US3904405A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sliding seal parts and process of making
Assignee: Ametek Inc
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Filing: 1973-02-02
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Granted: 1975-09-09
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Expires: 1993-02-02
Abstract
Abstract A sliding seal part and method of making by use of coated carbon filaments or particles with aluminum, the coated particles being subjected to heat and pressure to form the seal part.
Inventors
- 👤 Robert A Russell
- 👤 Irving J Hess
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:59
CPC Classifications
F; F01; F01C; F01C19/00; F01C19/005
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
65 words
THE PROCESS OF PRODUCING SILIDING SEAL PART MEANS COMPRISING THE STEPS OF ADHERINGLY PLATING DESCRETE CARBON ELEMENTS WITH ALUMINUM, THEN CONSOLIDATING SAID PLATED ELEMENTS INTO SLIDING SEAL PART MEANS BY PRESSURE AND HEAT, WHEREIN THE PLATING IS CARRIED OUT BY ELECTRODEPOSITION FROM AN ETHERAL BATH CONTAINING ANHYDROUS ALUMINUM CHLORIDE AND A METAL HYDRIDE SELECTED FROM THE GROUP CONSISTING OF LITHIUM HYDRIDE AND LITHIUM ALUMINUM HYDRIDE.
Claim 2
Dependent Claim
65 words
THE PROCESS OF PRODUCING SILIDING SEAL PART MEANS COMPRISING THE STEPS OF ADHERINGLY PLATING DESCRETE CARBON ELEMENTS WITH ALUMINUM, THEN CONSOLIDATING SAID PLATED ELEMENTS INTO SLIDING SEAL PART MEANS BY PRESSURE AND HEAT, WHEREIN THE PLATING IS CARRIED OUT BY ELECTRODEPOSITION FROM AN ETHERAL BATH CONTAINING ANHYDROUS ALUMINUM CHLORIDE AND A METAL HYDRIDE SELECTED FROM THE GROUP CONSISTING OF LITHIUM HYDRIDE AND LITHIUM ALUMINUM HYDRIDE.
Claim 3
Dependent Claim
81 words
The process of producing sliding seal part means comprising the steps of adheringly plating discrete carbon elements with aluminum, then consolidating said plated elements into sliding seal part means by pressure and heat, wherein the plating is carried out by electrodeposition from an ethereal bath containing anhydrous aluminum chloride and a metal hydride and wherein the ethereal bath is selected from the group consisting of ethyl ether, ethyl n-butyl ether, anisole, phenetole, diphenyl ether and mixtures of ethyl and butyl ethers.
Claim 4
Dependent Claim
81 words
The process of producing sliding seal part means comprising the steps of adheringly plating discrete carbon elements with aluminum, then consolidating said plated elements into sliding seal part means by pressure and heat, wherein the plating is carried out by electrodeposition from an ethereal bath containing anhydrous aluminum chloride and a metal hydride and wherein the ethereal bath is selected from the group consisting of ethyl ether, ethyl n-butyl ether, anisole, phenetole, diphenyl ether and mixtures of ethyl and butyl ethers.
Claim 5
Dependent Claim
23 words
The process of producing sliding metal seal part means as claimed in claim 1 wherein the discrete carbon elements are vitreous carbon particles.
Claim 6
Dependent Claim
23 words
The process of producing sliding metal seal part means as claimed in claim 1 wherein the discrete carbon elements are calcined anthracite particles.
Claim 7
Dependent Claim
22 words
The process of producing sliding seal part mEans as claimed in claim 2, wherein the discrete carbon elements are vitreous carbon particles.
Claim 8
Dependent Claim
22 words
The process of producing sliding seal part means as claimed in claim 2, wherein the discrete carbon elements are calcined anthracite particles.
References Cited (Backward Citations)
US3550247A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-09-08 | 1979-03-10 | 1979-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-08 | 1983-03-10 | 1983-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-08 | 1987-03-10 | 1987-09-09 | $7700.00 | Window Closed / Lapsed |