US4463889A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Special screw feed mechanism for screws, bolts, rivets, nails, etc.
Assignee: Aro Corp
•
Filing: 1982-03-25
•
Granted: 1984-08-07
•
Expires: 2002-03-25
Abstract
Abstract A screw feed mechanism includes a pivoting magazine positioned in a housing. The magazine includes a single throughbore which receives a single screw from a feeder hose and then pivots into alignment with a drive tool. The magazine is driven by a pneumatic cylinder.
Inventors
- 👤 Bernard C. Sartran
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:02
CPC Classifications
B; B25; B25B; B25B23/00; B25B23/02; B25B23/04
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
136 words
An improved screw feed mechanism comprising, in combination: a housing having a throughbore defining a tool axis, a magazine chamber on the axis separating the throughbore into a tool bore and a collet bore; a tool in the tool bore translatable along the axis through the region of the chamber; fastener supply means; a fastener magazine in the chamber, said magazine including a throughbore for receipt of a fastener, said magazine mounted in the chamber for pivotal movement about an axis transverse to the tool axis on a pivot substantially intersecting the tool axis between a first position aligning the magazine throughbore with the tool axis and a second position for receipt of a fastener from the fastener supply means; and pneumatic means for pivoting and aligning the magazine in at least one of the positions.
Claim 2
Dependent Claim
136 words
An improved screw feed mechanism comprising, in combination: a housing having a throughbore defining a tool axis, a magazine chamber on the axis separating the throughbore into a tool bore and a collet bore; a tool in the tool bore translatable along the axis through the region of the chamber; fastener supply means; a fastener magazine in the chamber, said magazine including a throughbore for receipt of a fastener, said magazine mounted in the chamber for pivotal movement about an axis transverse to the tool axis on a pivot substantially intersecting the tool axis between a first position aligning the magazine throughbore with the tool axis and a second position for receipt of a fastener from the fastener supply means; and pneumatic means for pivoting and aligning the magazine in at least one of the positions.
Claim 3
Dependent Claim
19 words
The mechanism of claim 1 including a fastener feeder passage aligned with the fastener magazine in the second position.
Claim 4
Dependent Claim
28 words
The mechanism of claim 2 wherein the axes of the tool bore and the feeder passage and of rotation of the magazine all intersect at a common point.
Claim 5
Dependent Claim
18 words
The mechanism of claim 2 wherein the magazine blocks the fastener feeder passage except in the second position.
Claim 6
Dependent Claim
24 words
The mechanism of claim 1 including a pneumatic drive means attached to the magazine for pivoting the magazine between the first and second position.
Claim 7
Dependent Claim
18 words
The mechanism of claim 1 wherein the magazine blocks the tool bore except when in the first position.
Claim 8
Dependent Claim
17 words
The mechanism of claim 1 including mechanical biasing means for biasing magazine to one of the positions.
Claim 9
Dependent Claim
25 words
The mechanism of claim 7 including a pneumatic drive connected to the magazine for pivoting the magazine against the biasing force of the biasing means.
References Cited (Backward Citations)
US1753499A
Cited
US2506994A
Cited
US2510137A
Cited
US3802617A
Cited
US4008842A
Cited
SU677867A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-08-07 | 1988-02-06 | 1988-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-08-07 | 1992-02-06 | 1992-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-08-07 | 1996-02-06 | 1996-08-07 | $7700.00 | Window Closed / Lapsed |