Patent US3765291A successfully refreshed from Google Patents.
US3765291A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tool gripping and guiding device for tool exchanger for punching and nibbling machines
Assignee: Individual
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Filing: 1971-07-23
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Granted: 1973-10-16
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Expires: 1991-07-23
Abstract
Abstract An apparatus for transferring a tool from a non-working position to a working position in punching machines or the like, wherein the means for transferring the tool comprises a fluid actuated member with tool gripping means disposed on the end thereof.
Inventors
- 👤 J Stenfeldt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:19
CPC Classifications
B; B21; B21D; B21D37/00; B21D37/14; B21D37/145; B23; B23Q; B23Q3/00; B23Q3/155; B23Q3/1556; B23Q3/15573; B23Q7/00; B23Q7/04; B23Q7/047; Y; Y10; Y10S; Y10S483/00; Y10S483/902; Y10T; Y10T83/00; Y10T83/869; Y10T83/8748; Y10T83/97
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
118 words
In combination with a machine tool having a tool guiding surface for guiding in operation a movable tool when same is in a working position wherein same may be moved by said machine tool, an apparatus for transferring said tool between a non-working position and said working position comprising: movable gripping means for releasably gripping said tool for moving same between said working position and said non-working position and having means coacting with said tool guiding surface for alternatively holding said tool in said working position and guiding same during movement by said machine tool; and transpecting means for moving said gripping means and to effect transfer of said tool between said non-working position and said working position.
Claim 2
Dependent Claim
118 words
In combination with a machine tool having a tool guiding surface for guiding in operation a movable tool when same is in a working position wherein same may be moved by said machine tool, an apparatus for transferring said tool between a non-working position and said working position comprising: movable gripping means for releasably gripping said tool for moving same between said working position and said non-working position and having means coacting with said tool guiding surface for alternatively holding said tool in said working position and guiding same during movement by said machine tool; and transpecting means for moving said gripping means and to effect transfer of said tool between said non-working position and said working position.
Claim 3
Dependent Claim
102 words
Apparatus according to claim 1 wherein said machine tool includes another guiding surface aligned with said first mentioned guiding surface; and including another movable gripping means for releasably gripping a stationary tool for moving same between a non-working position and a working position and coacting with said another guiding surface for holding said stationary tool in said working position when same cooperates with said movable tool for working on a workpiece during operation of the machine tool, and another transporting means for moving said another gripping means and to effect transfer of said tool between said non-working position and said working position.
Claim 4
Dependent Claim
53 words
An apparatus according to claim 2 including means on said movable tool defining a guiding key; and wherein said gripping means has Means therein defining a guiding keyway coacting in operation with said guiding key to guide said movable tool as same moves and for positioning said movable tool in said gripping means.
Claim 5
Dependent Claim
111 words
An apparatus according to claim 3 wherein said gripping means includes locking means for locking said movable tool therein comprising means in said guiding key defining a locking groove, means defining a bore in said gripping means, a slide member slidable in said bore between a locked position and an unlocked position and having an engaging portion engageable with said locking groove for locking said movable tool in said gripping means when said slide member is in said locked position, and slide moving means for selectively moving said slide member between said locked position and said unlocked position when said gripping means is in said working position or said non-working position.
Claim 6
Dependent Claim
41 words
An apparatus according to claim 2 including means on said stationary tool defining a key; and wherein said another gripping means has means therein defining a keyway engageable with said key for positioning said stationary tool in said another gripping means.
Claim 7
Dependent Claim
113 words
An apparatus according to claim 5 wherein said another gripping means includes locking means for locking said stationary tool therein comprising means in said key defining a locking groove, means defining a bore in said another gripping means, a slide member slidable in said bore between a locked position and an unlocked position and having an engaging portion engageable with said locking groove for locking said stationary tool in said another gripping means when said slide member is in said locked position, and slide moving means for selectively moving said slide member between said locked position and said unlocked position when said gripping means and said stationary tool are in said non-working position.
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) | 1976-10-15 | 1977-04-16 | 1977-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-15 | 1981-04-16 | 1981-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-15 | 1985-04-16 | 1985-10-16 | $7700.00 | Window Closed / Lapsed |