Patent US3800839A successfully refreshed from Google Patents.
US3800839A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power tool for the application of screws or the like
Assignee: Individual
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Filing: 1972-02-29
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Granted: 1974-04-02
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Expires: 1992-02-29
Abstract
Abstract An attachment for portable power drills which serves to apply screws or similar threaded fasteners has a housing adapted to be clamped to the body of a drill and a drive shaft which can be rotated by the drill through the intermediary of an overload clutch. A control sleeve is movable axially and is turnable relative to the housing and supports at its front end a funnel for reception of screws in such a way that the head of a screw is insertable through a lateral inlet opening, that the stem or shank of the screw is insertable through a forwardly tapering slot, and that the tip of the screw can extend through a central outlet opening of the funnel. The latter has two sections which are biased towards each other by leaf springs anchored in the control sleeve. The rear end face of the control sleeve has sockets of varying depth which can be moved into registry with stops provided on an axially adjustable guide sleeve which surrounds the control sleeve. A removable bit in the drive shaft can rotate a screw in the funnel while the control sleeve moves rearwardly to the extent determined by the stops. The control sleeve is movable to an angular position in which it can be retracted to such an extent that the bit is accessible for inversion or replacement.
Inventors
- 👤 H Machtolf
- 👤 N Bogle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:47
CPC Classifications
B; B25; B25B; B25B23/00; B25B23/02; B25B23/08; B25B23/10; B25B21/00
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
183 words
In a device for applying screws or analogous threaded fasteners, a combination comprising a housing; a substantially sleeve-like control member reciprocable in said housing and having an exposed front end portion; a drive member rotatably mounted in said housing; a fastener-accommodating receptacle adjacent to said front end portion, reciprocable with said control member and including a plurality of sections at least one of which is movable substantially radially of said drive member toward and away from another section, said receptacle having an outlet opening for the tip of a fastener therein; means provided on said drive member for rotating a fastener in said receptacle; stop means provided in said housing to determine the extent of movement of said control member relative to said drive member and to thus determine the extent of penetration of a fastener in said receptacle beyond said outlet opening; guide means provided in said housing for said control member, said control member being turnable relative to said guide means about the axis of said drive member; and resilient means for biasing said control member to a predetermined angular position.
Claim 2
Dependent Claim
183 words
In a device for applying screws or analogous threaded fasteners, a combination comprising a housing; a substantially sleeve-like control member reciprocable in said housing and having an exposed front end portion; a drive member rotatably mounted in said housing; a fastener-accommodating receptacle adjacent to said front end portion, reciprocable with said control member and including a plurality of sections at least one of which is movable substantially radially of said drive member toward and away from another section, said receptacle having an outlet opening for the tip of a fastener therein; means provided on said drive member for rotating a fastener in said receptacle; stop means provided in said housing to determine the extent of movement of said control member relative to said drive member and to thus determine the extent of penetration of a fastener in said receptacle beyond said outlet opening; guide means provided in said housing for said control member, said control member being turnable relative to said guide means about the axis of said drive member; and resilient means for biasing said control member to a predetermined angular position.
Claim 3
Dependent Claim
22 words
A combination as defined in claim 1, further comprising adjusting means for moving said stop means substantially axially oF said drive member.
Claim 4
Dependent Claim
46 words
A combination as defined in claim 1, further comprising a portable power tool having a rotary output element, clamping means for separably securing said housing to said power tool, and clutch means for normally rotating said drive member in response to rotation of said output element.
Claim 5
Dependent Claim
31 words
A combination as defined in claim 1, further comprising means for biasing said control member axially of said drive member in a direction to move said receptacle away from said housing.
Claim 6
Dependent Claim
201 words
In a device for applying screws or analogous threaded fasteners, a combination comprising a housing; a drive member rotatably mounted in said housing; a substantially sleeve-like control member reciprocable in said housing and having an exposed front end portion and a rear end portion having a plurality of surfaces located at different distances from said front end portion thereof; a fastener-accommodating receptacle adjacent to said front end portion, reciprocable with said control member and including a plurality of sections at least one of which is movable substantially radially of said drive member toward and away from another section, said receptacle having an outlet opening for the tip of a fastener therein; means provided on said drive member for rotating a fastener in said receptacle; stop means provided in said housing to determine the extent of movement of said control member relative to said drive member and to thus determine the extent of penetration of a fastener in said receptacle beyond said outlet opening; and adjusting means for moving said stop means substantially axially of said drive member, said control member being turnable relative to the axis of said drive member to place a selected surface into register with said stop means.
Claim 7
Dependent Claim
201 words
In a device for applying screws or analogous threaded fasteners, a combination comprising a housing; a drive member rotatably mounted in said housing; a substantially sleeve-like control member reciprocable in said housing and having an exposed front end portion and a rear end portion having a plurality of surfaces located at different distances from said front end portion thereof; a fastener-accommodating receptacle adjacent to said front end portion, reciprocable with said control member and including a plurality of sections at least one of which is movable substantially radially of said drive member toward and away from another section, said receptacle having an outlet opening for the tip of a fastener therein; means provided on said drive member for rotating a fastener in said receptacle; stop means provided in said housing to determine the extent of movement of said control member relative to said drive member and to thus determine the extent of penetration of a fastener in said receptacle beyond said outlet opening; and adjusting means for moving said stop means substantially axially of said drive member, said control member being turnable relative to the axis of said drive member to place a selected surface into register with said stop means.
Claim 8
Dependent Claim
177 words
In a device for applying screws or analogous threaded fasteners, a combination comprising a housing; a substantially sleeve-like control member reciprocable in said housing and having an exposed front end portion; a drive member rotatably mounted in said housing; a fastener-accommodating receptacle adjacent to said front end portion, reciprocable with said control member and including a plurality of sections at least one of which is movable substantially radially of said drive member toward and away from another section, said receptacle having an outlet opening for the tip of a fastener therein; means provided on said drive member for rotating a fastener in said receptacle; stop means provided in said housing to determine the extent of movement of said control member relative to said drive member and to thus determine the extent of penetration of a fastener in said receptacle beyond said outlet opening; a sleeve-like guide member provided in said housing, surrounding said control member and supporting said stop means; and adjusting means for moving said guide member and said stop means axially of said guide member.
Claim 9
Dependent Claim
177 words
In a device for applying screws or analogous threaded fasteners, a combination comprising a housing; a substantially sleeve-like control member reciprocable in said housing and having an exposed front end portion; a drive member rotatably mounted in said housing; a fastener-accommodating receptacle adjacent to said front end portion, reciprocable with said control member and including a plurality of sections at least one of which is movable substantially radially of said drive member toward and away from another section, said receptacle having an outlet opening for the tip of a fastener therein; means provided on said drive member for rotating a fastener in said receptacle; stop means provided in said housing to determine the extent of movement of said control member relative to said drive member and to thus determine the extent of penetration of a fastener in said receptacle beyond said outlet opening; a sleeve-like guide member provided in said housing, surrounding said control member and supporting said stop means; and adjusting means for moving said guide member and said stop means axially of said guide member.
Claim 10
Dependent Claim
46 words
A combination as defined in claim 6, wherein said housing has window means and said stop means comprises external threads extending through said window means, and adjusting means comprising a ring mounted for rotation on said housing and having internal threads meshing with the external threads.
Claim 11
Dependent Claim
187 words
In a device for applying screws or analogous threaded fasteners, a combination comprising a housing; a drive member rotatably mounted in said housing; a substantially sleeve-like control member reciprocable in said housing and having an exposed front end portion and a rear end face provided with a plurality of axially extending sockets of different depths; a fastener-accommodating receptacle adjacent to said front end portion, reciprocable with said control member and including a plurality of sections at least one of which is movable substantially radially of said drive member toward and away from another section, said receptacle having an outlet opening for the tip of a fastener therein; means provided on said drive member for rotating a fastener in said receptacle; and stop means provided in said housing to determIne the extent of movement of said control member relative to said drive member and to thus determine the extent of penetration of a fastener in said receptacle beyond said outlet opening, said control member being rotatable relative to said housing about the axis of said drive member to place a selected socket into register with said stop means.
Claim 12
Dependent Claim
187 words
In a device for applying screws or analogous threaded fasteners, a combination comprising a housing; a drive member rotatably mounted in said housing; a substantially sleeve-like control member reciprocable in said housing and having an exposed front end portion and a rear end face provided with a plurality of axially extending sockets of different depths; a fastener-accommodating receptacle adjacent to said front end portion, reciprocable with said control member and including a plurality of sections at least one of which is movable substantially radially of said drive member toward and away from another section, said receptacle having an outlet opening for the tip of a fastener therein; means provided on said drive member for rotating a fastener in said receptacle; and stop means provided in said housing to determIne the extent of movement of said control member relative to said drive member and to thus determine the extent of penetration of a fastener in said receptacle beyond said outlet opening, said control member being rotatable relative to said housing about the axis of said drive member to place a selected socket into register with said stop means.
Claim 13
Dependent Claim
43 words
A combination as defined in claim 8, further comprising resilient means for biasing said control member to a predetermined angular position and for simultaneously biasing said control member in a direction to move said rear end portion thereof away from said stop means.
Claim 14
Dependent Claim
41 words
A combination as defined in claim 9, wherein said resilient means comprises a helical spring surrounding said drive member and having first and second end portions respectively secured to said housing and to the front end portion of said control member.
Claim 15
Dependent Claim
39 words
A combination as defined in claim 8, further comprising guide means for limiting the extent of angular movement of said control member relative to said housing and for guiding said control member during movement axially of said drive member.
Claim 16
Dependent Claim
48 words
A combination as defined in claim 11, wherein said guide means comprises slot means provided in said control member and including first and second portions respectively extending axially and circumferentially of said guide member, and a guide pin secured to said housing and extending into said slot means.
Claim 17
Dependent Claim
30 words
A combination as defined in claim 1, wherein said front end portion of said control member is roughened to facilitate the gripping of such front end portion by the hand.
Claim 18
Dependent Claim
17 words
A combination as defined in claim 1, wherein said housing forms part of a portable power tool.
Claim 19
Dependent Claim
43 words
A combination as defined in claim 1, wherein said means for rotating a fastener in said receptacle is separably secured to said drive member and is accessible from without in a predetermined axial position of said control member relative to said drive member.
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) | 1977-04-01 | 1977-10-01 | 1978-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-01 | 1981-10-01 | 1982-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-01 | 1985-10-01 | 1986-04-02 | $7700.00 | Window Closed / Lapsed |