Claims
- 1. A release agent delivery apparatus adapted to be mounted against a roller which comprises
- an absorbent textile core filled with release agent;
- a tubular permeable membrane of polytetrafluoroethylene (PTFE) surrounding the textile core to form a sheathed wick member with open ends; and
- a mounting sleeve adapted to receive the sheathed wick member and retain the wick member in contact with the roller, wherein the sheathed wick member is readily removable from the sleeve and adapted to be reinserted therein with a different surface in contact with the roller.
- 2. The apparatus of claim 1 wherein the absorbent textile core comprises a fibrous rope material.
- 3. The apparatus of claim 2 wherein the fibrous rope is selected from the group consisting of fiberglass, polyimide, copolyimide, polyphenylene sulfide, polytetrafluoroethylene, chlorotrifluoroethylene, polyester, acrylic, modacrylic, aramid, and novoloid.
- 4. The apparatus of claim 1 wherein the permeable membrane comprises a sheet of expanded PTFE.
- 5. The apparatus of claim 4 wherein the sheet of expanded PTFE comprises a tape wrapped around the wick.
- 6. The apparatus of claim 1 wherein the permeable membrane comprises a continuous tube of expanded PTFE surrounding the wick.
- 7. The apparatus of claim 1 wherein the permeable membrane includes a coating of fluorinated ethylenepropylene (FEP).
- 8. A release agent delivery apparatus adapted to be mounted against a roller which comprises
- a sheathed wick member including an absorbent textile core filled with release agent, and a tubular permeable membrane of polytetrafluoroethylene (PTFE) surrounding the textile core; and
- a mounting sleeve adapted to receive the sheathed wick member and retain a first contact surface of the wick member in contact with the roller;
- wherein the sheathed wick member is readily removable from the sleeve and adapted to be reinserted therein with a different surface in contact with the roller.
- 9. The apparatus of claim 8 wherein the sheathed wick member includes at least one open end.
RELATED APPLICATIONS
The present application is a division of copending U.S. patent application Ser. No. 08/127,670 filed Sep. 28, 1993.
US Referenced Citations (29)
Foreign Referenced Citations (19)
Number |
Date |
Country |
0 137 129 |
Apr 1985 |
EPX |
0 174 474 |
Mar 1986 |
EPX |
0 183 903 |
Jun 1986 |
EPX |
0 240 834 |
Oct 1987 |
EPX |
0 450 894 |
Oct 1991 |
EPX |
1 199 972 |
Sep 1965 |
DEX |
58-37541 |
Aug 1983 |
JPX |
58-42465 |
Sep 1983 |
JPX |
59-84273 |
May 1984 |
JPX |
60-22160 |
Feb 1985 |
JPX |
60-26973 |
Feb 1985 |
JPX |
86-023696 |
Dec 1985 |
JPX |
62-178992 |
Aug 1987 |
JPX |
62-52302 |
Nov 1987 |
JPX |
63-123077 |
May 1988 |
JPX |
63-172186 |
Jul 1988 |
JPX |
88-0243481 |
Mar 1990 |
JPX |
2-144587 |
Jun 1990 |
JPX |
9308512 |
Apr 1993 |
WOX |
Non-Patent Literature Citations (1)
Entry |
ASTM F316-86; pp. 330-338; Pore Size Characteristics of Membrane Filters by Bubble Point and Mean Flow Pore Test. |
Divisions (1)
|
Number |
Date |
Country |
Parent |
127670 |
Sep 1993 |
|