Patent US3575569A successfully refreshed from Google Patents.
US3575569A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for welding wire leads to the terminals of electrical components
Assignee: AT&T Inc
•
Filing: 1969-02-06
•
Granted: 1971-04-20
•
Expires: 1989-02-06
Abstract
Abstract An automatic lead welding apparatus includes an article (solid electrolytic capacitor) carrying fixture mounted on a movable carriage, a welding head, an article detector, a carriage position detector, and a lead fabrication and transfer mechanism. Solid electrolytic capacitors are resiliently supported within the carrying fixture with anode wires projecting in cantilevered fashion. The carrying fixture is moved past the welding head where the detectors effect stoppage of the fixture successively to interpose each projecting anode wires within the welding head between a pair of relatively movable welding electrodes. The lead fabrication mechanism feeds, forms, and cuts a lead wire from a wire supply. The transfer mechanism grips and positions the formed lead under the interposed anode wire at which time the welding electrodes are successively operated to flex, clamp, and weld a cantilevered anode wire to a formed lead.
Inventors
- 👤 Henry D Mitchell Jr
- 👤 Albert Q Wooten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:37
CPC Classifications
B; B23; B23K; B23K11/00; B23K11/002; B23K11/0026; H; H01; H01R; H01R43/00; H01R43/02
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
73 words
In an apparatus for welding a first element onto a second element: means for yieldably supporting the first element at a spaced distance from said second element; means for moving the first element against the effect of said yieldable means into engagement with said second eLement; and means rendered effective upon movement of the first element into engagement with the second element for applying energy to the engaged elements to weld them together.
Claim 2
Dependent Claim
73 words
In an apparatus for welding a first element onto a second element: means for yieldably supporting the first element at a spaced distance from said second element; means for moving the first element against the effect of said yieldable means into engagement with said second eLement; and means rendered effective upon movement of the first element into engagement with the second element for applying energy to the engaged elements to weld them together.
Claim 3
Dependent Claim
67 words
In an apparatus for welding a first element onto a second element as recited in claim 1, wherein said yieldable support means includes: a first resilient pad; a second resilient pad spaced from said first resilient pad for defining a space for receiving the end of the first element; and means for clamping said resilient pads together to grip the end of the first element yieldably therebetween.
Claim 4
Dependent Claim
52 words
In an apparatus for welding a first element onto a second element as recited in claim 1, wherein: said first element moving means is a movable welding electrode; and said energy applying means includes said first movable welding electrode and a second movable welding electrode opposing and aligned with said first electrode.
Claim 5
Dependent Claim
148 words
In an apparatus for welding a second axial lead to the end of an article having a first axial lead at its opposite end: means for resiliently clamping the first axial lead of the article to support the article; a pair of spaced, relatively movable welding electrodes for welding the second lead to the unsupported end of the article; means for positioning said supporting means to position the unsupported end of the article between said electrodes; means for positioning the second lead between said electrodes and aligned with the unsupported end of the article; means for imparting relative movement to said electrodes to urge the unsupported end of the article into contact with the second lead; and means rendered operative following contact of the unsupported end of the article with the second lead to apply welding energy to said electrodes to weld the second lead to the article.
Claim 6
Dependent Claim
148 words
In an apparatus for welding a second axial lead to the end of an article having a first axial lead at its opposite end: means for resiliently clamping the first axial lead of the article to support the article; a pair of spaced, relatively movable welding electrodes for welding the second lead to the unsupported end of the article; means for positioning said supporting means to position the unsupported end of the article between said electrodes; means for positioning the second lead between said electrodes and aligned with the unsupported end of the article; means for imparting relative movement to said electrodes to urge the unsupported end of the article into contact with the second lead; and means rendered operative following contact of the unsupported end of the article with the second lead to apply welding energy to said electrodes to weld the second lead to the article.
Claim 7
Dependent Claim
154 words
In an apparatus for welding parts onto articles: a pair of welding electrodes mounted for relative movement to move opposed ends thereof together; an elongated carriage mounted for movement transverse to the direction of movement of the electrodes; a first elongated resilient support mounted along the length of said carriage; a second elongated resilient support mounted on said carriage cooperating with said first resilient support for gripping a plurality of articles and positioning each article at an acute angle with respect to the direction of movement of said electrodes; means for incrementally advancing the carriage to position each gripped article between said electrodes; means operated following each advance of the carriage for advancing a part onto the article positioned between the electrodes; and means for imparting relative movement between said electrodes to move the opposed ends to engage the article and part to pivot the article through said angle against the first resilient support.
Claim 8
Dependent Claim
154 words
In an apparatus for welding parts onto articles: a pair of welding electrodes mounted for relative movement to move opposed ends thereof together; an elongated carriage mounted for movement transverse to the direction of movement of the electrodes; a first elongated resilient support mounted along the length of said carriage; a second elongated resilient support mounted on said carriage cooperating with said first resilient support for gripping a plurality of articles and positioning each article at an acute angle with respect to the direction of movement of said electrodes; means for incrementally advancing the carriage to position each gripped article between said electrodes; means operated following each advance of the carriage for advancing a part onto the article positioned between the electrodes; and means for imparting relative movement between said electrodes to move the opposed ends to engage the article and part to pivot the article through said angle against the first resilient support.
Claim 9
Dependent Claim
39 words
In an apparatus as defined in claim 5: a third resilient support mounted on said carriage and spaced from said articles gripped by said first and second resilient supports for engaging and cushioning each article pivoted by said electrodes.
Claim 10
Dependent Claim
169 words
In an apparatus for welding parts onto articles as recited in claim 5, wherein said incremental advancing means includes: means for continuously urging said carriage to move each gripped article between said electrodes; a plurality of pins mounted on said carriage, each movable from a rest position to an activated position by a gripped article for indicating the presence of an article gripped by said resilient supports; a plurality of spaced projections extending from said carriage, said projections being equal in number to the total number of movable pins for indicating the positions of the total number of articles capable of being gripped by said resilient supports; means positioned to detect an activated pin associated with a gripped article moved between said electrodes; means positioned to detect a projection on said carriage Aligned with said electrodes; and means rendered operative upon actuation of both said activated pin detecting means and said projection detector means for interrupting said continuous urging means to stop and position an article between said electrodes.
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) | 1974-04-19 | 1974-10-19 | 1975-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-19 | 1978-10-19 | 1979-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-19 | 1982-10-19 | 1983-04-20 | $7700.00 | Window Closed / Lapsed |