US3820705A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nailing machine
Assignee: Individual
•
Filing: 1972-08-07
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Granted: 1974-06-28
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Expires: 1992-08-07
Abstract
Abstract A driving pin is positioned in the bore of a barrel and a pneumatic power means reciprocates the driving pin against nail heads fed into the bore from a guide extending at an angle to the bore upwardly and outwardly. A ball detent stop means is provided in the wall of the bore opposite the guide to engage the lower side of the nail head and a pair of magnets is positioned with opposite poles adjacent the nail shank to maintain the shank in the bore. The driving pin includes at least one transversely extending groove providing a shoulder which engages the head of the nail when the driving pin is retracted thereby pivoting the nail such that the shank moves into the field of magnets and is held there until it is driven by the driving pin. The nails are fed from the guide into the bore by gravity and a weight is positioned in the guide to engage the nails and maintain them in contiguous relationship. The weight is U-shaped and the bight portion straddles a wall of the guide and if the guide is positioned to extend downwardly the weight pivots in such a manner that the bight portion wedges against the top edge of the wall and the cover plate preventing the nails from moving in the guide away from the bore. The driving pin is circular in cross section but is flattened along the side having the transverse groove and the lower end is tapered downwardly and inwardly to facilitate contact with the nail head in the bore only since the nails in the guide have their heads in overlapping relationship. The barrel on the head of the nailing machine is rotatable to maintain the guide in an upwardly extending position when the gun is being used to nail at various angles.
Inventors
- 👤 W Beals
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:49
CPC Classifications
B; B25; B25C; B25C1/00; B25C1/001; B25C1/005
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
218 words
A nailing machine, comprising, a barrel having an elongated bore and an opening at one end and having a slot on one side of the bore, a driving pin in said bore, power means for reciprocating said driving pin, a nail guide having an elongated passageway in communication with said slot, said passageway adapted to contain a row of nails, with one nail being positioned in said bore, a releasable stop means on the side of said bore engaging the bottom side of the head of the nail in said bore, magnetic means in the side of said bore opposite said passageway for attracting the shank of said nail in said passageway, feed meaNs for successively feeding nails in said row of nails into said bore after each reciprocation of said driving pin, and releasable gripping means adjacent the lower end and on the side of said driving pin adjacent said passageway for engaging the head of the next nail in said passageway as said driving pin moves away from said open end in said bore and after having driven the nail in said bore whereby the pull on the head of said next nail pivots the shank of said next nail into said bore where it is held by said magnet means and said releasable stop means.
Claim 2
Dependent Claim
218 words
A nailing machine, comprising, a barrel having an elongated bore and an opening at one end and having a slot on one side of the bore, a driving pin in said bore, power means for reciprocating said driving pin, a nail guide having an elongated passageway in communication with said slot, said passageway adapted to contain a row of nails, with one nail being positioned in said bore, a releasable stop means on the side of said bore engaging the bottom side of the head of the nail in said bore, magnetic means in the side of said bore opposite said passageway for attracting the shank of said nail in said passageway, feed meaNs for successively feeding nails in said row of nails into said bore after each reciprocation of said driving pin, and releasable gripping means adjacent the lower end and on the side of said driving pin adjacent said passageway for engaging the head of the next nail in said passageway as said driving pin moves away from said open end in said bore and after having driven the nail in said bore whereby the pull on the head of said next nail pivots the shank of said next nail into said bore where it is held by said magnet means and said releasable stop means.
Claim 3
Dependent Claim
43 words
The structure of claim 1 wherein said releaseable gripping means is further defined as being a laterally extending groove in the side of said driving pin and said groove having a shoulder for engaging said head of said next nail in said passageway.
Claim 4
Dependent Claim
28 words
The structure of claim 2 wherein said groove is one of a series of spaced apart laterally extending grooves on said driving pin adjacent the lower end thereof.
Claim 5
Dependent Claim
28 words
The structure of claim 1 wherein said releaseable stop on the side of said bore is further defined as being a ball detent spring biased into said bore.
Claim 6
Dependent Claim
27 words
The structure of claim 1 wherein said magnetic means is further defined as including a pair of spaced apart rod magnets having opposite poles adjacent said base.
Claim 7
Dependent Claim
13 words
The structure of claim 1 wherein said driving pin is cylindrical in shape.
Claim 8
Dependent Claim
21 words
The structure of claim 6 wherein said cylindrical driving pin is further defined as having a flattened side adjacent said passageway.
Claim 9
Dependent Claim
54 words
The structure of claim 7 wherein said driving pin is further defined as having a tapering surface on its lower end extending from said flattened surface longitudinally inwardly to provide clearance relative to the next nail in said passageway when said driving pin is moving towards said bore open end and past said passageway.
Claim 10
Dependent Claim
35 words
The structure of claim 8 wherein said passageway is adapted to contain said row of nails with their heads in overlapping relationship whereby less than a full nail head is exposed to said driving pin.
Claim 11
Dependent Claim
35 words
The structure of claim 1 wherein said passageway is defined by a pair of spaced apart walls having upper longitudinal edges on which said nail heads ride in moving along said passageway into said bore.
Claim 12
Dependent Claim
24 words
The structure of claim 10 wherein a retaining wall extends over and parallel to said nail heads to maintain said nails in said passageway.
Claim 13
Dependent Claim
227 words
A nailing machine, comprising, a barrel having elongated bore and an opening at one end, a driving pin in said bore, power means for reciprocating said driving pin, a nail guide having an elongated passageway in communication with said bore, said passageway adapted to contain a row of nails with one nail being in said bore, said passageway extending upwardly at an angle to said bore whereby said row of nails will gravity feed into said bore, a releasable stop means on the side of said bore engaging the bottom side of the head of the nail in said bore, magnetic means in the side of said bore opposite said passageway for attracting the shank of said nail in said passageway, feed means for successively feeding nails in said row of nails into said bore after each reciprocation of said driving pin, and releasable gripping means adjacent the lower end and on the side of said driving pin adjacent said passageway for engaging the head of the next nail in said passageway as said driving pin moves away from said open end in said bore and after having driven the nail in said bore whereby the pull on the head of said next nail pivots the shank of said next nail into said bore where it is held by said magnet means and said releasable stop means.
Claim 14
Dependent Claim
227 words
A nailing machine, comprising, a barrel having elongated bore and an opening at one end, a driving pin in said bore, power means for reciprocating said driving pin, a nail guide having an elongated passageway in communication with said bore, said passageway adapted to contain a row of nails with one nail being in said bore, said passageway extending upwardly at an angle to said bore whereby said row of nails will gravity feed into said bore, a releasable stop means on the side of said bore engaging the bottom side of the head of the nail in said bore, magnetic means in the side of said bore opposite said passageway for attracting the shank of said nail in said passageway, feed means for successively feeding nails in said row of nails into said bore after each reciprocation of said driving pin, and releasable gripping means adjacent the lower end and on the side of said driving pin adjacent said passageway for engaging the head of the next nail in said passageway as said driving pin moves away from said open end in said bore and after having driven the nail in said bore whereby the pull on the head of said next nail pivots the shank of said next nail into said bore where it is held by said magnet means and said releasable stop means.
Claim 15
Dependent Claim
40 words
The structure of claim 12 wherein said feed means is further defined as including a weight means in said passageway adapted to provide engagement with the last nail in said row for pushing said row of nails towards said bore.
Claim 16
Dependent Claim
51 words
The structure of claim 13 wherein said weight means comprises a U-shaPed member and said passageway is defined by a pair of spaced apart side walls, said U-shaped member straddling one of said side walls with the bight of said U-shaped member engaging the upper edge of said one side wall.
Claim 17
Dependent Claim
47 words
The structure of claim 14 wherein a retaining wall extends closely adjacent the heads of said nails and the bight of said U-shaped member pivots said U-shaped member on said one wall and said bight wedges against said retaining wall thereby holding said nails in said passageway.
Claim 18
Dependent Claim
32 words
The structure of claim 1 wherein said barrel is on a gun structure including said power means for reciprocating said driving pin, and said barrel is rotatably connected to said gun structure.
Claim 19
Dependent Claim
39 words
The structure of claim 16 wherein said guide extends outwardly and upwardly relative to said barrel whereby said feed means is adapted to gravity feed said nails into said bore as said gun structure is moved to different positions.
Claim 20
Dependent Claim
222 words
A nailing machine, comprising, a barrel having elongated bore and an opening at one end, a driving pin in said bore, power means for reciprocating said driving pin, a nail guide having an elongated passageway in communication with said bore, said passageway adapted to contain a row of nails with one nail being in said bore, said passageway extending upwardly at an angle to said bore whereby said row of nails will gravity feed into said bore, feed means for successively feeding nails in said row of nails into said bore after each reciprocation of said driving pin, and said feed means including a weight means in said passageway adapted to provide engagement with the last nail in said row for pushing said row of nails towards said bore, said weight means being a U-shaped member and said passageway being a pair of spaced apart side walls; said U-shaped member straddling one of said side walls with the bight of said U-shaped member engaging the upper edge of said one side wall, a retaining wall extends closely adjacent the heads of said nails and the bight of said U-shaped member pivots said U-shaped member on said one wall and said bight wedges against said retaining wall thereby holding said nails in said passageway when the outer end of said guide extends downwardly.
Claim 21
Dependent Claim
222 words
A nailing machine, comprising, a barrel having elongated bore and an opening at one end, a driving pin in said bore, power means for reciprocating said driving pin, a nail guide having an elongated passageway in communication with said bore, said passageway adapted to contain a row of nails with one nail being in said bore, said passageway extending upwardly at an angle to said bore whereby said row of nails will gravity feed into said bore, feed means for successively feeding nails in said row of nails into said bore after each reciprocation of said driving pin, and said feed means including a weight means in said passageway adapted to provide engagement with the last nail in said row for pushing said row of nails towards said bore, said weight means being a U-shaped member and said passageway being a pair of spaced apart side walls; said U-shaped member straddling one of said side walls with the bight of said U-shaped member engaging the upper edge of said one side wall, a retaining wall extends closely adjacent the heads of said nails and the bight of said U-shaped member pivots said U-shaped member on said one wall and said bight wedges against said retaining wall thereby holding said nails in said passageway when the outer end of said guide extends downwardly.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-27 | 1981-12-27 | 1982-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-27 | 1985-12-27 | 1986-06-28 | $7700.00 | Window Closed / Lapsed |