US3777115A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for controlling electrode oscillation
Assignee: Astro ARC Co
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Filing: 1972-02-22
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Granted: 1973-12-04
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Expires: 1992-02-22
Abstract
Abstract A welding apparatus wherein the welding electrode is moved transversely in oscillating motion across the weld path, the electrode to be capable of dwelling at either the fore or aft point of maximum displacement of the transverse movement path, the voltage between the electrode and the workpiece is automatically maintained constant by means of an automatic voltage control mechanism.
Inventors
- 👤 G Kazlauskas
- 👤 K Vowell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:36
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/02; B23K9/028; B23K9/0282; B23K9/24; B23K9/28; B23K9/30
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
145 words
An apparatus for producing oscillatory movement transverse to the longitudinal path of movement of a welding electrode comprising: support means for retaining said electrode; actuating means connected to said support means, said actuating means including means for causing movement of said support means to result in transverse oscillatory movement of said electrode; movement producing means connected through a driving means to said actuating means; dwell producing means for causing a dwell in said oscillatory movement at a point of maximum displacement of said electrode; a motor assembly connected to said movement producing means, said motor assembly to operate said actuating means through said driving means; and said dwell producing means includes a photocell sensing arrangement which is connected to said motor assembly, said photocell sensing arrangement is connected to control means to effect non-transmitting of the torque of said motor assembly to said actuating means.
Claim 2
Independent Claim
145 words
An apparatus for producing oscillatory movement transverse to the longitudinal path of movement of a welding electrode comprising: support means for retaining said electrode; actuating means connected to said support means, said actuating means including means for causing movement of said support means to result in transverse oscillatory movement of said electrode; movement producing means connected through a driving means to said actuating means; dwell producing means for causing a dwell in said oscillatory movement at a point of maximum displacement of said electrode; a motor assembly connected to said movement producing means, said motor assembly to operate said actuating means through said driving means; and said dwell producing means includes a photocell sensing arrangement which is connected to said motor assembly, said photocell sensing arrangement is connected to control means to effect non-transmitting of the torque of said motor assembly to said actuating means.
Claim 3
Dependent Claim
38 words
An apparatus as defined in claim 1 wherein: said control means includes a clutch, said clutch connected between said motor assembly and said actuating means, said photocell sensing arrangement capable of disengaging said clutch thereby producing said dwell.
Claim 4
Dependent Claim
66 words
Apparatus as defined in claim 2 wherein: said control means of said dwell producing means including a timer aSsembly to control the length of dwell time, said timer assembly connected to said clutch, upon disengaging of said clutch said timer assembly being engaged, said timer assembly operates reengagement means to effect reengagement of said clutch after expiration of the dwell time established by said timer assembly.
Claim 5
Dependent Claim
109 words
Apparatus as defined in claim 3 wherein: said photocell sensing arrangement includes a first photocell and a second photocell, a light source, blocking means located between said light source and said first and second photocells to normally prevent light from being transmitted from said light source to said photocells, aperture means located within said blocking means, said aperture means to permit transmission of light from said light source to either of said photocells which activates said control means, said first photocell to control dwell of said electrode at one side of the electrode path with said second photocell to control dwell at the opposite side of the electrode path.
Claim 6
Dependent Claim
32 words
Apparatus as defined in claim 4 wherein: said timer assembly comprises a first timer operated through means by said first photocell and a second timer operated through means by said second photocell.
Claim 7
Dependent Claim
111 words
Apparatus as defined in claim 4 wherein: said blocking means comprises a rotating disc, said disc connected through means to said electrode, a complete rotation of said disc to be synchronous to a complete cycle of said oscillatory movement, said aperture means includes a pair of apertures diametrically located upon said disc, the radial spacing of said apertures upon said disc being different, only one of said apertures permitting light transmission between said light source and said first photocell during a complete revolution of said disc with only the other of said apertures permitting light transmission between said light source and said second photocell during a complete revolution of said disc.
Claim 8
Independent Claim
142 words
An apparatus for producing oscillatory movement transverse to the longitudinal path of movement of a welding electrode comprising: support means for retaining said electrode; actuating means connected to said support means, said actuating means including means for causing movement of said support means to result in transverse oscillatory movement of said electrode; movement producing means connected through a driving means to said actuating means; dwell producing means for causing a dwell in said oscillatory movement at a point of maximum displacement of said electrode; said movement producing means includes an external gear, an internal gear located about said external gear and in continuous engagement therewith, a motor assembly connected to said external gear, said external gear attached to said driving means, whereby rotational movement of said external gear is capable of causing lineal movement in a given direction of said driving means.
Claim 9
Independent Claim
142 words
An apparatus for producing oscillatory movement transverse to the longitudinal path of movement of a welding electrode comprising: support means for retaining said electrode; actuating means connected to said support means, said actuating means including means for causing movement of said support means to result in transverse oscillatory movement of said electrode; movement producing means connected through a driving means to said actuating means; dwell producing means for causing a dwell in said oscillatory movement at a point of maximum displacement of said electrode; said movement producing means includes an external gear, an internal gear located about said external gear and in continuous engagement therewith, a motor assembly connected to said external gear, said external gear attached to said driving means, whereby rotational movement of said external gear is capable of causing lineal movement in a given direction of said driving means.
Claim 10
Dependent Claim
89 words
Apparatus as defined in claim 7 wherein: said internal gear mounted within a housing, said internal gear being pivotal within said housing, a pin eccentrically mounted upon said external gear, said pin connected to said driving means, said pin movable substantially through a lineal path as said external gear rotates, pivoting of said internal gear also changes the position of said external gear thereby changing the angular position of said lineal path to said given direction of said driving means to thereby change the amplitude of said oscillatory movement.
Claim 11
Dependent Claim
24 words
Apparatus as defined in claim 8 including: lock means connected to said housing to fixedly position said internal gear at the established pivotable position.
Claim 12
Dependent Claim
68 words
Apparatus as defined in claim 8 including: a motor assembly connected to said movement producing means, said motor assembly to operate said actuating means through said driving means; and said dwell producing means including a photocell sensing arrangement which is connected to said motor assembly, said photocell sensing arrangement is connected to control means to effect non-transmitting of the torque of said motor assembly to said actuating means.
Claim 13
Dependent Claim
37 words
Apparatus as defined in claim 10 wherein: said control means includes a clutch, said clutch connected between said motor assembly and said actuating means, said photocell sensing arrangement capable of disengaging said clutch thereby producing said dwell.
Claim 14
Independent Claim
77 words
An apparatus for producing transverse oscillatory movement of a welding electrode comprising: support means for retaining said electrode; actuating means connected to said support means, said actuating means capable of causing movement of said support means to result in transverse oscillatory movement of said electrode; and movement producing means connected to said actuating means, said movement producing means including an external gear connected to said actuating means, said external gear in continuous engagement with an internal gear.
Claim 15
Independent Claim
77 words
An apparatus for producing transverse oscillatory movement of a welding electrode comprising: support means for retaining said electrode; actuating means connected to said support means, said actuating means capable of causing movement of said support means to result in transverse oscillatory movement of said electrode; and movement producing means connected to said actuating means, said movement producing means including an external gear connected to said actuating means, said external gear in continuous engagement with an internal gear.
Claim 16
Dependent Claim
30 words
Apparatus as defined in claim 12 wherein: said internal gear mounted within a housing, said internal gear pivotable within said housing to thereby change the amplitude of said oscillatory movement.
Claim 17
Dependent Claim
27 words
Apparatus as defined in claim 13 wherein: lock means connected to said housing to fixedly position said internal gear upon the pivotable position of such being established.
Claim 18
Dependent Claim
111 words
In an automatic welding apparatus having a welding electrode, said welding electrode to move longitudinally in a prescribed path to produce a weld bead upon a workpiece, said apparatus including: first means for causing transverse oscillatory movement of said electrodes; second means for causing a dwelling in said oscillatory movement at a point of maximum displacement a motor assembly connected to said first means for supplying input power to said first means; and said second means includes a photocell sensing arrangement which is connected to said motor assembly, said photocell sensing arrangement is connected to control means to effect non-transmitting of the torque of said motor assembly to said first means.
Claim 19
Dependent Claim
111 words
In an automatic welding apparatus having a welding electrode, said welding electrode to move longitudinally in a prescribed path to produce a weld bead upon a workpiece, said apparatus including: first means for causing transverse oscillatory movement of said electrodes; second means for causing a dwelling in said oscillatory movement at a point of maximum displacement a motor assembly connected to said first means for supplying input power to said first means; and said second means includes a photocell sensing arrangement which is connected to said motor assembly, said photocell sensing arrangement is connected to control means to effect non-transmitting of the torque of said motor assembly to said first means.
Claim 20
Dependent Claim
40 words
Apparatus as defined in claim 15 wherein: said control means includes a clutch, said clutch connected between said motor assembly andsaid first means, said photocell sensing arrangement capable of disengaging said clutch thereby producing said dwelling of said oscillatory movement.
Claim 21
Dependent Claim
64 words
Apparatus as defined in claim 16 wherein: said control means of said second means including a timer assembly to control the length of dwell time, said timer assembly connected to said clutch, upon disengaging of said clutch said timer assembly being engaged, said timer assembly operates reengagement means to effect reengagement of said clutch after expiration of the dwell time by said timer assembly.
Claim 22
Dependent Claim
110 words
Apparatus as defined in claim 17 wherein: said photocell sensing arrangement includes a first photocell and a second photocell, a light source, blocking means located between said light source and said first and second photocells to normally prevent light from being transmitted from said light source to said photocells, aperture means located within said blocking means, said aperture means to permit transmission of light from said light source to either of said photocells which activates said control means, said first photocell to control dwell of said electrode at one side of the electrode path with said second photocell to control the dwell at the opposite side of the electrode path.
Claim 23
Dependent Claim
112 words
Apparatus as defined in claim 18 wherein: said blocking means comprises a rotating disc, said disc connected through means to said electrode, a complete rotation of said disc to be synchronous to a complete cycle of said oscillatory movement, said aperture means includes a pair of apertures diametrically located upon said disc, the radial spacing of said apertures upon said disc being different, only one of said apertures permitting light transmission between said light source and said first photocell during a complete revolution of said disc with only the other of said apertures permiting light transmission between said light source and and said second photocell during a complete revolution of said disc.
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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) | 1976-12-03 | 1977-06-04 | 1977-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-03 | 1981-06-04 | 1981-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-03 | 1985-06-04 | 1985-12-04 | $7700.00 | Window Closed / Lapsed |