US3924564A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fusing apparatus having an articulated release material dispenser
Assignee: Xerox Corp
•
Filing: 1975-01-13
•
Granted: 1975-12-09
•
Expires: 1995-01-13
Abstract
Abstract An apparatus in which a quantity of release material is dispensed to a heated fuser member. The heated fuser member is operatively associated with a back up member. A sheet of support material having particles thereon passes between the back up member and fuser member. The particles on the sheet of support material contact the fuser member as it passes between the fuser member and back up member. Release material is periodically moved into and out of contact with the fuser member.
Inventors
- 👤 Ari Bar-On
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:42
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/20; G03G15/2003; G03G15/2014; G03G15/2017; G03G15/2025
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
86 words
In an electrostatographic printing machine, an apparatus for dispensing a quantity of release material to a heated fuser member operatively associated with a backup member wherein a sheet of support material having particles thereon passes therebetween with the particles contacting the fuser member, including: means for applying the release material to the surface of the fuser member; and means for automatically, periodically moving the applying means into and out of engagement with the surface of the continuously operating fuser member to apply the release material thereto.
Claim 2
Dependent Claim
86 words
In an electrostatographic printing machine, an apparatus for dispensing a quantity of release material to a heated fuser member operatively associated with a backup member wherein a sheet of support material having particles thereon passes therebetween with the particles contacting the fuser member, including: means for applying the release material to the surface of the fuser member; and means for automatically, periodically moving the applying means into and out of engagement with the surface of the continuously operating fuser member to apply the release material thereto.
Claim 3
Dependent Claim
32 words
In an electrostatographic printing machine, an appaRatus as recited in claim 1, further including a blade member contacting the fuser member to adjust the thickness of the release material layer applied thereto.
Claim 4
Dependent Claim
69 words
In an electrostatographic printing machine, an apparatus as recited in claim 2, wherein said applying means includes: a frame; a supply spool mounted rotatably on said frame; a take-up spool spaced from said supply spool and mounted rotatably on said frame; and a web of flexible material entrained about said take-up spool and said supply spool, said web having a layer of release material adhering to one surface thereof.
Claim 5
Dependent Claim
45 words
In an electrostatographic printing machine, an apparatus as recited in claim 3, wherein said applying means further includes means for indexing said take-up spool to periodically advance said web from said supply spool positioning fresh release material in the region opposed from said fuser member.
Claim 6
Dependent Claim
67 words
In an electrostatographic printing machine, an apparatus as recited in claim 4, wherein said moving means includes: a rod mounted slidably on said frame and engaging the other surface of said web; and means for reciprocating said rod to move said web from an inoperative position spaced from the fuser member to an operative position in contact therewith and for returning said rod to the inoperative position.
Claim 7
Dependent Claim
64 words
In an electrostatographic printing machine, an apparatus as recited in claim 2, wherein said applying means includes: a frame; a housing having an open ended chamber therein, said housing being mounted movably on said frame; and a bar of release material disposed in the chamber of said housing with a portion thereof extending outwardly from the open end of the chamber of said housing.
Claim 8
Dependent Claim
57 words
In an electrostatographic printing machine, an apparatus as recited in claim 6, where said moving means includes means for reciprocating said housing to move said bar of release material from an inoperative position spaced from the fuser member to an operative position in contact therewith and for returning said bar of release material to the inoperative position.
Claim 9
Dependent Claim
94 words
A fusing apparatus employed in an electrostatographic printing machine for permanently affixing toner particles to a sheet of support material, including: a heated fuser roll; a backup roll operatively associated with said fuser roll to enable the sheet of support material to pass therebetween with the toner particles contacting said fuser roll; means for applying a release material to the surface of said fuser roll; and means for automatically, periodically moving said applying means into and out of engagement with the surface of said continuously operating fuser roll to apply the release material thereto.
Claim 10
Dependent Claim
94 words
A fusing apparatus employed in an electrostatographic printing machine for permanently affixing toner particles to a sheet of support material, including: a heated fuser roll; a backup roll operatively associated with said fuser roll to enable the sheet of support material to pass therebetween with the toner particles contacting said fuser roll; means for applying a release material to the surface of said fuser roll; and means for automatically, periodically moving said applying means into and out of engagement with the surface of said continuously operating fuser roll to apply the release material thereto.
Claim 11
Dependent Claim
27 words
An apparatus as recited in claim 8, further including a blade member contacting said fuser roll to adjust the thickness of the release material layer applied thereto.
Claim 12
Dependent Claim
64 words
An apparatus as recited in claim 9, wherein said applying means includes: a frame; a supply spool mounted rotatably on said frame; a take-up spool spaced from said supply spool and mounted rotatably on said frame; and a web of flexible material entrained about said take-up spool and said supply spool, said web having a layer of release material adhering to one surface thereof.
Claim 13
Dependent Claim
40 words
An apparatus as recited in claim 10, wherein said applying means further includes means for indexing said take-up spool to periodically advance said web from said supply spool positioning fresh release material in the region opposed from said fuser roll.
Claim 14
Dependent Claim
62 words
An apparatus as recited in claim 11, wherein said moving means includes: a rod mounted slidably on said frame and engaging the other surface of said web; and means for reciprocating said rod to move said web from an inoperative position spaced from said fuser roll to an operative position in contact therewith and for returning said rod to the inoperative position.
Claim 15
Dependent Claim
59 words
An apparatus as recited in claim 9, wherein said Applying means includes: a frame; a housing having an open ended chamber therein, said housing being mounted movable on said frame; and a bar of release material disposed in the chamber of said housing with a portion thereof extending outwardly from the open end of the chamber of said housing.
Claim 16
Dependent Claim
52 words
An apparatus as recited in claim 13, wherein said moving means includes means for reciprocating said housing to move said bar of release material from an inoperative position spaced from said fuser roll to an operative position in contact therewith and for returning said bar of release material to the inoperative position.
References Cited (Backward Citations)
US2313891A
Cited
US3103459A
Cited
US2284590A
Cited
US3130933A
Cited
US3637976A
Cited
US3861863A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-08 | 1979-06-09 | 1979-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-08 | 1983-06-09 | 1983-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-08 | 1987-06-09 | 1987-12-09 | $7700.00 | Window Closed / Lapsed |