US3751804A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Deburring tool
Assignee: Individual
•
Filing: 1971-03-08
•
Granted: 1973-08-14
•
Expires: 1991-03-08
Abstract
Abstract A grip has a tool shank projecting lengthwise from one end which carries a bit having a ring forming an eye with it axis extending transversely of the tool shank through its tip or a pair of skiving disks. The leading edge of the eye ring rim is sharpened to provide a concave arcuate cutting edge to straddle a workpiece ridge. The skiving disks are located in adjacent coplanar relationship to form a saddle slot between them for straddling a work sheet edge which will chamfer its two corner ridges. The upper end of the grip carries a brace rod having a wrist-engaging saddle. The lower grip end carries a guard plate.
Inventors
- 👤 E Pulrang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:21
CPC Classifications
B; B26; B26B; B26B27/00; Y; Y10; Y10T; Y10T409/00; Y10T409/50; Y10T409/501476
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
131 words
A deburring hand tool comprising a grip, a cantilever shank extending lengthwise from one end of said grip, and skiving means carried by the free end of said shank for deburring a ridge including an eye of substantially cylindrical cross section having its axis extending transversely of the length of said shank and an annular edge defined by the intersection of said eye with an exterior surface of said means, the portion of said edge remote from said grip forming a cutting edge having end portions lying axially outward of said eye from the remainder of the cutting edge and axially outward of a straight line defined by the points of intersection of said annular edge with the axial plane of said eye which extends in the direction of the shank.
Claim 2
Dependent Claim
131 words
A deburring hand tool comprising a grip, a cantilever shank extending lengthwise from one end of said grip, and skiving means carried by the free end of said shank for deburring a ridge including an eye of substantially cylindrical cross section having its axis extending transversely of the length of said shank and an annular edge defined by the intersection of said eye with an exterior surface of said means, the portion of said edge remote from said grip forming a cutting edge having end portions lying axially outward of said eye from the remainder of the cutting edge and axially outward of a straight line defined by the points of intersection of said annular edge with the axial plane of said eye which extends in the direction of the shank.
Claim 3
Dependent Claim
32 words
The tool defined in claim 1, in which the axis of the eye is inclined from the cutting edge end of the eye obliquely away from the free end of the shank.
Claim 4
Dependent Claim
46 words
The tool defined in claim 1, and brace means projecting transversely from a portion of the grip spaced from the shank, said brace means being of a length at least substantially as great as the length of the grip and forming an angle with the grip.
Claim 5
Dependent Claim
34 words
The tool defined in claim 3, in which the brace means projects from the grip in a direction substantially perpendicular to the length of the grip, and the angle is approximately a right angle.
Claim 6
Dependent Claim
63 words
The tool defined in claim 3, in which the brace means includes a rod having its length extending substantially perpendicular to the length of the grip and which rod projects from the end of the grip remote from the shank and a saddle carried by the end portion of said rod remote from the grip and engageable with the wrist of the user.
Claim 7
Dependent Claim
41 words
The tool defined in claim 3, and a guard plate projecting from the grip at a location spaced lengthwise of the grip from the brace means for accommodating the hand of the user between the brace means and said guard plate.
Claim 8
Dependent Claim
23 words
The tool defined in claim 6, and means for securing the guard plate in different positions turned about the axis of the grip.
Claim 9
Dependent Claim
79 words
A deburring hand tool comprising a grip, a cantilever shank extending lengthwise from one end of said grip, skiving means carried by the free end of said shank for deburring a ridge, and brace means projecting transversely from a portion of said grip spaced from said shank, said brace means being of a length at least substantially as great as the length of said grip and forming an angle with said grip to receive a hand grasping said grip.
Claim 10
Dependent Claim
79 words
A deburring hand tool comprising a grip, a cantilever shank extending lengthwise from one end of said grip, skiving means carried by the free end of said shank for deburring a ridge, and brace means projecting transversely from a portion of said grip spaced from said shank, said brace means being of a length at least substantially as great as the length of said grip and forming an angle with said grip to receive a hand grasping said grip.
Claim 11
Dependent Claim
53 words
The tool defined in claim 8, in which the brace means projects from the grip in a direction substantially perpendicular to the length of The grip, and the unobstructed angle is approximately a right angle and is unobstructed for the full length of the brace means and the full length of the grip.
Claim 12
Dependent Claim
62 words
The tool defined in claim 8, in which the brace means includes a rod having its length extending substantially perpendicular to the length of the grip, which rod projects from the end of the grip remote from the shank, and a saddle carried by the end portion of said rod remote from the grip and engageable with the wrist of the user.
Claim 13
Dependent Claim
41 words
The tool defined in claim 8, and a guard plate projecting from the grip at a location spaced lengthwise of the grip from the brace means for accommodating the hand of the user between the brace means and said guard plate.
Claim 14
Dependent Claim
140 words
A deburring hand tool comprising a grip, a cantilever shank extending lengthwise from one end of said grip, and skiving means carried by the free end of said shank for deburring a ridge including a ring having an eye with its axis inclined relative to the length of said grip, the intersection of the exterior portion of said ring with the end of the inclined eye farther from said grip forming a concave edge having a central cutting edge portion indented axially of said eye with respect to the end portions of said concave edge, said concave edge being formed around a small portion of the ring periphery, and said end portions being axially outward of a straight line defined by substantially the midpoint of said cutting edge portion and a point of said ring periphery opposite said cutting edge.
Claim 15
Dependent Claim
140 words
A deburring hand tool comprising a grip, a cantilever shank extending lengthwise from one end of said grip, and skiving means carried by the free end of said shank for deburring a ridge including a ring having an eye with its axis inclined relative to the length of said grip, the intersection of the exterior portion of said ring with the end of the inclined eye farther from said grip forming a concave edge having a central cutting edge portion indented axially of said eye with respect to the end portions of said concave edge, said concave edge being formed around a small portion of the ring periphery, and said end portions being axially outward of a straight line defined by substantially the midpoint of said cutting edge portion and a point of said ring periphery opposite said cutting edge.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-08-13 | 1977-02-12 | 1977-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-13 | 1981-02-12 | 1981-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-13 | 1985-02-12 | 1985-08-14 | $7700.00 | Window Closed / Lapsed |