Patent US4015029A successfully refreshed from Google Patents.
US4015029A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Selenium and selenium alloy evaporation technique
Assignee: Xerox Corp
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Filing: 1975-06-27
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Granted: 1977-03-29
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Expires: 1995-06-27
Abstract
Abstract A coating composition and method for vacuum coating inorganic photoconductive material onto a suitable substrate or backing through utilization of the compositions and irradiation heating devices.
Inventors
- 👤 John J. Elchisak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:13
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/22; C23C14/24; C23C14/28
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
74 words
A method for limiting spattering while vacuum coating one or more vaporizable inorganic photoconductive materials or components thereof onto one or more prepared substrates or bases in conjunction with at least one infra red heating device comprising incorporating 1-80% by weight of at least one non-volatile infra red absorbing heat sink material on or within the body of said inorganic photoconductive material or components thereof prior to effecting evaporation of the materials or components.
Claim 2
Independent Claim
74 words
A method for limiting spattering while vacuum coating one or more vaporizable inorganic photoconductive materials or components thereof onto one or more prepared substrates or bases in conjunction with at least one infra red heating device comprising incorporating 1-80% by weight of at least one non-volatile infra red absorbing heat sink material on or within the body of said inorganic photoconductive material or components thereof prior to effecting evaporation of the materials or components.
Claim 3
Dependent Claim
39 words
The method of claim 1 wherein the vaporizable inorganic photoconductive material is in the form of discrete particles or pellets, and the non-volatile infra red absorbing heat sink material is present in the amount of about 1-80% by weight.
Claim 4
Dependent Claim
35 words
The method of claim 1 wherein the vaporizable inorganic photoconductive material is in the form of a cast, the non-volatile infra red-absorbing heat sink material being present in the amount of about 1-80% by weight.
Claim 5
Dependent Claim
24 words
The method of claim 2 wherein at least some of the infra red absorbing heat sink material is uniformly admixed with the photoconductive material.
Claim 6
Dependent Claim
33 words
The method of claim 2 wherein at least some of the infra red absorbing heat sink material is present as relatively large discrete particles or shaped pieces, non-uniformly admixed with the photoconductive material.
Claim 7
Dependent Claim
18 words
The method of claim 3 wherein the infra red absorbing component is non-uniformly admixed with said photoconductive material.
Claim 8
Dependent Claim
49 words
The method of claim 4 wherein the non-volatile infra red-absorbing heat sink material is at least one member selected from the group consisting of quartz, nickel, stainless steel, or ceramic pellets or particles, the average diameter of which is greater than that of the particles of inorganic photoconductive material.
Claim 9
Dependent Claim
50 words
The method of claim 5 wherein the non-volatile infra red absorbing heat sink material is at least one member selected from the group consisting of quartz, nickel, stainless steel, and ceramic pellets or particles, the average diameter of which are greater than that of particles of the inorganic photoconductive material.
Claim 10
Independent Claim
58 words
A method for controlling batch coating by vacuum deposition of one or more of selenium or tellurium containing photoconductive components onto a suitable xerographic substrate or base in conjunction with at least one infra red heating device, comprising substantially incorporating about 1-50% by weight of quartz particles on or within the body of said photoconductive components being evaporated.
Claim 11
Independent Claim
58 words
A method for controlling batch coating by vacuum deposition of one or more of selenium or tellurium containing photoconductive components onto a suitable xerographic substrate or base in conjunction with at least one infra red heating device, comprising substantially incorporating about 1-50% by weight of quartz particles on or within the body of said photoconductive components being evaporated.
Claim 12
Dependent Claim
64 words
A crucible for vacuum coating one or more vaporizable inorganic photoconductive materials in conjunction with at least one infrared heating means, said crucible consisting essentially of walls and a bottom element of non-contamination heat resistant materials and a plurality of non-volatile infrared absorbing rods, baffles or projections of the same or different materials arranged at an angle of 90° or less to the horizontal.
Claim 13
Dependent Claim
64 words
A crucible for vacuum coating one or more vaporizable inorganic photoconductive materials in conjunction with at least one infrared heating means, said crucible consisting essentially of walls and a bottom element of non-contamination heat resistant materials and a plurality of non-volatile infrared absorbing rods, baffles or projections of the same or different materials arranged at an angle of 90° or less to the horizontal.
Claim 14
Dependent Claim
24 words
The crucible of claim 10 containing one or more infrared absorbing baffles attached in a general vertical position with respect to the bottom element.
Claim 15
Dependent Claim
23 words
The crucible of claim 10 wherein the rods, baffles or projections comprise one or more of quartz, nickel, stainless steel or ceramic materials.
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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) | 1980-03-28 | 1980-09-27 | 1981-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-03-28 | 1984-09-27 | 1985-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-03-28 | 1988-09-27 | 1989-03-29 | $7700.00 | Window Closed / Lapsed |