Patent US2373100A successfully refreshed from Google Patents.
Patent US4024008A successfully refreshed from Google Patents.
US4024008A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic to metal bonding method
Assignee: Honeywell Inc
•
Filing: 1976-09-07
•
Granted: 1977-05-17
•
Expires: 1996-09-07
Abstract
Abstract A method of bonding thermoplastic resins to metals. A cylindrical portion of a metal is coated with an uncured adhesive. A quantity of a thermoplastic resin is molded onto the adhesive substantially uniformly about that portion of the metal having adhesive thereon, and a restraining ring is placed about the exterior portion of the thermoplastic resin such that the inner diameter of the restraining ring is substantially equal to the desired exterior diameter of the thermoplastic. The restraining ring is made from nonmetallic material. Induction heating is then performed on the metal for a time sufficient to cure the adhesive.
Inventors
- 👤 Norman W. Gregornik
- 👤 Dennis R. Pickering
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:18
CPC Classifications
B; B29; B29C; B29C35/00; B29C35/02; B29C35/08; B29C43/00; B29C43/32; B29C45/00; B29C45/0053; B29C45/14; B29C45/14311; B29C70/00; B29C70/68; B29C70/74; F; F42; F42B; F42B14/00; F42B14/02; B29C35/0805; B29C2035/0811; B29K; B29K2705/00; B29K2715/00; B29K2715/006
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
75 words
A method of bonding thermoplastic resins to metal, comprising: coating a cylindrical portion of a metal with an uncured adhesive; molding a quantity of a thermoplastic resin onto said adhesive substantially uniformally about the portion of said metal; restraining said molded thermoplastic with a nonmetallic restraining ring having an inside diameter substantially equal to the desired exterior diameter of said thermoplastic resin; and induction heating said metal for a time sufficient to cure said adhesive.
Claim 2
Independent Claim
75 words
A method of bonding thermoplastic resins to metal, comprising: coating a cylindrical portion of a metal with an uncured adhesive; molding a quantity of a thermoplastic resin onto said adhesive substantially uniformally about the portion of said metal; restraining said molded thermoplastic with a nonmetallic restraining ring having an inside diameter substantially equal to the desired exterior diameter of said thermoplastic resin; and induction heating said metal for a time sufficient to cure said adhesive.
Claim 3
Dependent Claim
22 words
A method of claim 1 wherein said metal is selected from the group consisting of aluminum, iron, steel, copper and alloys thereof.
Claim 4
Dependent Claim
26 words
The method of claim 1 wherein said adhesive is a thermoplastic adhesive selected from the group consisting of polyurethanes, polyethylenes, polyamides, polysulfones, phenoxy adhesives, and polyolefines.
Claim 5
Dependent Claim
23 words
The method of claim 1 wherein said adhesive is a thermo-setting resin selected from the group consisting of epoxy, phenolic and polyruethane adhesives.
Claim 6
Dependent Claim
32 words
The method of claim 1 wherein said thermoplastic resin is injection molded onto said adhesive and comprises a resin selected from the group consisting of polyurethanes, polyethylenes, polypropylenes, polyamides, polyolefines and polysulfones.
Claim 7
Dependent Claim
24 words
The method of claim 1 wherein said thermoplastic resin is selected from the group of natural rubber, synthetic rubber, butyl rubber polychloroprene and polyisoprene.
Claim 8
Dependent Claim
28 words
The method of claim 1 wherein said restraining ring is selected from the group consisting of bakelite, glass, ceramic material, concrete, melamine, formaldehyde resins and urea formaldehyde resins.
Claim 9
Independent Claim
92 words
A method of mounting a thermoplastic rotating band on a metal projectile, comprising: coating a cylindrical portion of a projectile with an uncured adhesive; molding a sufficient quantity of thermoplastic resin on said adhesive to form a rotating band; restraining said band with a nonmetallic restraining ring having an inner diameter substantially equal to the desired exterior diameter of the rotating band; induction heating said projectile for a time sufficient to bond said thermoplastic to said projectile by curing said adhesive; and cooling said projectile to permit removal of said restraining ring.
Claim 10
Independent Claim
92 words
A method of mounting a thermoplastic rotating band on a metal projectile, comprising: coating a cylindrical portion of a projectile with an uncured adhesive; molding a sufficient quantity of thermoplastic resin on said adhesive to form a rotating band; restraining said band with a nonmetallic restraining ring having an inner diameter substantially equal to the desired exterior diameter of the rotating band; induction heating said projectile for a time sufficient to bond said thermoplastic to said projectile by curing said adhesive; and cooling said projectile to permit removal of said restraining ring.
Claim 11
Dependent Claim
22 words
A method of claim 8 wherein said metal is selected from the group consisting of aluminum, iron, steel, copper and alloys thereof.
Claim 12
Dependent Claim
26 words
The method of claim 8 wherein said adhesive is a thermoplastic adhesive selected from the group consisting of polyurethanes, polyethylenes, polyamides, polysulfones, phenoxy adhesives and polyolefines.
Claim 13
Dependent Claim
23 words
The method of claim 8 wherein said adhesive is a thermo-setting resin selected from the group consisting of epoxy, phenolic and polyurethane adhesives.
Claim 14
Dependent Claim
32 words
The method of claim 8 wherein said thermoplastic resin is injection molded onto said adhesive and comprises a resin selected from the group consisting of polyurethanes, polyethylenes, polypropylenes, polyamides, polyolefines and polysulfones.
Claim 15
Dependent Claim
24 words
The method of claim 8 wherein said thermoplastic resin is selected from the group of natural rubber, synthetic rubber, butyl rubber, polychloroprene and polyisoprene.
Claim 16
Dependent Claim
28 words
The method of claim 8 wherein said restraining ring is selected from the group consisting of bakelite, glass, ceramic material, concrete, melamine, formaldehyde resins and urea formaldehyde resins.
References Cited (Backward Citations)
US3695970A
Cited
US3788928A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-05-16 | 1980-11-15 | 1981-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-16 | 1984-11-15 | 1985-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-16 | 1988-11-15 | 1989-05-17 | $7700.00 | Window Closed / Lapsed |