US3851371A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatically operated tool
Assignee: Signode Corp
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Filing: 1972-12-27
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Granted: 1974-12-03
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Expires: 1992-12-27
Abstract
Abstract A pneumatic clip tool for clinching clips about wires. The tool is configurated to minimize the likelihood of jamming and is designed to speed the clearing of jams. A fixed position clinching jaw below the driver is quickly moved out of position to provide access to the driver assembly from below. The jaws are L-shaped to butt on closing and have steps and serrations at their line of juncture, thereby to minimize jamming of a clip in the jaw and driver assembly when the tool is in use. A supplemental retracting force is selectively provided when the usual retracting piston and cylinder is ineffective to return the driving piston to an inactive position to ready it for a new cycle of operation. The magazine and follower are proportioned so that the last few clips are not fed, to minimize tumbling and jams which occur for that reason. The tool also includes an antibackup assembly to prevent the rearward movement of clips fed to the driver, thereby eliminating the possibility of tumbling for that reason.
Inventors
- 👤 L Plunkett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:14
CPC Classifications
B; B25; B25B; B25B27/00; B25B27/14; B25B27/146; H; H01; H01R; H01R43/00; H01R43/04; H01R43/042; H01R43/0427; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/5313; Y10T29/532; Y10T29/53209; Y10T29/53213; Y10T29/53222; Y10T29/53226; Y10T29/53478; Y10T29/53487; Y10T29/53513; Y10T29/53709; Y10T29/53783
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
194 words
A pneumatically operated clip tool comprising: a casing defining a first driving cylinder and a second retracting cylinder; a driving piston reciprocably mounted in said driving cylinder; a retracting piston reciprocably mounted in said retracting cylinder; means for providing driving fluid to said driving cylinder above said driving piston and for normally providing retracting fluid to said retracting cylinder below said retracting piston; a clip driver means operatively connected to said driving piston for driving a clip, means operatively connecting said driving and retracting pistons for conjoint movement in a first driving direction and in a second retracting direction; a clinching anvil disposed beneath said driver means, said clinching anvil comprising a fixedly positioned clinching jaw member mounted on said casing, and release means for readily releasing said clinching jaw member from its fixed position, thereby to provide free and full access from below said driver means; and manually operable valve means mounted on said casing for selectively introducing retracting fluid to said driving cylinder below said driving piston to assist in retracting said driver means and said retracting piston when said retracting fluid, piston and cylinder are ineffective to retract said driver means.
Claim 2
Dependent Claim
194 words
A pneumatically operated clip tool comprising: a casing defining a first driving cylinder and a second retracting cylinder; a driving piston reciprocably mounted in said driving cylinder; a retracting piston reciprocably mounted in said retracting cylinder; means for providing driving fluid to said driving cylinder above said driving piston and for normally providing retracting fluid to said retracting cylinder below said retracting piston; a clip driver means operatively connected to said driving piston for driving a clip, means operatively connecting said driving and retracting pistons for conjoint movement in a first driving direction and in a second retracting direction; a clinching anvil disposed beneath said driver means, said clinching anvil comprising a fixedly positioned clinching jaw member mounted on said casing, and release means for readily releasing said clinching jaw member from its fixed position, thereby to provide free and full access from below said driver means; and manually operable valve means mounted on said casing for selectively introducing retracting fluid to said driving cylinder below said driving piston to assist in retracting said driver means and said retracting piston when said retracting fluid, piston and cylinder are ineffective to retract said driver means.
Claim 3
Dependent Claim
107 words
A clip tool in accordance with claim 1 wherein said clinching anvil comprises two generally L-shaped clinching jaw members, one being said fixedly positioned jaw member and the other being a member movable toward said fixedly positioned member to butt against said fixedly positioned member to form a closed bottom anvil section and away from said fixedly positioned member to provide a space between said members, said movable jaw member being attached to a linkage means which cooperates with said clip driver, whereby when said driving piston is moved in said first direction, said movable member and said driver move together to drive and clinch a clip.
Claim 4
Dependent Claim
30 words
A clip tool in accordance with claim 2 wherein the confronting butting edges of said L-shaped jaw members are correspondingly serrated and mesh to form said closed bottom anvil section.
Claim 5
Dependent Claim
82 words
A clip tool in accordance with claim 2 wherein said driver defines a tongue confronting said movable jaw member and the confronting surface of said movable jaw member defines a groove receiving said tongue, thereby to prevent the entry of portions of a clip to be driven between said confronting surfaces as said driver drives a clip toward said fixedly positioned clinching jaw member, said tongue protruding from said driver thereby to direct said portions of a clip inwardly to facilitate clinching.
Claim 6
Dependent Claim
61 words
A clip tool in accordance with claim 2 wherein said L-shaped jaw members each defines an upwardly facing step positioned adjacent the juncture of said members when they are in their closed bottom anvil position to guide clip edges across the juncture of said jaw members without striking the edges of said members as a said clip is driven and clinched.
Claim 7
Dependent Claim
33 words
A clip tool in accordance with claim 2 in which said driving piston moves in a direction which is generally normal to the direction in which said clip driver is mounted to reciprocate.
Claim 8
Dependent Claim
165 words
A clip tool in accordance with claim 2 further including: a magazine, said magazine being secured to said casing and being positioned with a clip discharge end adjacent a feed opening in said casing, said magazine being adapted to feed a ribbon of U-shaped clips attached leg to leg into said feed opening to a clip driver blade, means for preventing clips fed into said feed opening from moving backwardly through said feed opening to said discharge end, said means comprising an anti-backup assembly, said anti-backup assembly comprising a link and means for resiliently biasing said link into a first upper clip leg engaging position, said link extending upwardly into the path of clips positioned in said magazine and being adapted to be resiliently biased to a second retracted position as a clip is moved from said discharge end through said feed opening and to resiliently return to said first upper position to act against a leg of a clip to prevent its backward movement.
Claim 9
Dependent Claim
75 words
A clip tool in accordance with claim 7 wherein said magazine includes a follower for feeding clips toward said feed opening, said follower and magazine being so proportioned that said follower cannot feed all of the clips in the magazine through said feed opening thereby to leave several clips in said magazine, the clips thereby serving to prevent tumbling of other clips fed into said feed opening to be driven by said clip driver blade.
Claim 10
Dependent Claim
103 words
A pneumatically operated fastener tool comprising: a casing defining a driving cylinder and a driving piston reciprocably mounted in said cylinder for movement along a given horizontal axis and driven by a fluid means, a fastener driver means movable with said piston, a rigid fluid tube connected to said casing at a point substantially in line with the centroid of said tool and including hanger means for suspending said fastener tool in a horizontal orientation, said fluid tube adapted to be placed in communication with said cylinder when said tool is actuated, and comprising the sole passage of driving fluid to said tool.
Claim 11
Dependent Claim
103 words
A pneumatically operated fastener tool comprising: a casing defining a driving cylinder and a driving piston reciprocably mounted in said cylinder for movement along a given horizontal axis and driven by a fluid means, a fastener driver means movable with said piston, a rigid fluid tube connected to said casing at a point substantially in line with the centroid of said tool and including hanger means for suspending said fastener tool in a horizontal orientation, said fluid tube adapted to be placed in communication with said cylinder when said tool is actuated, and comprising the sole passage of driving fluid to said tool.
Claim 12
Dependent Claim
30 words
A pneumatically operated fasteNer tool in accordance with claim 9 wherein said tool is pivotally connected to said fluid tube, whereby said tool may be rotated in said vertical plane.
Claim 13
Dependent Claim
62 words
A pneumatically operated fastener tool in accordance with claim 10 wherein said tool defines a bore traversing the tool for receiving a leg of said fluid tube from either side, said leg being retractably retained in said bore and being rotatable therewithin, thereby to pivot said tool with respect to said fluid tube, said driving fluid passage being defined by said leg.
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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) | 1977-12-02 | 1978-06-03 | 1978-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-02 | 1982-06-03 | 1982-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-02 | 1986-06-03 | 1986-12-03 | $7700.00 | Window Closed / Lapsed |