US3604476A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hook applying machine
Assignee: Standex International Corp
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Filing: 1969-11-03
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Granted: 1971-09-14
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Expires: 1989-11-03
Abstract
Abstract A pair of elongated, spaced wires are simultaneously advanced into positions where the free ends of the wires are disposed respectively between two pairs of welding electrodes. Both wires are severed at points spaced from the free ends thereof and the wires are bent to form hooks. An object, such as one edge of a wire rack, is also positioned between the pairs of welding electrodes, after which the electrodes are driven into engagement with the object and the free ends of the wire hooks to weld them to the object.
Inventors
- 👤 John W Black
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:31
CPC Classifications
B; B21; B21F; B21F1/00; B21F11/00; B21F15/00; B21F15/10; B21F23/00; B23; B23K; B23K11/00; B23K11/002
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
184 words
An apparatus for forming hooks from an elongated wire element and welding said hooks to an object, comprising: a pair of spaced-apart welding electrodes, one of said electrodes being movable toward and away from the other electrode; first drive means for moving said one electrode; wire-advancing means for moving said wire element intermittently lengthwise thereof along a line passing between said electrodes, such movement being terminated when the free end of the wire becomes aligned between said electrodes; wire-severing means disposed between and spaced from said pair of electrodes and said wire-advancing means; second drive means for actuating said wire-severing means; wire-bending means disposed between and spaced from said pair of electrodes and said wire-severing means for forming a hook from the end portion of the severed part of wire spaced from said pair of electrodes; third drive means for operating said bending means; and means synchronizing said first, second and third drive means whereby said object is welded to said free end of said wire while said wire is cut by said wire-severing means and said hook is formed by said bending means.
Claim 2
Independent Claim
184 words
An apparatus for forming hooks from an elongated wire element and welding said hooks to an object, comprising: a pair of spaced-apart welding electrodes, one of said electrodes being movable toward and away from the other electrode; first drive means for moving said one electrode; wire-advancing means for moving said wire element intermittently lengthwise thereof along a line passing between said electrodes, such movement being terminated when the free end of the wire becomes aligned between said electrodes; wire-severing means disposed between and spaced from said pair of electrodes and said wire-advancing means; second drive means for actuating said wire-severing means; wire-bending means disposed between and spaced from said pair of electrodes and said wire-severing means for forming a hook from the end portion of the severed part of wire spaced from said pair of electrodes; third drive means for operating said bending means; and means synchronizing said first, second and third drive means whereby said object is welded to said free end of said wire while said wire is cut by said wire-severing means and said hook is formed by said bending means.
Claim 3
Dependent Claim
193 words
An apparatus according to claim 1, including frame means having rail means extending along said line away from said electrodes; wherein said wire-advancing means comprises fixed clamp means attached to said rail means adjacent said wire-severing means on the opposite side from said electrodes and having first wire-gripping means releasably engageable with said wire along said line for positively opposing movement of said wire away from said wire-severing means and toward said fixed clamp means; movable clamp means slideably supported upon said rail means for movement toward and away from said fixed clamp means on the opposite side thereof from said severing means, said movable clamp means having second wire-gripping means releasably engageable with said wire along said line, said second gripping means positively preventing movement of said wire relative to said second clamp means in a direction toward said movable clamp means and away from said fixed clamp means, whereby movement of said movable clamp means toward said fixed clamp means advances wire through said fixed clamp means, and movement of said movable clamp means away from said fixed clamp means effects relative movement between said wire and said movable clamp means.
Claim 4
Dependent Claim
84 words
An apparatus according to claim 1, including rail means extending along said line away from said electrodes; wherein said wire-severing means comprises a shear block mounted upon said rail means; a guide adjacent said shear block for guiding said wire along said line; blade means reciprocably supported adjacent said shear block and cooperable therewith for cutting said wire; lever means engaged with said blade for effecting said reciprocable movement and wherein said second drive means is a power cylinder connected to said lever means.
Claim 5
Dependent Claim
148 words
An apparatus according to claim 1, including rail means extending along said line away from said electrodes; wherein said wire-bending means comprises circular means rotatably supported on said rail means for movement around an axis adjacent said line of said wire and transverse thereof; first block means mounted on said rail means and having a first surface adjacent and substantially parallel with said wire line; rod means coaxial with said circular member and extendable therefrom into a position above and adjacent said wire line; second block means mounted upon said circular means and having a second surface thereon movable with said circular means into a position opposed to, spaced from and at an acute angle with said first surface, whereby the portion of said wire severed by said severing means is bent around said rod means into a hook; means for retracting said rod means from said position.
Claim 6
Dependent Claim
41 words
An apparatus according to claim 1, wherein said first, second and third drive means are pressure fluid-actuated cylinders and said synchronizing means includes solenoid valves connected between a source of pressure fluid and said power cylinders for sequencing the operation thereof.
Claim 7
Independent Claim
141 words
A method for forming plural hooks and attaching them simultaneously to an object whereby said object can be supported, comprising the steps of: supporting said object in position between two spaced pairs of welding electrodes, one electrode of each pair being movable toward and away from the other; locating portions of a pair of elongated wire elements along a pair of substantially straight, parallel and spaced paths, each path passing between one of said pairs of eleCtrodes; intermittently advancing said wire elements along said paths; severing a part of each wire element from the remainder thereof near said electrodes between advancements of said wire elements and immediately thereafter bending said severed parts to form hooks; an simultaneously with said severing and bending, causing said electrodes to hold said severed parts of said wire elements against said objects and welding them together.
Claim 8
Independent Claim
141 words
A method for forming plural hooks and attaching them simultaneously to an object whereby said object can be supported, comprising the steps of: supporting said object in position between two spaced pairs of welding electrodes, one electrode of each pair being movable toward and away from the other; locating portions of a pair of elongated wire elements along a pair of substantially straight, parallel and spaced paths, each path passing between one of said pairs of eleCtrodes; intermittently advancing said wire elements along said paths; severing a part of each wire element from the remainder thereof near said electrodes between advancements of said wire elements and immediately thereafter bending said severed parts to form hooks; an simultaneously with said severing and bending, causing said electrodes to hold said severed parts of said wire elements against said objects and welding them together.
References Cited (Backward Citations)
US3045715A
Cited
US3200857A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-13 | 1975-03-15 | 1975-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-13 | 1979-03-15 | 1979-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-13 | 1983-03-15 | 1983-09-14 | $7700.00 | Window Closed / Lapsed |