US4521457A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Simultaneous formation and deposition of multiple ribbon-like streams
Assignee: Xerox Corp
•
Filing: 1982-09-21
•
Granted: 1985-06-04
•
Expires: 2002-09-21
Abstract
Abstract At least one ribbon-like stream of a first coating composition adjacent to and in edge contact with at least one second ribbon-like stream of a second coating composition are deposited on the surface of a support member by establishing relative motion between the surface of the support member and the ribbon-like streams, simultaneously constraining and forming the ribbon-like streams parallel to and closely spaced from each other, contacting adjacent edges of the ribbon-like streams prior to applying the ribbon-like streams to the surface of the support member and thereafter applying the ribbon-like streams to the surface of the support member.
Inventors
- 👤 Philip P. Russell
- 👤 Tyan-Faung Niu
- 👤 Frederic A. Holland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 01:52
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/74; B; B05; B05C; B05C5/00; B05C5/02; B05C5/0254; B05C9/00; B05C9/06; B05D; B05D1/00; B05D1/26; B05D1/265; B05D1/34; G03G; G03G5/00; G03G5/02; G03G5/04; B05D5/00; B05D5/06; G03C2001/7459
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
159 words
A process for applying to a surface of a support member at least one ribbon-like stream of a first coating composition side-by-side to and in edge contact with at least one second ribbon-like stream of a second coating composition comprising providing a source for said ribbon-like streams, establishing relative motion between said surface of said support member and said source of said ribbon-like streams, simultaneously constraining and forming said ribbon-like streams parallel to, side-by-side to and spaced from each other, contacting adjacent edges of said ribbon-like streams prior to applying said ribbon-like streams to said surface of said support member, and continuously applying said ribbon-like streams to said surface of said support member whereby said ribbon-like streams extend in the direction of relative movement of said surface of said support member and said source of said ribbon-like streams to form a continuous unitary layer having a boundary between said side-by-side ribbon-like streams on said surface of said support member.
Claim 2
Dependent Claim
159 words
A process for applying to a surface of a support member at least one ribbon-like stream of a first coating composition side-by-side to and in edge contact with at least one second ribbon-like stream of a second coating composition comprising providing a source for said ribbon-like streams, establishing relative motion between said surface of said support member and said source of said ribbon-like streams, simultaneously constraining and forming said ribbon-like streams parallel to, side-by-side to and spaced from each other, contacting adjacent edges of said ribbon-like streams prior to applying said ribbon-like streams to said surface of said support member, and continuously applying said ribbon-like streams to said surface of said support member whereby said ribbon-like streams extend in the direction of relative movement of said surface of said support member and said source of said ribbon-like streams to form a continuous unitary layer having a boundary between said side-by-side ribbon-like streams on said surface of said support member.
Claim 3
Dependent Claim
34 words
A process according to claim 1 including maintaining the spacing between said ribbon-like streams less than about 100 micrometers while simultaneously constraining and forming said ribbon-like streams parallel to and spaced from each other.
Claim 4
Dependent Claim
37 words
A process according to claim 2 including maintaining the spacing between said ribbon-like streams between about 25 micrometers and about 75 micrometers while simultaneously constraining and forming said ribbon-like streams parallel to and spaced from each other.
Claim 5
Dependent Claim
31 words
A process according to claim 1 including equalizing the pressure between each of said ribbon-like streams while simultaneously constraining and forming said ribbon-like streams parallel to and spaced from each other.
Claim 6
Dependent Claim
31 words
A process according to claim 1 wherein the viscosity of said first coating composition is greater than the viscosity of said second coating composition by a factor up to about 10.
Claim 7
Dependent Claim
35 words
A process according to claim 1 including maintaining laminar flow in said ribbon-like streams when contacting adjacent edges of said ribbon-like streams prior to applying said ribbon-like streams to said surface of said support member.
Claim 8
Dependent Claim
37 words
A process according to claim 1 including maintaining the thickness of said ribbon-like streams between about 25 micrometers and about 750 micrometers while simultaneously constraining and forming said ribbon-like streams parallel to and spaced from each other.
Claim 9
Dependent Claim
37 words
A process according to claim 7 including maintaining the thickness of said ribbon-like streams between about 100 micrometers and about 250 micrometers while simultaneously constraining and forming said ribbon-like streams parallel to and spaced from each other.
Claim 10
Dependent Claim
37 words
A process according to claim 7 including maintaining the thickness of said ribbon-like streams between about 150 micrometers and about 200 micrometers while simultaneously constraining and forming said ribbon-like streams parallel to and spaced from each other.
References Cited (Backward Citations)
US510110A
Cited
US1857242A
Cited
GB456968A
Cited
US2031387A
Cited
US3032008A
Cited
US3106481A
Cited
US3278960A
Cited
US3508947A
Cited
US3761552A
Cited
US3807918A
Cited
US3920862A
Cited
US4162288A
Cited
US4193752A
Cited
US4222979A
Cited
US4224266A
Cited
US4387123A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-06-03 | 1988-12-03 | 1989-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-06-03 | 1992-12-03 | 1993-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-06-03 | 1996-12-03 | 1997-06-04 | $7700.00 | Window Closed / Lapsed |