Patent US3648337A successfully refreshed from Google Patents.
US3648337A
Expired / Lapsed
US
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Encapsulating of electronic components
Assignee: Duracell Inc USA
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Filing: 1970-08-24
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Granted: 1972-03-14
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Expires: 1990-08-24
Abstract
Abstract The open ends of thermoplastic containers encapsulating electronic components are closed with a compatible plastic material, the materials being sealed by ultrasonic welding utilizing a specially designed energy director.
Inventors
- 👤 John B Greskamp
- 👤 William J Evans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:03
CPC Classifications
H; H01; H01G; H01G2/00; H01G2/10; H01G2/103; B; B29; B29C; B29C65/00; B29C65/02; B29C65/08; B29C66/00; B29C66/01; B29C66/05; B29C66/20; B29C66/23; B29C66/232; B29C66/302; B29C66/3022; B29C66/30223; B29C66/50; B29C66/51; B29C66/54; B29C66/542; B29C66/70; B29C66/73; B29C66/739; B29C66/7392; B29C66/73921; B29C66/80; B29C66/83; B29C66/832; B29C66/8322; H01G9/00; H01G9/004; H01G9/08; H01G9/10; B29C66/10; B29C66/12; B29C66/122; B29C66/1222; B29C66/1224; B29C66/71; B29L; B29L2031/00; B29L2031/34; B29L2031/3406; B29L2031/712; B29L2031/7146; H01M; H01M50/00; H01M50/10; H01M50/147; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y10; Y10S; Y10S220/00; Y10S220/31; Y10T; Y10T29/00; Y10T29/43; Y10T29/435; Y10T29/49; Y10T29/49002; Y10T29/49108; Y10T29/4911
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
154 words
A method of encapsulating a preformed electronic component body which comprises preforming an open-end thermoplastic container member substantially equivalent in shape to the electronic component to be encased, placing said preformed body into said container member, providing a thermoplastic end closure member, at least one of said members having at least one energy director thereon positioned for engagement with the other member; placing said end closure member over said open end to with said energy director engaging the other of said members for closing said container member, applying an ultrasonic vibration to one of said members to set up an ultrasonic wave path traveling through at least a portion of said members and through said energy director to release heat at the joint between said end closure member and said container member whereby said end closure member and said container member integrally bond together to form a single unitary container encapsulating said component body.
Claim 2
Independent Claim
154 words
A method of encapsulating a preformed electronic component body which comprises preforming an open-end thermoplastic container member substantially equivalent in shape to the electronic component to be encased, placing said preformed body into said container member, providing a thermoplastic end closure member, at least one of said members having at least one energy director thereon positioned for engagement with the other member; placing said end closure member over said open end to with said energy director engaging the other of said members for closing said container member, applying an ultrasonic vibration to one of said members to set up an ultrasonic wave path traveling through at least a portion of said members and through said energy director to release heat at the joint between said end closure member and said container member whereby said end closure member and said container member integrally bond together to form a single unitary container encapsulating said component body.
Claim 3
Dependent Claim
39 words
A method of encapsulating a preformed electronic component body according to claim 1 wherein said container member and end closure member are fabricated from thermoplastic material taken from the class consisting of polypropylene, polyamide, polystyrene, polycarbonate and polyacetate resins.
Claim 4
Dependent Claim
35 words
A method according to claim 1 in which said end closure member comprises means for aiding the placement of said end closure member into engagement with the open end of said container member during bonding.
Claim 5
Dependent Claim
146 words
In a method for encapsulating a capacitor body having a foil sheet interwound with an absorbent material forming a convolutely wound capacitor body, said body being impregnated with a liquid electrolyte and terminal wires extending from said body, an encapsulating container substantially equivalent in shape to said body and electrical terminals electrically connected to said terminal wires, said container being fabricated of thermoplastic material in two sections; the improvement comprising: providing at least one energy director on one of said sections and mating said sections together to form said container, applying an ultrasonic vibration to the one of said sections having an energy directory for setting up an ultrasonic wave path travelling through said section into said energy director to release heat at the joint formed by mating said sections together, whereby said sections are integrally bonded together into a sinGle unitary container encapsulating said body.
Claim 6
Dependent Claim
146 words
In a method for encapsulating a capacitor body having a foil sheet interwound with an absorbent material forming a convolutely wound capacitor body, said body being impregnated with a liquid electrolyte and terminal wires extending from said body, an encapsulating container substantially equivalent in shape to said body and electrical terminals electrically connected to said terminal wires, said container being fabricated of thermoplastic material in two sections; the improvement comprising: providing at least one energy director on one of said sections and mating said sections together to form said container, applying an ultrasonic vibration to the one of said sections having an energy directory for setting up an ultrasonic wave path travelling through said section into said energy director to release heat at the joint formed by mating said sections together, whereby said sections are integrally bonded together into a sinGle unitary container encapsulating said body.
Claim 7
Dependent Claim
33 words
In a method of encapsulating a capacitor body according to claim 4 wherein said sections are fabricated of thermoplastic material taken from the class consisting of polypropylene, polyamide, polystyrene, polycarbonate, and polyacetate resins.
Claim 8
Dependent Claim
30 words
In a method of encapsulating a capacitor body according to claim 4 wherein one of said sections comprises a container to aid engagement of said sections preceding and during bonding.
Claim 9
Dependent Claim
22 words
A method according to claim 6 in which one of said section comprises means for mounting said unitary container in a chassis.
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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) | 1975-03-14 | 1975-09-13 | 1976-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-14 | 1979-09-13 | 1980-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-14 | 1983-09-13 | 1984-03-14 | $7700.00 | Window Closed / Lapsed |