Patent US4392641A successfully refreshed from Google Patents.
US4392641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alignment tool
Assignee: Individual
•
Filing: 1981-09-17
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Granted: 1983-07-12
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Expires: 2001-09-17
Abstract
Abstract A tool for use in preparing two members to be welded to one another has a body provided with legs adapted to straddle a gap between the two members and a bridge joining corresponding ends of the legs. The bridge has an elongate slot therein through which extends a drawbar that terminates at one end in a hook which is capable of underlying and engaging the lower surface of only one of such members. The drawbar is adjustable to cause the hook to move toward the bridge and thereby effect relative adjustment of the confronting edges of the two members. The drawbar preferably carries a gauge which may be used to ascertain the relative positions of the lower surfaces of the two members.
Inventors
- 👤 Timothy C. Dearman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:53
CPC Classifications
B; B23; B23K; B23K37/00; B23K37/04; B23K37/0408
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
190 words
A welding tool for use in positioning in predetermined locations spaced apart, confronting edges of two members to be welded together, said tool comprising a body having two legs adapted to straddle the space between said edges and a bridge joining said legs, said bridge having an opening therein extending from adjacent the middle of said bridge toward one of said legs and said opening terminating closer to said one leg than to the other of said legs; a drawbar slidably extending through said opening, said drawbar terminating at one end in a laterally extending foot of such width as to pass through the space between said edges and of such length as to engage a surface of a single one of said members adjacent such space, said opening in said bridge having a length greater than the thickness of said drawbar; and means carried by said drawbar for moving said drawbar relatively to said body in a direction to enable said foot to engage such surface of said one of said members and displace such member relatively to the other of said members in the direction of said bridge.
Claim 2
Dependent Claim
190 words
A welding tool for use in positioning in predetermined locations spaced apart, confronting edges of two members to be welded together, said tool comprising a body having two legs adapted to straddle the space between said edges and a bridge joining said legs, said bridge having an opening therein extending from adjacent the middle of said bridge toward one of said legs and said opening terminating closer to said one leg than to the other of said legs; a drawbar slidably extending through said opening, said drawbar terminating at one end in a laterally extending foot of such width as to pass through the space between said edges and of such length as to engage a surface of a single one of said members adjacent such space, said opening in said bridge having a length greater than the thickness of said drawbar; and means carried by said drawbar for moving said drawbar relatively to said body in a direction to enable said foot to engage such surface of said one of said members and displace such member relatively to the other of said members in the direction of said bridge.
Claim 3
Dependent Claim
27 words
A tool according to claim 1 wherein said bridge is joined to one of said legs along a curvature and wherein said opening extends into said curvature.
Claim 4
Dependent Claim
39 words
A tool according to claim 1 wherein said legs are free at corresponding ends and extend from said free ends toward and join said bridge, the juncture of one of said legs with said bridge extending along a curvature.
Claim 5
Dependent Claim
25 words
A tool according to claim 1 wherein said drawbar has a cross-sectional size and configuration such as to disable it from rotating within said opening.
Claim 6
Dependent Claim
40 words
A tool according to claim 1 including a gauge carried by said drawbar and terminating at one end in a finger, said finger extending in a direction opposite said foot to engage a surface of the other of said members.
Claim 7
Dependent Claim
19 words
A tool according to claim 5 including means carried by said drawbar and said gauge for calibrating the latter.
Claim 8
Dependent Claim
182 words
A welding tool for use in positioning in predetermined locations spaced apart, confronting edges of two members to be welded together, said tool comprising a body having legs adapted to straddle the space between said edges and a bridge joining said legs, said bridge having an opening therein; a drawbar slidably extending through said opening and having a portion thereof located between said legs; a foot separate from said drawbar and of such width as to pass through the space between said edges and of such length as to engage a surface of a single one of said members adjacent such space; means removably securing said foot to said drawbar; and means carried by said drawbar for moving said drawbar relatively to said body in a direction to enable said foot to engage such surface of said one of said members and displace such member relatively to the other of said members in the direction of said bridge, said securing means comprising an elongate portion projecting from said foot toward said drawbar and terminating in a finger removably fitted into said drawbar.
Claim 9
Dependent Claim
182 words
A welding tool for use in positioning in predetermined locations spaced apart, confronting edges of two members to be welded together, said tool comprising a body having legs adapted to straddle the space between said edges and a bridge joining said legs, said bridge having an opening therein; a drawbar slidably extending through said opening and having a portion thereof located between said legs; a foot separate from said drawbar and of such width as to pass through the space between said edges and of such length as to engage a surface of a single one of said members adjacent such space; means removably securing said foot to said drawbar; and means carried by said drawbar for moving said drawbar relatively to said body in a direction to enable said foot to engage such surface of said one of said members and displace such member relatively to the other of said members in the direction of said bridge, said securing means comprising an elongate portion projecting from said foot toward said drawbar and terminating in a finger removably fitted into said drawbar.
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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) | 1986-07-11 | 1987-01-10 | 1987-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-07-11 | 1991-01-10 | 1991-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-07-11 | 1995-01-10 | 1995-07-12 | $7700.00 | Window Closed / Lapsed |