US3913815A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for driving pegs into pre-bored holes
Assignee: METALLWARENFABRIK FISCHAMEND
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Filing: 1974-05-13
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Granted: 1975-10-21
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Expires: 1994-05-13
Abstract
Abstract Apparatus for driving pegs into pre-bored holes, having a discharge channel which has a lateral feed location for feeding the pegs from a magazine, and a plunger driving the pegs, characterised in that in the terminal position of the driving stroke the frontal face of the plunger is disposed at a distance from the mouth of the driving channel which corresponds to the length of the peg minus a fraction thereof, that the length of the discharge channel from the lower margin of the feed location for the pegs to its mouth corresponds at least to the length of the peg minus a fraction of its length, and that means are provided for clamping the peg in the mouth of the discharge channel.
Inventors
- 👤 Anton Holzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:54
CPC Classifications
B; B27; B27F; B27F4/00; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/4987; Y10T29/49945
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
133 words
Apparatus for driving pegs into pre-bored holes, having a discharge channel which has a lateral feed location for feeding the pegs from a magazine, and a plunger driving the pegs, characterised in that in the terminal position of the driving stroke the frontal face of the plunger (3) is disposed at a distance from the mouth (13) of the driving channel (6) which corresponds to the length of the peg (7) minus a fraction thereof, that the length of the discharge channel (6) from the lower margin of the feed location (8) for the pegs (7) to its mouth corresponds at least to the length of the peg (7) minus a fraction of its length, and that means are provided for clamping the peg(7'') in the mouth (13) of the discharge channel (6).
Claim 2
Dependent Claim
133 words
Apparatus for driving pegs into pre-bored holes, having a discharge channel which has a lateral feed location for feeding the pegs from a magazine, and a plunger driving the pegs, characterised in that in the terminal position of the driving stroke the frontal face of the plunger (3) is disposed at a distance from the mouth (13) of the driving channel (6) which corresponds to the length of the peg (7) minus a fraction thereof, that the length of the discharge channel (6) from the lower margin of the feed location (8) for the pegs (7) to its mouth corresponds at least to the length of the peg (7) minus a fraction of its length, and that means are provided for clamping the peg(7'') in the mouth (13) of the discharge channel (6).
Claim 3
Dependent Claim
27 words
Apparatus according to claim 1, charaterised in that in the region of its mouth (13) the discharge channel (6) is narrow so that the pegs are clamped.
Claim 4
Dependent Claim
26 words
Apparatus according to claim 1, characterised in that spring clamping jaws (16) are provided in the region of the mouth (13) of the discharge channel (6).
Claim 5
Dependent Claim
25 words
Apparatus according to claim 1, characterised in that in the region of its mouth (13) the discharge channel (6) is slotted (23) and resiliently expandable.
Claim 6
Dependent Claim
52 words
Apparatus according to any one of claims 1, characterised in that a safety device (24) for preventing the return of the peg (7'') is provided in the discharge channel (6) at a distance from the mouth (13) of the discharge channel (6) which is less than the length of the peg (7).
Claim 7
Dependent Claim
19 words
Apparatus according to claim 5, characterised in that the safety device is in the form of a pawl (24).
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) | 1978-10-20 | 1979-04-21 | 1979-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-20 | 1983-04-21 | 1983-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-20 | 1987-04-21 | 1987-10-21 | $7700.00 | Window Closed / Lapsed |