US4675990A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blade fuse manufacturing method
Assignee: Parker Intangibles LLC
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Filing: 1984-11-09
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Granted: 1987-06-30
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Expires: 2004-11-09
Abstract
Abstract A blade fuse includes parallel blades (12 and 14) secured in a body (16). A fusible link (42) welded to the blades is located in a cavity (20) of the body that is covered by a window (61). The blade fuses are assembled by blanking the fusible element from a ribbon (90) and translating it into a fuse subassembly (64). Tabs (50 and 52) secure the fusible element in the subassembly (64) until it is spot welded to blades 12 and 14. The window (61) is then blanked and translated to cover cavity (20) and secured by ultrasonic welding. A connector strip (76) is then blanked from between blades (12 and 14) to provide the blade fuse.
Inventors
- 👤 Frank J. Viola
- 👤 Erwin L. Schaub
- 👤 Lawrence H. Burke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:59
CPC Classifications
H; H01; H01H; H01H85/00; H01H85/02; H01H85/04; H01H85/041; H01H85/0411; H01H85/0415; H01H85/0417; H01H11/00; H01H11/0056; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49107
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
82 words
A method for assembling blade fuses, said method comprising: blanking a fuse link connected to a carrier strip from a ribbon of rolled metal and translating the fuse link to a molded subassembly as the fuse link is severed from the carrier strip; bonding the fuse link to the molded subassembly; blanking a window from a strip of material and translating the window into an opening in the molded subassembly; and bonding the window to the molded subassembly to produce a fuse.
Claim 2
Independent Claim
82 words
A method for assembling blade fuses, said method comprising: blanking a fuse link connected to a carrier strip from a ribbon of rolled metal and translating the fuse link to a molded subassembly as the fuse link is severed from the carrier strip; bonding the fuse link to the molded subassembly; blanking a window from a strip of material and translating the window into an opening in the molded subassembly; and bonding the window to the molded subassembly to produce a fuse.
Claim 3
Dependent Claim
31 words
The method of claim 1 wherein the window is blanked from a strip by a punch and received in the opening of the molded subassembly in one stroke of the punch.
Claim 4
Dependent Claim
31 words
The method of claim 1 wherein the blades of the molded subassemblies are connected by a connector strip transversely positioned between the blades and provide a means for indexing the subassemblies.
Claim 5
Independent Claim
48 words
The method of claims 1, 2 or 3, wherein the blades of adjacent subassemblies are joined end-to-end such that the blades act as a carrier strip for the subassemblies, said method further comprising: separating the blades of adjacent fuses after the windows are bonded to the molded subassemblies.
Claim 6
Independent Claim
68 words
A method for assembling blade fuses, said method comprising: blanking a fuse link connected to a carrier strip from a ribbon of rolled metal and translating the fuse link to a molded subassembly; welding the fuse link to the molded subassembly; blanking a window from a strip of material and translating the window into an opening in the molded subassembly; and bonding the window to the molded subassembly.
Claim 7
Independent Claim
68 words
A method for assembling blade fuses, said method comprising: blanking a fuse link connected to a carrier strip from a ribbon of rolled metal and translating the fuse link to a molded subassembly; welding the fuse link to the molded subassembly; blanking a window from a strip of material and translating the window into an opening in the molded subassembly; and bonding the window to the molded subassembly.
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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) | 1990-06-29 | 1990-12-29 | 1991-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-06-29 | 1994-12-29 | 1995-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-06-29 | 1998-12-29 | 1999-06-30 | $7700.00 | Window Closed / Lapsed |