985-11-06 | $7700.00 | Window Closed / Lapsed |