Patent US3437927A successfully refreshed from Google Patents.
US3568908A
Expired / Lapsed
US
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Magazine and skip-off preventing mechanism for fluid actuated fastener driving machine
Assignee: VENICULUM INCORPORATED 1100 HICKS ROAD ROLLING MEADOWS IL A CORP OF
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Filing: 1968-10-10
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Granted: 1971-03-09
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Expires: 1988-10-10
Abstract
Abstract Improvements to a fluid-actuated fastener driving machine are shown. These include a magazine structure having a container for holding a plurality of fasteners, a stem within the container and a movable guide carried by the stem. A cover overlies the container and a cover ejecting member is connected to the stem. The guide is selectively connectable to the cover. Feed structure is operatively connected to the magazine and includes a track, a door overlying the track, a reciprocatingly movable first feed pawl within the track and a pair of auxiliary feed pawls springably connected to the door, spaced from the first feed pawl and at opposite sides thereof. A fastener ejecting channel is operatively connected with the track and has a holding member disposed therewithin. The member is movable out of the channel by impingement of a driven fastener thereupon.
Inventors
- 👤 I Walton Bader
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:19
CPC Classifications
B; B25; B25C; B25C1/00; B25C1/001; B25C1/003
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
73 words
A magazine structure for a fastener driving machine comprising a fastener holding container, a first hollow stem within said container, a rod pivotally movable within said stem having a prong at its'' lower portion, a cover underlying said fastener holding container having a second hollow stem portion adapted to fit about said first hollow stem portion and provided with a plurality of spaced recesses therewithin adapted to be selectively engaged by said prong.
Claim 2
Dependent Claim
73 words
A magazine structure for a fastener driving machine comprising a fastener holding container, a first hollow stem within said container, a rod pivotally movable within said stem having a prong at its'' lower portion, a cover underlying said fastener holding container having a second hollow stem portion adapted to fit about said first hollow stem portion and provided with a plurality of spaced recesses therewithin adapted to be selectively engaged by said prong.
Claim 3
Dependent Claim
37 words
A magazine structure as described in claim 1 including a spring means carried by said rod biasing said rod in engaged position with one of said recesses and handle means upon said rod at one end thereof.
Claim 4
Dependent Claim
18 words
A magazine structure as described in claim 2 including a cover ejecting member carried by said first-named stem.
Claim 5
Dependent Claim
40 words
A magazine structure as described in claim 3 said cover ejecting member including a pusher member carried by said rod and adapted to abut the stem portion of said cover and spring means biasing said pusher member aGainst said stem.
Claim 6
Dependent Claim
30 words
A magazine structure as described in claim 4 said first-named stem member provided with a hollow elongate slot therewithin, said pusher member having a projection disposed within said elongate slot.
Claim 7
Dependent Claim
62 words
A feed mechanism for a fastener driving machine comprising a fastener track, a pivotal openable door overlying said track, means for selectively retaining said door in open or closed position, first fastener feed means within said track, a pair of spaced feed pawls carried by said door having ratchet portions thereupon, and spring means upon said door connected to said feed pawls.
Claim 8
Dependent Claim
62 words
A feed mechanism for a fastener driving machine comprising a fastener track, a pivotal openable door overlying said track, means for selectively retaining said door in open or closed position, first fastener feed means within said track, a pair of spaced feed pawls carried by said door having ratchet portions thereupon, and spring means upon said door connected to said feed pawls.
Claim 9
Dependent Claim
16 words
A feed mechanism as described in claim 6 said spring means being a single leaf spring.
Claim 10
Dependent Claim
25 words
A feed mechanism as described in claim 7 including spring means connected to said door and said track and biasing said door into open position.
Claim 11
Dependent Claim
90 words
A structure as described in claim 1 including a feed mechanism adjacent said magazine, said feed mechanism comprising a fastener track, a pivotal openable door overlying said track, spring means connected to said door and to said track normally biasing said door into open position, first fastener feed means within said track, latch means carried by said door and said track, a pair of spaced feed pawls carried by said door having ratchet portions thereupon, and a single leaf spring carried by said door and connected to said feed pawls.
Claim 12
Dependent Claim
106 words
A structure as described in claim 9 including a drive improvement mechanism having, in combination, a drive channel provided with a lateral slot opening thereinto, a pivotally movable holding element within said channel and said lateral slot, said holding element being below the undriven position of a nail disposed within said drive channel, coil spring means secured to said feed mechanism and to said holding element normally maintaining said holding element in blocking position with respect to said nail, said holding element moving to unblocking position with respect to said nail as soon as said nail is driven from said channel and abuts said holding element.
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) | 1974-03-08 | 1974-09-07 | 1975-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-08 | 1978-09-07 | 1979-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-08 | 1982-09-07 | 1983-03-09 | $7700.00 | Window Closed / Lapsed |