US3655482A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bonding method and product
Assignee: Edo Corp
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Filing: 1969-12-23
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Granted: 1972-04-11
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Expires: 1989-12-23
Abstract
Abstract A process for adhering smooth mechanical surfaces via an intermediate adhesive of a predetermined thickness includes mixing spherical particles of a size comparable to the desired thickness with the adhesive. The adhesive-particle mixture is deposited between the surfaces and the adhesive cured, sufficient pressure being applied to effect only a single plane of the particles.
Inventors
- 👤 Sid I Schildkraut
- 👤 Albert L Yates
- 👤 Peter J Cohn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:12
CPC Classifications
C; C04; C04B; C04B37/00; C04B37/003; C04B37/005; B; B29; B29C; B29C65/00; B29C65/48; B29C65/4805; B29C65/483; B29C65/4865; B29C65/487; B29C65/4875; C04B35/00; C04B35/622; C04B35/626; C04B35/63; C04B35/632; C04B35/634; C04B35/63404; C04B35/63424; C04B35/63448; C04B35/63452; C04B2235/00; C04B2235/02; C04B2235/50; C04B2235/54; C04B2235/5418; C04B2235/5436; C04B2237/00; C04B2237/30; C04B2237/32; C04B2237/34; C04B2237/345; C04B2237/346; C04B2237/348; C04B2237/50; C04B2237/52; C04B2237/70; C04B2237/704
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
26 words
The method as in claim 1 wherein the said movement is continued until a plurality of individual particles are abutted on opposite sides by both surfaces.
Claim 2
Dependent Claim
14 words
The process as in claim 1 wherein the particles are approximately spherical in form.
Claim 3
Dependent Claim
50 words
The process as in claim 1 wherein the surfaces to be bonded are smooth surfaces of predetermined hardness which includes the step of forming a mixture of adhesive and particles of a uniform size approximating said thickness and of a hardness which is less than that of the said surfaces.
Claim 4
Dependent Claim
117 words
A process of bonding two smooth surfaces of piezoelectric materials with a layer of adhesive of uniform predetermined thickness comprising forming a mixture of adhesive having a predetermined modulus of elasticity when cured with particles of a uniform size approximating said thickness and of a modulus of elasticity approximating that of the cured adhesive, interposing said mixture between the opposed surfaces, moving the surfaces toward each other to eliminate stacking of the particles by re-distributing the particles in a single plane, continuing said movement until individual particles are abutted on opposite sides by both surfaces, thus limiting the movement of the two surfaces to a dimension substantially equal to the desired uniform predetermined thickness of the adhesive.
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) | 1975-04-11 | 1975-10-11 | 1976-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-11 | 1979-10-11 | 1980-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-11 | 1983-10-11 | 1984-04-11 | $7700.00 | Window Closed / Lapsed |