US3893223A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High frequency vibratory spot welding of sheet metal
Assignee: Branson Ultrasonics Corp
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Filing: 1973-11-29
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Granted: 1975-07-08
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Expires: 1993-11-29
Abstract
Abstract This disclosure relates to spot welding of sheet metal members by the use of high frequency vibratory energy. One of the members to be welded is provided with weld locations which are vibration isolated to inhibit propagation of vibratory energy between adjacent weld locations during the weld cycle and thereby prevent the rupture of an adjacent and previously made weld.
Inventors
- 👤 Bruce L Mims
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:18
CPC Classifications
B; B23; B23K; B23K20/00; B23K20/10
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
127 words
The method of spot welding two sheet metal members by vibratory energy comprising: providing one of said members with means for causing said member to have spaced locations which are substantially vibration isolated from each other with respect to high frequency vibratory energy propagated from one such location along the plane of said member toward an adjacent location; disposing said members in overlapping position for causing said locations of said one member to be in contact with the other member, and while providing a compressive force between a selected one of said locations and the overlapping portion of the other member, applying to said selected location high frequency vibratory energy having a major component substantially perpendicular to the direction of said force to cause a spot weld.
Claim 2
Independent Claim
127 words
The method of spot welding two sheet metal members by vibratory energy comprising: providing one of said members with means for causing said member to have spaced locations which are substantially vibration isolated from each other with respect to high frequency vibratory energy propagated from one such location along the plane of said member toward an adjacent location; disposing said members in overlapping position for causing said locations of said one member to be in contact with the other member, and while providing a compressive force between a selected one of said locations and the overlapping portion of the other member, applying to said selected location high frequency vibratory energy having a major component substantially perpendicular to the direction of said force to cause a spot weld.
Claim 3
Dependent Claim
25 words
A method of spot welding two sheet metal members as set forth in claim 1, said locations comprising partially separated portions of said one member.
Claim 4
Dependent Claim
23 words
A method of spot welding two sheet metal members as set forth in claim 2, said means comprising apertures in said one member.
Claim 5
Dependent Claim
25 words
A method of spot welding two sheet metal members as set forth in claim 3, said apertures extending substantially to one edge of said member.
Claim 6
Dependent Claim
19 words
A method of spot welding two sheet metal members as set forth in claim 2, said means comprising slots.
Claim 7
Dependent Claim
24 words
A method of spot welding two sheet metal memberS as set forth in claim 2, said means comprising a series of closely spaced holes.
Claim 8
Dependent Claim
20 words
A method of spot welding two sheet metal members as set forth in claim 2, said means comprising triangular cutouts.
Claim 9
Dependent Claim
29 words
A method of spot welding two sheet metal members as set forth in claim 1, said vibratory energy being in the frequency range from 1 kHz to 100 kHz.
Claim 10
Dependent Claim
23 words
A method of spot welding two sheet metal members as set forth in claim 1, said means comprising corrugations in said one member.
Claim 11
Dependent Claim
22 words
A method of spot welding two sheet metal members as set forth in claim 1, said members being of the same metal.
Claim 12
Dependent Claim
20 words
A method of spot welding two sheet metal members as set forth in claim 1, said members being dissimilar metal.
Claim 13
Independent Claim
130 words
The method of spot welding two sheet metal members by vibratory energy comprising: providing one of said members with means for causing said member to have spaced locations which are substantially vibration isolated from each other with respect to high frequency vibratory energy propagated from one such location along the plane of said member toward an adjacent location; disposing said members in overlapping position for causing said locations of said one member to be in contact with the other member, and while providing a compressive force between selected ones of said locations and the overlapping portion of the other member, applying to said selected locations high frequency vibratory energy having a major component substantially parallel to the plane of said one member to cause spot welds at said selected locations.
Claim 14
Independent Claim
130 words
The method of spot welding two sheet metal members by vibratory energy comprising: providing one of said members with means for causing said member to have spaced locations which are substantially vibration isolated from each other with respect to high frequency vibratory energy propagated from one such location along the plane of said member toward an adjacent location; disposing said members in overlapping position for causing said locations of said one member to be in contact with the other member, and while providing a compressive force between selected ones of said locations and the overlapping portion of the other member, applying to said selected locations high frequency vibratory energy having a major component substantially parallel to the plane of said one member to cause spot welds at said selected locations.
Claim 15
Independent Claim
201 words
The method of spot welding two sheet metal members by vibratory energy comprising: providing one of said members with means for causing said one member to have along one edge spaced locations which are substantially vibration isolated from each other with respect to high frequency vibratory energy propagated from a selected first one of said locations along the plane of said member toward an adjacent second such location; disposing said members in overlapping position for causing said first location of said one member to be in contact with the other member; providing a compressive force between said first location and the overlapping portion of the other member; applying to said first location, while said force is applied, high frequency vibratory energy having a major component substantially perpendicular to the direction of said force to cause a first spot weld between said members; providing subsequently a compressive force between said second location and the overlapping portion of said other member, and applying to said second location, while said force is applied, high frequency vibratory energy having a major component substantially perpendicular to the direction of said force to cause a second spot weld between said members without disturbing said first spot weld.
Claim 16
Independent Claim
201 words
The method of spot welding two sheet metal members by vibratory energy comprising: providing one of said members with means for causing said one member to have along one edge spaced locations which are substantially vibration isolated from each other with respect to high frequency vibratory energy propagated from a selected first one of said locations along the plane of said member toward an adjacent second such location; disposing said members in overlapping position for causing said first location of said one member to be in contact with the other member; providing a compressive force between said first location and the overlapping portion of the other member; applying to said first location, while said force is applied, high frequency vibratory energy having a major component substantially perpendicular to the direction of said force to cause a first spot weld between said members; providing subsequently a compressive force between said second location and the overlapping portion of said other member, and applying to said second location, while said force is applied, high frequency vibratory energy having a major component substantially perpendicular to the direction of said force to cause a second spot weld between said members without disturbing said first spot weld.
References Cited (Backward Citations)
US3698075A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-07-07 | 1979-01-06 | 1979-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-07 | 1983-01-06 | 1983-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-07 | 1987-01-06 | 1987-07-08 | $7700.00 | Window Closed / Lapsed |