US3693229A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Canned transistor-ic lead bender
Assignee: Collins Radio Co
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Filing: 1970-12-16
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Granted: 1972-09-26
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Expires: 1990-12-16
Abstract
Abstract A lead bending tool for uniform tight forming of leads about a canned circuit can for upside down mounting of the canned circuit on a planar circuit board. The tool includes a canned circuit holding die member and a relatively moveable tool lead bending assembly with a conical surfaced member for engaging and radially deflecting leads, and a cylindrical die wire bending member that receives the conical surfaced member in a telescoping action during lead bending and that with continued lead bending movement moves into radially aligned overlap about a die annular rim of the canned circuit holding die member in completing a lead bend forming stroke.
Inventors
- 👤 Donald H Daebler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:16
CPC Classifications
H; H05; H05K; H05K13/00; H05K13/02; H05K13/023; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/5313; Y10T29/53174; Y10T29/53183
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
241 words
In a canned circuit lead bending tool for facilitating the upside down mounting of canned circuit units on planar circuit boards and in other circuit environments using such upside down mountings: a canned circuit unit holding die with a center canned circuit unit receiving recess for receiving canned circuit units with leads extending outward and away from said canned circuit unit holding die; said canned circuit unit holding die including a surrounding annular rim about said center canned circuit unit receiving recess; a canned circuit lead bending tool assembly including a conical surfaced lead engaging tool member, and a cylindrical wire bending die member with a wire bending annular rim about said conical surfaced lead engaging tool member and supporting said conical surfaced lead engaging tool member for telescoping movement thereof within said cylindrical wire bending die member; means mounting said canned circuit lead bending tool assembly in alignment with said Canned circuit unit holding die; and means for guided aligned movement of said canned circuit lead bending tool assembly toward and away from said canned circuit unit holding die; travel limiting means limiting movement of said conical surfaced lead engaging tool member toward said canned circuit unit holding die; resilient means in said canned circuit lead bending tool assembly exerting force on and through said conical surfaced lead engaging tool member; and actuating means for repeated canned circuit lead bending cycles of operation of the canned circuit lead bending tool.
Claim 2
Dependent Claim
241 words
In a canned circuit lead bending tool for facilitating the upside down mounting of canned circuit units on planar circuit boards and in other circuit environments using such upside down mountings: a canned circuit unit holding die with a center canned circuit unit receiving recess for receiving canned circuit units with leads extending outward and away from said canned circuit unit holding die; said canned circuit unit holding die including a surrounding annular rim about said center canned circuit unit receiving recess; a canned circuit lead bending tool assembly including a conical surfaced lead engaging tool member, and a cylindrical wire bending die member with a wire bending annular rim about said conical surfaced lead engaging tool member and supporting said conical surfaced lead engaging tool member for telescoping movement thereof within said cylindrical wire bending die member; means mounting said canned circuit lead bending tool assembly in alignment with said Canned circuit unit holding die; and means for guided aligned movement of said canned circuit lead bending tool assembly toward and away from said canned circuit unit holding die; travel limiting means limiting movement of said conical surfaced lead engaging tool member toward said canned circuit unit holding die; resilient means in said canned circuit lead bending tool assembly exerting force on and through said conical surfaced lead engaging tool member; and actuating means for repeated canned circuit lead bending cycles of operation of the canned circuit lead bending tool.
Claim 3
Dependent Claim
240 words
In a canned circuit lead bending tool for facilitating the upside down mounting of canned circuit units on planar circuit boards and in other circuit environments using such upside down mountings: a canned circuit unit holding bottom die with a center canned circuit unit receiving recess for receiving upside down oriented canned circuit units; said bottom die including a surrounding elevated annular rim about said center canned circuit unit receiving recess; bottom die mounting means; a downward moveable upper canned circuit lead bending tool assembly including a conical surfaced lead engaging tool member, and a cylindrical wire bending die member with a wire bending annular rim about said conical surfaced lead engaging tool member and supporting said conical surfaced lead engaging tool member for telescoping movement thereof within said cylindrical wire bending die member; frame means connected to said bottom die mounting means and mounting said downward moveable upper canned circuit lead bending tool assembly in alignment with said bottom die and including guide bearing means for guided aligned movement of said upper tool assembly toward and away from said bottom die; travel limit means limiting movement of said conical surfaced lead engaging tool member toward said bottom die; resilient means in said upper tool assembly exerting force on and through said conical surfaced lead engaging tool member; and upper tool assembly actuating means for repeated canned circuit lead bending cycles of operation of the canned circuit lead bending tool.
Claim 4
Dependent Claim
240 words
In a canned circuit lead bending tool for facilitating the upside down mounting of canned circuit units on planar circuit boards and in other circuit environments using such upside down mountings: a canned circuit unit holding bottom die with a center canned circuit unit receiving recess for receiving upside down oriented canned circuit units; said bottom die including a surrounding elevated annular rim about said center canned circuit unit receiving recess; bottom die mounting means; a downward moveable upper canned circuit lead bending tool assembly including a conical surfaced lead engaging tool member, and a cylindrical wire bending die member with a wire bending annular rim about said conical surfaced lead engaging tool member and supporting said conical surfaced lead engaging tool member for telescoping movement thereof within said cylindrical wire bending die member; frame means connected to said bottom die mounting means and mounting said downward moveable upper canned circuit lead bending tool assembly in alignment with said bottom die and including guide bearing means for guided aligned movement of said upper tool assembly toward and away from said bottom die; travel limit means limiting movement of said conical surfaced lead engaging tool member toward said bottom die; resilient means in said upper tool assembly exerting force on and through said conical surfaced lead engaging tool member; and upper tool assembly actuating means for repeated canned circuit lead bending cycles of operation of the canned circuit lead bending tool.
Claim 5
Dependent Claim
57 words
The canned circuit lead bending tool of claim 2, wherein said conical surfaced lead engaging tool member includes, a truncated conical surface, a cylindrical shank, and a center flat bottom surface; and said travel limiting means is engagement of said center flat bottom surface with the body of a canned circuit unit held by said bottom die.
Claim 6
Dependent Claim
36 words
The canned circuit lead bending tool of claim 3, wherein said center flat bottom surface is on an extension from the center bottom of said truncated conical surface of said conical surfaced lead engaging tool member.
Claim 7
Dependent Claim
70 words
The canned circuit lead bending tool of claim 3, wherein said surrounding elevated annular rim about said center canned circuit unit receiving recess is of sufficient height more than the thickness of canned circuit unit can bodies seated in said receiving recess that leads form bent down over said surrounding elevated annular rim do not make contact with the can of the canned circuit unit being lead tool bent processed.
Claim 8
Dependent Claim
82 words
The canned circuit lead bending tool of claim 5, wherein said cylindrical wire bending die member has an internal diameter greater than the outside diameter of the surrounding annular rim of said canned circuit unit holding die; and that, with continued lead bending movement of said canned circuit lead bending tool assembly and said cylindrical wire bending die member said wire bending annular rim moves into radially aligned overlap about said elevated annular rim of said canned circuit unit holding bottom die.
Claim 9
Dependent Claim
33 words
The canned circuit lead bending tool of claim 6, wherein said resilient means in said upper canned circuit lead bending tool assembly is resiliently compressible spring means confined within said upper tool assembly.
Claim 10
Dependent Claim
31 words
The canned circuit lead bending tool of claim 7, wherein resilient spring return means for upper tool assembly lead bending cycle return interconNects said upper tool assembly and said frame means.
Claim 11
Dependent Claim
28 words
The canned circuit lead bending tool of claim 7, wherein canned circuit lead bent processed unit eject means is included with said canned circuit unit holding bottom die.
Claim 12
Dependent Claim
48 words
The canned circuit lead bending tool of claim 9, wherein said eject means includes an eject pin slidably contained in a hole extended to said center canned circuit unit receiving recess in said bottom die; and eject pin actuating movement means mounted on said bottom die mounting means.
Claim 13
Dependent Claim
32 words
The canned circuit lead bending tool of claim 10, wherein said eject pin actuating movement means is a lever pivotally mounted by a pivot pin structure on said bottom die mounting means.
Claim 14
Dependent Claim
35 words
The canned circuit lead bending tool of claim 11, wherein said bottom die mounting means includes a bottom plate, a mounting base for said bottom die, and alignment base to plate adjustable position fastening means.
Claim 15
Dependent Claim
28 words
The canned circuit lead bending tool of claim 11, wherein said upper tool assembly actuating means comprises a handle mounted to said upper tool assembly for manual manipulation.
Claim 16
Dependent Claim
58 words
The canned circuit lead bending tool of claim 13, wherein said frame means includes an upper tool assembly mounting plate; said guide bearing means is a bearing material sleeve positioned in an opening of said upper tool assembly mounting plate; and with a cylindrical tube of the upper tool assembly a sliding fit in said bearing material sleeve.
Claim 17
Dependent Claim
80 words
The canned circuit lead bending tool of claim 14, wherein stop means is provided for said conical surfaced lead engaging tool member in the form of a center pin fastened to the top of said conical surfaced tool member; said center pin extends through said upper tool assembly; and position limit means fastened to said center pin engageable with said upper tool assembly limiting downward movement of said conical surfaced lead engaging tool member relative to said upper tool assembly.
Claim 18
Dependent Claim
51 words
The canned circuit lead bending tool of claim 15, wherein two of said tools are mounted in the same frame mounting assembly; with manually manipulated handles directed toward each other; and with eject pin levers directed toward each other for simultaneous tool actuation and simultaneous canned circuit eject from the tools.
Claim 19
Dependent Claim
77 words
The canned circuit lead bending tool of claim 15, wherein canned circuit unit body tool engaging force limiting means includes a bracket extension above said upper plate; extension of said center pin to and through an opening in said bracket extension; and resilient means engaging said bracket extension and said center pin exerting downward movement resistive force on said center pin as the center pin and the conical surfaced tool member approach their operative lower limit position.
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) | 1975-09-26 | 1976-03-27 | 1976-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-26 | 1980-03-27 | 1980-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-26 | 1984-03-27 | 1984-09-26 | $7700.00 | Window Closed / Lapsed |