US3692069A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Component lead forming tool and method
Assignee: Ltv Electrosystems Inc
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Filing: 1970-12-29
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Granted: 1972-09-19
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Expires: 1990-12-29
Abstract
Abstract A tool and method for forming stress relieving loops in the axial leads of an electrical component. A wedge-shaped component holding block includes generally flat upper and lower surfaces having a plurality of transverse lead receiving grooves formed across the upper and lower surfaces and down the sides. The wedged shape of the block results in side wall grooves which vary in spacing to allow lead formation for different spacing of component mounting holes. A component is placed in a central slot in the block and the leads are first bent downwardly into properly spaced grooves. Then a fulcrum member, pivotally attached to the holder, is placed over the bent leads of the component, and the leads are then bent upwardly about overhanging edges of the fulcrum member to form a stress relieving loop in each of the leads.
Inventors
- 👤 Leo Clendennen
- 👤 Charlie P Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:57
CPC Classifications
H; H05; H05K; H05K13/00; H05K13/02; H05K13/023
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
219 words
A tool for bending a lead of an electrical component to form a stress relieving loop therein comprising: a wedge-shaped block having a central slot therein for receiving the body of a component having axial leads, said block having side walls which vary in spacing from one another to form a pair of bent component leads corresponding to various spacings of component mounting holes, said block further including a pair of detents near the wide end of the wedge which extend outwardly from opposite sides of the block; and a wedge-shaped fulcrum member adapted for engagement with said wedge-shaped block and having a spaced lip section which overhangs and engages the lead of a component having been bent about the edge of said block, said lip acting as a pivot point to bend the lead of the component away from the block edge and then perpendicular to the component axis to form a stress releiving loop about said lip section, said wedge-shaped fulcrum further including downwardly extending projections near the wide end having longitudinally extending slots therein for engagement with the detents to permit longitudinal movement of said fulcrum member with respect to said block member when said member overlies said block and insure a snug engagement of the overhanging lip section with the side wall of said block.
Claim 2
Dependent Claim
219 words
A tool for bending a lead of an electrical component to form a stress relieving loop therein comprising: a wedge-shaped block having a central slot therein for receiving the body of a component having axial leads, said block having side walls which vary in spacing from one another to form a pair of bent component leads corresponding to various spacings of component mounting holes, said block further including a pair of detents near the wide end of the wedge which extend outwardly from opposite sides of the block; and a wedge-shaped fulcrum member adapted for engagement with said wedge-shaped block and having a spaced lip section which overhangs and engages the lead of a component having been bent about the edge of said block, said lip acting as a pivot point to bend the lead of the component away from the block edge and then perpendicular to the component axis to form a stress releiving loop about said lip section, said wedge-shaped fulcrum further including downwardly extending projections near the wide end having longitudinally extending slots therein for engagement with the detents to permit longitudinal movement of said fulcrum member with respect to said block member when said member overlies said block and insure a snug engagement of the overhanging lip section with the side wall of said block.
Claim 3
Dependent Claim
47 words
A tool for bending the leads of electrical components as set forth in claim 1 wherein said block includes component receiving slots on both sides and wherein said detents are spring biased outwardly to allow pivotal attachment of said fulcrum member to either side of said block.
Claim 4
Dependent Claim
159 words
A tool for bending the levels of an axially leaded electrical component to form a thermal stress relieving loop therein comprising: a wedge-shaped block having a generally flat upper and lower surface and perpendicular side walls, said block including a central component receiving slot in the upper and lower surfaces, a plurality of lead receiving grooves transversely extending from said slots across the upper and lower surfaces and down the side walls, and a pair of spring biased detents mounted in the side walls near the wider end; and a wedge-shaped fulcrum member which includes downwardly extending projections near the wide end having longitudinally extending slots formed therein for engagement with the detents in said block to removably and pivotally attach said fulcrum member to said block, and downwardly extending lip sections along the edges of said member which overhang and engage the side walls of said block when said fulcrum member is pivoted closed to overlie said block.
Claim 5
Dependent Claim
159 words
A tool for bending the levels of an axially leaded electrical component to form a thermal stress relieving loop therein comprising: a wedge-shaped block having a generally flat upper and lower surface and perpendicular side walls, said block including a central component receiving slot in the upper and lower surfaces, a plurality of lead receiving grooves transversely extending from said slots across the upper and lower surfaces and down the side walls, and a pair of spring biased detents mounted in the side walls near the wider end; and a wedge-shaped fulcrum member which includes downwardly extending projections near the wide end having longitudinally extending slots formed therein for engagement with the detents in said block to removably and pivotally attach said fulcrum member to said block, and downwardly extending lip sections along the edges of said member which overhang and engage the side walls of said block when said fulcrum member is pivoted closed to overlie said block.
Claim 6
Dependent Claim
222 words
A tool for bending the leads of a component to form a stress relieving loop therein of the type which includes a wedge-shaped block having a central slot therein for receiving the body of a component having axial leads, and which has side walls about which component leads may be first bent at right angles to the component body, and said block further including a pair of detents near the wide end of the wedge which extend outwardly from opposite sides of the block, wherein the improvement comprises: a wedge-shaped fulcrum member including downwardly extending projections near the wide end having longitudinally extending slots therein for engagement with the detents to pivotally attach said fulcrum member to said block to permit longitudinal movement of the fulcrum member with respect to the block when said member overlies said block and insure a snug engagement of the overhanging lip section of the fulcrum with the edge section of the block, said fulcrum member adapted for engagement with said block and engaging the leads of a component having been bent about the edges of said slot, said lip sections acting as pivot points to bend the leads of the component away from the block edges and then perpendicular to the component axis to form a stress relieving loop about the edges of the lip section.
Claim 7
Dependent Claim
222 words
A tool for bending the leads of a component to form a stress relieving loop therein of the type which includes a wedge-shaped block having a central slot therein for receiving the body of a component having axial leads, and which has side walls about which component leads may be first bent at right angles to the component body, and said block further including a pair of detents near the wide end of the wedge which extend outwardly from opposite sides of the block, wherein the improvement comprises: a wedge-shaped fulcrum member including downwardly extending projections near the wide end having longitudinally extending slots therein for engagement with the detents to pivotally attach said fulcrum member to said block to permit longitudinal movement of the fulcrum member with respect to the block when said member overlies said block and insure a snug engagement of the overhanging lip section of the fulcrum with the edge section of the block, said fulcrum member adapted for engagement with said block and engaging the leads of a component having been bent about the edges of said slot, said lip sections acting as pivot points to bend the leads of the component away from the block edges and then perpendicular to the component axis to form a stress relieving loop about the edges of the lip section.
Claim 8
Dependent Claim
47 words
A tool for bending the leads of electrical components as set forth in claim 4 wherein said block includes component receiving slots on both sides and wherein said detents are spring biased outwardly to allow pivotal attachment of said fulcrum member to either side of said block.
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) | 1975-09-19 | 1976-03-20 | 1976-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-19 | 1980-03-20 | 1980-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-19 | 1984-03-20 | 1984-09-19 | $7700.00 | Window Closed / Lapsed |