US3827397A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for coating moving filamentary strands
Assignee: Individual
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Filing: 1971-06-29
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Granted: 1974-08-06
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Expires: 1991-06-29
Abstract
Abstract Apparatus for coating continuous moving filamentary strands with a binder material that has a walled binder material supply chamber and a walled sump chamber, said chambers having a nonrotatable applicator shoe with an exteriorly exposed surface and interposed in spaced relationship between the chamber walls. Binder material under low pressure flows in a sheet-like film from the supply chamber to the sump chamber by wall attachment over the exposed surface of the applicator shoe. The filamentary strands in contact with and moving through the sheet-like binder material are thereby continuously coated with the binder material.
Inventors
- 👤 L Uhl
- 👤 F Hebberling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:35
CPC Classifications
C; C03; C03C; C03C25/00; C03C25/10; C03C25/12; C03C25/20; D; D06; D06B; D06B1/00; D06B1/08
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
191 words
Applicator apparatus for coating movable filamentary strands with a binder material comprising an enclosed applicator head including a tubular housing member having an axially extending peripheral slot therein, a generally transversely positioned, axially extending partition member interiorly dividing the housing into a walled supply chamber and a walled sump chamber and having a convexly curved applicator surface at one end thereof extending through and externally of said slot in said housing member, said housing and said partition member providing a flow path for binder material introduced into said supply chamber and flowing by wall attachment around the curved applicator surface to the sump chamber through an axially extending exit slit formed between one side of the partition member and one edge of said housing slot and into an axially extending entrance slit formed between the other side of the partition member and the other edge of said housing slot into said sump chamber, and adjusting means accessible exteriorly of said housing for movably adjusting the position of said partition member interiorly of the housing to simultaneously vary in a controlled manner the width of said exit slit and said entrance slit.
Claim 2
Dependent Claim
191 words
Applicator apparatus for coating movable filamentary strands with a binder material comprising an enclosed applicator head including a tubular housing member having an axially extending peripheral slot therein, a generally transversely positioned, axially extending partition member interiorly dividing the housing into a walled supply chamber and a walled sump chamber and having a convexly curved applicator surface at one end thereof extending through and externally of said slot in said housing member, said housing and said partition member providing a flow path for binder material introduced into said supply chamber and flowing by wall attachment around the curved applicator surface to the sump chamber through an axially extending exit slit formed between one side of the partition member and one edge of said housing slot and into an axially extending entrance slit formed between the other side of the partition member and the other edge of said housing slot into said sump chamber, and adjusting means accessible exteriorly of said housing for movably adjusting the position of said partition member interiorly of the housing to simultaneously vary in a controlled manner the width of said exit slit and said entrance slit.
Claim 3
Dependent Claim
26 words
Applicator apparatus in accordance with claim 1 wherein said adjusting means affects the width of said exit slit inversely to the width of said entrance slit.
Claim 4
Dependent Claim
40 words
Applicator apparatus in accordance with claim 1 wherein said adjusting means includes a pair of adjusting screws accessible exteriourly of and received in said housing and bearing on opposite sides of said partition member adjacent the curved applicator end thereof.
Claim 5
Dependent Claim
42 words
Applicator apparatus in accordance with claim 1 wherein said applicator head includes an axially extending baffle dam on one side of said partition member within said housing for uniform distribution of the binder material along the length of the said supply chamber.
Claim 6
Dependent Claim
26 words
The apparatus of claim 1 wherein the width of the entrance slit to the sump chamber is wider than the exit slit from the supply chamber.
Claim 7
Dependent Claim
26 words
The apparatus of claim 1 wherein there is means to recirculate the binder material from the sump chamber back to the supply chamber under low pressure.
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) | 1977-08-05 | 1978-02-04 | 1978-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-05 | 1982-02-04 | 1982-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-05 | 1986-02-04 | 1986-08-06 | $7700.00 | Window Closed / Lapsed |