Patent US3842488A successfully refreshed from Google Patents.
US3842488A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for inlaying poured metal in wood
Assignee: Individual
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Filing: 1973-07-02
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Granted: 1974-10-22
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Expires: 1993-07-02
Abstract
Abstract A process for inlaying by pouring molten metal directly into a wood cavity without visibly charring or burning the outer wood surface. The process consisting essentially of the steps of routing out the desired design in a wood surface, providing a heat resistant and heat absorbent material in contact with the wood surface adjacent the design, pouring a liquid metal into the design formed in the wood so that metal fills the design to an elevation slightly above the final surface, removing the heat resistant and heat absorbent material, and sanding the wood surface and the raised metal until both metal and wood are at the same elevation.
Inventors
- 👤 B Mitchell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:36
CPC Classifications
B; B22; B22D; B22D25/00; B22D25/02; B22D19/00; Y; Y10; Y10S; Y10S29/00; Y10S29/03; Y10T; Y10T29/00; Y10T29/49; Y10T29/4998; Y10T29/49982; Y10T29/49984; Y10T29/49988; Y10T29/49989; Y10T428/00; Y10T428/22
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
132 words
A process for inlaying molten metal in a prepared but uncoated wood surface cavity consisting of: a. forming a cavity in the surface of a wood member; b. placing a quantity of RTV material outside said cavity and against the wood surface adjacent said cavity sufficient to prevent contact of molten metal with said wood surface and having sufficient thickness to rapidly absorb enough heat to prevent charring or burning of the surface of said wOod, said RTV material being capable of withstanding temperatures well in excess of 700* F; c. pouring molten metal having a pour temperature of approximately 700* F. or less into said cavity and permitting said metal to cool and solidify; and d. sanding said wood and metal and wood surface until both are at the same elevation.
Claim 2
Dependent Claim
132 words
A process for inlaying molten metal in a prepared but uncoated wood surface cavity consisting of: a. forming a cavity in the surface of a wood member; b. placing a quantity of RTV material outside said cavity and against the wood surface adjacent said cavity sufficient to prevent contact of molten metal with said wood surface and having sufficient thickness to rapidly absorb enough heat to prevent charring or burning of the surface of said wOod, said RTV material being capable of withstanding temperatures well in excess of 700* F; c. pouring molten metal having a pour temperature of approximately 700* F. or less into said cavity and permitting said metal to cool and solidify; and d. sanding said wood and metal and wood surface until both are at the same elevation.
Claim 3
Dependent Claim
19 words
A process as described in claim 1 wherein said metal is a material selected from the white metals group.
Claim 4
Dependent Claim
36 words
A process as described in claim 1 consisting of: a. subjecting said completed assembly to a temperature of about 32* F. to cause shrinkage cracks in said metal; and b. filling said cracks with molten metal.
Claim 5
Dependent Claim
47 words
A process as described in claim 1 consisting of: a. coating the surface of said wood surface adjacent said cavity with RTV material in liquid form; b. curing said RTV material until in a solid form; and c. removing said RTV material in said step of sanding.
Claim 6
Dependent Claim
81 words
A process as described in claim 1 consisting of: a. preparing a cured reusable RTV member for overlaying said cavity; b. forming a plurality of openings in said cured RTV member for pouring metal therethrough, said openings being formed for registration with said cavity; c. placing said RTV member in registration with said surface of said wood member for excluding metal from entering between said matched surfaces and covering said cavity; and d. removing said RTV member after said metal solidifies.
Claim 7
Dependent Claim
68 words
A process as described in claim 5 consisting of: a. preparing a second reusable RTV member having a bottom surface formed for close fitting registration with the top surface of said first RTV member, and said lower surface of said second member being formed with grooves forming a passage for said metal from said opening in said second RTV member to said openings in said first RTV member.
Claim 8
Dependent Claim
41 words
A process as described in claim 6 consisting of: a. means clamping said assembly of said wood member, and said first and second RTV members together; and b. rotating said assembly during the pouring of said molten metal into said cavity.
Claim 9
Dependent Claim
34 words
A process as described in claim 6 consisting of: a. forming a mirror image depression in the bottom surface of said first RTV member permitting an excess of metal to form above said cavity.
Claim 10
Dependent Claim
68 words
A process as described in claim 8 consisting of: a. forming air sump reservoirs in said first RTV member by forming a depression in the bottom surface of said first RTV member and a channel communicating between said air sump reservoirs and said cavity in said wood; and b. permitting said compressed and displaced air from said cavity in said wood member to enter said air sump reservoirs.
Claim 11
Dependent Claim
74 words
A process as described in claim 5 consisting of: a. placing a metal member in close fitting registration against the RTV surface opposite to that surface in contact with said wood member; said metal member being formed with a cup shaped reservoir formed as a cavity in the surface in contact with said RTV member and channels formed in said metal member connecting said cup shaped reservoir and said openings in said RTV member.
Claim 12
Dependent Claim
71 words
A process as described in claim 1 consisting of the steps of: a. preparing a precast metal design; b. placing said precast metal design within said cavity so that portions of said precast design will be visible after said molten metal is inserted into said cavity; and c. placing said precast design in said cavity so that it will be surrounded and affixed to said wood member by said molten metal.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-21 | 1978-04-22 | 1978-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-21 | 1982-04-22 | 1982-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-21 | 1986-04-22 | 1986-10-22 | $7700.00 | Window Closed / Lapsed |