US3754310A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making an electrical assembly fastened with thermoplastic eyelet
Assignee: Honeywell International Inc
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Filing: 1971-07-29
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Granted: 1973-08-28
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Expires: 1991-07-29
Abstract
Abstract The assembly includes at least two pieces of material, each having a hole therein aligned with the hole in the other piece of material, and a plastic eyelet positioned in the holes and having a radially extending flange on one end thereof which engages one piece of material and a rolled over rim at the other end thereof which engages the other piece of material to hold the pieces of material together. The method includes the steps of: assembling the pieces of material with a plastic sleeve positioned in the holes, the sleeve having the radially extending flange on one end with the other end of the sleeve extending beyond one piece of material; holding the flange against one piece of material while raising the temperature of the extending end of the sleeve above its softening temperature; and simultaneously shaping at least a part of the extending end of the sleeve into the rolled over rim which extends radially from the extending end of the sleeve and in abutment with the other piece of material.
Inventors
- 👤 G Shea
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:03
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/56; B29C65/60; B29C65/601; B29C65/602; B29C65/567; B29C65/568; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/20; B29C66/21; B29C66/40; B29C66/41; B29C66/80; B29C66/81; B29C66/814; B29C66/8141; B29C66/81411; B29C66/81421; B29C66/81422; B29C66/81423; B29C66/81427; B29C66/81429; B29C66/81431; B29C66/83; B29C66/832; B29C66/8322; F; F16; F16B; F16B19/00; F16B19/04; F16B19/08; F16B19/10; H; H05; H05K; H05K3/00; H05K3/22; H05K3/28; H05K3/281; B29C65/02; B29C65/08; B29L; B29L2031/00; B29L2031/709; B29L2031/7096; B29L2031/71; H05K2201/00; H05K2201/01; H05K2201/0104; H05K2201/0129; H05K2201/09; H05K2201/09009; H05K2201/091; H05K2201/10; H05K2201/10431; H05K2201/10598; Y; Y10; Y10T; Y10T29/00; Y10T29/43; Y10T29/435; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49075; Y10T29/49078; Y10T29/49826; Y10T29/49908; Y10T29/49915; Y10T29/4992; Y10T29/53; Y10T29/53709; Y10T29/5377
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
286 words
A method for making an electrical assembly including first, second and third pieces of insulating material with first and second pieces of electrically conductive material positioned between said first and second pieces of insulating material and said second and third pieces of insulating material, respectively, said pieces of electrically conductive material being provided with connector tabs by which electrical connections may be made thereto, each of said pieces of insulating material and conducting material having a circular hole therein each of said holes having substantially the same diameter, said method including the steps of: bringing the pieces of material together to form a laminate having alternate layers of insulating and conductive material with the holes in all said pieces of material aligned; inserting into said aligned holes an insulating thermoplastic sleeve having abutment means extending radially outwardly from one end of said sleeve for engaging said first piece of insulating material, said sleeve having substantially the diameter of the aligned holes, said sleeve having a length greater than the combined thickness of said pieces of material so that the other end of said sleeve extends outwardly from said third piece of insulating material when said abutment means engages said first piece of insulating material; holding said abutment means against said first piece of insulating material while raising the temperature of said extending end portion of said sleeve above its softening temperature; and simultaneously shaping at least a part of said extending end of said sleeve into a projection extending radially from said sleeve and in abutment with said third piece of insulating material, thereby fastening said pieces together with said electrically conductive pieces being insulated from each other and said connector tabs available for connection thereto.
Claim 2
Independent Claim
286 words
A method for making an electrical assembly including first, second and third pieces of insulating material with first and second pieces of electrically conductive material positioned between said first and second pieces of insulating material and said second and third pieces of insulating material, respectively, said pieces of electrically conductive material being provided with connector tabs by which electrical connections may be made thereto, each of said pieces of insulating material and conducting material having a circular hole therein each of said holes having substantially the same diameter, said method including the steps of: bringing the pieces of material together to form a laminate having alternate layers of insulating and conductive material with the holes in all said pieces of material aligned; inserting into said aligned holes an insulating thermoplastic sleeve having abutment means extending radially outwardly from one end of said sleeve for engaging said first piece of insulating material, said sleeve having substantially the diameter of the aligned holes, said sleeve having a length greater than the combined thickness of said pieces of material so that the other end of said sleeve extends outwardly from said third piece of insulating material when said abutment means engages said first piece of insulating material; holding said abutment means against said first piece of insulating material while raising the temperature of said extending end portion of said sleeve above its softening temperature; and simultaneously shaping at least a part of said extending end of said sleeve into a projection extending radially from said sleeve and in abutment with said third piece of insulating material, thereby fastening said pieces together with said electrically conductive pieces being insulated from each other and said connector tabs available for connection thereto.
Claim 3
Dependent Claim
103 words
The method of claim 1 wherein said assembly further includes at least one additional piece of insulating material and at least one additional piece of electrically conductive material, the number of additional pieces of insulating material being equal to the number of additional pieces of conductive material, with respective pieces of conducting material positioned between respective adjacent pieces of insulating material and said sleeve has a length greater than the combined thickness of the laminate formed by said pieces of insulating material and said pieces of conducting material so that said other end of said sleeve extends beyond one side of said laminate.
Claim 4
Dependent Claim
53 words
The method of claim 1 wherein the temperature of the extEnding end portion is raised and the simultaneous shaping thereof is accomplished by bringing a shaping element axially against said extending end portion of said sleeve, and vibrating said shaping element at ultrasonic frequency sufficient to heat and shape the extending end portion.
Claim 5
Dependent Claim
103 words
The method of claim 3 wherein said assembly further includes at least one additional piece of insulating material and at least one additional piece of electrically conductive material, the number of additional pieces of insulating material being equal to the number of additional pieces of conductive material, with respective pieces of conductive material positioned between respective adjacent pieces of insulating material and said sleeve has a length greater than the combined thickness of the laminate formed by said pieces of insulating material and said pieces of conductive material so that said other end of said sleeve extends beyond one side of said laminate.
Claim 6
Dependent Claim
15 words
The method of claim 3 wherein said ultrasonic frequency is about 20,000 cycles per second.
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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) | 1976-08-27 | 1977-02-26 | 1977-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-27 | 1981-02-26 | 1981-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-27 | 1985-02-26 | 1985-08-28 | $7700.00 | Window Closed / Lapsed |