US5536352A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods of making centrifugally cast parts
Assignee: Eastman Kodak Co
•
Filing: 1994-11-14
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Granted: 1996-07-16
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Expires: 2014-11-14
Abstract
Abstract This invention provides the method of centrifugal casting consisting of the steps of: adding a polymeric material to a centrifugal apparatus; centrifuging said polymeric material until said polymeric material is cast; removing said cast polymeric material from said centrifugal apparatus; and mounting said cast polymeric material to an outside surface of a support, whereby the air interface side of said cast polymeric material is furthest from the outside surface of the support.
Inventors
- 👤 Robert E. Zeman
- 👤 David R. Jackson
- 👤 II William B. Vreeland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:33
CPC Classifications
B; B29; B29C; B29C41/00; B29C41/02; B29C41/22; B29C41/04; B29C41/042; B29C2791/00; B29C2791/001; B29C41/08
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
76 words
The method of making a cast member comprising the steps of: adding a film-forming polymeric material to a centrifugal apparatus; centrifuging said polymeric material until said polymeric material is cast into a cylindrical shape; removing said cast polymeric material from said centrifugal apparatus; and mounting said cast polymeric material to an outside surface of a support, whereby the smooth air interface side of said cast polymeric material is furthest from said outside surface of said support.
Claim 2
Independent Claim
76 words
The method of making a cast member comprising the steps of: adding a film-forming polymeric material to a centrifugal apparatus; centrifuging said polymeric material until said polymeric material is cast into a cylindrical shape; removing said cast polymeric material from said centrifugal apparatus; and mounting said cast polymeric material to an outside surface of a support, whereby the smooth air interface side of said cast polymeric material is furthest from said outside surface of said support.
Claim 3
Dependent Claim
18 words
The method of claim 1 further comprising the step of heating said centrifugal apparatus during said centrifuging step.
Claim 4
Dependent Claim
22 words
The method of claim 1 further comprising the step of putting a base into the centrifugal apparatus prior to said adding step.
Claim 5
Dependent Claim
20 words
The method of claim 3 further comprising the steps of cleaning and priming said base prior to said putting step.
Claim 6
Dependent Claim
23 words
The method of claim 1 further comprising the step of cutting said cast polymeric material down a seam prior to said removing step.
Claim 7
Dependent Claim
12 words
The method of claim 1 wherein the mounting step comprises using adhesive.
Claim 8
Dependent Claim
12 words
The method of claim 1 wherein said mounting step comprises using bolts.
Claim 9
Dependent Claim
23 words
The method of claim 1 wherein said polymeric material is selected from the group consisting of polyurethane, fluoroelastomer, fluoropolymer resin, and silicone rubber.
Claim 10
Dependent Claim
44 words
The method of claim 1 further comprising the steps of forming an additional polymeric material by a method selected from the group consisting of extrusion-molding, spray-coating, ring-coating and compression-molding; and putting said additional polymeric material into the centrifugal apparatus prior to said adding step.
Claim 11
Dependent Claim
24 words
The method of claim 1 whereby said surface roughness of said air interface side of said cast polymeric material is less than 100μ inches.
Claim 12
Independent Claim
80 words
The method of forming electrostatographic cast member comprising the steps of: adding a polymeric material to a centrifugal apparatus; centrifuging said polymeric material until said polymeric material is cast into a cylindrical shape; removing said cast polymeric material from said centrifugal apparatus; and mounting said cast polymeric material to an outside surface of a support of an electrostatographic member whereby the smooth air interface side of said cast polymeric material is furthest away from said outside surface of said support.
Claim 13
Independent Claim
80 words
The method of forming electrostatographic cast member comprising the steps of: adding a polymeric material to a centrifugal apparatus; centrifuging said polymeric material until said polymeric material is cast into a cylindrical shape; removing said cast polymeric material from said centrifugal apparatus; and mounting said cast polymeric material to an outside surface of a support of an electrostatographic member whereby the smooth air interface side of said cast polymeric material is furthest away from said outside surface of said support.
Claim 14
Dependent Claim
32 words
The method of claim 11 whereby said electrostatographic cast member is selected from the group consisting of fuser rollers, fuser belts, intermediate transfer rollers, intermediate transfer belts, electrostatographic drums, and electrostatographic belts.
Claim 15
Dependent Claim
18 words
The method of claim 11 further comprising the step of heating said centrifugal apparatus during said centrifuging step.
Claim 16
Dependent Claim
20 words
The method of claim 11 further comprising the step of coating said cast polymeric material with an additional polymeric material.
Claim 17
Dependent Claim
22 words
The method of claim 12 further comprising the step of putting a base into the centrifugal apparatus prior to said adding step.
Claim 18
Dependent Claim
23 words
The method of claim 11 further comprising the step of cutting the cast polymeric material down a seam prior to said removing step.
Claim 19
Dependent Claim
23 words
The method of claim 11 wherein said polymeric material is selected from the group consisting of polyurethane, fluoroelastomer, fluoropolymer resin, and silicone rubber.
Claim 20
Dependent Claim
49 words
The method of claim 11 further comprising the steps of coating a polymeric material onto a base by a method selected from the group consisting of extrusion-molding, spray-coating, ring-coating and compression-molding; and putting said base coated with said polymeric material into the centrifugal apparatus prior to said adding step.
Claim 21
Dependent Claim
24 words
The method of claim 11 whereby said surface roughness of said air interface side of said cast polymeric material is less than 25μ inches.
Claim 22
Dependent Claim
24 words
The method of claim 11 whereby said surface roughness of said air interface side of said cast polymeric material is less than 10μ inches.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-07-16 | 2000-01-15 | 2000-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-07-16 | 2004-01-15 | 2004-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-07-16 | 2008-01-15 | 2008-07-16 | $7700.00 | Window Closed / Lapsed |