US4222175A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alignment sight for hand drills
Assignee: BERNICKY JOSEPH
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Filing: 1978-12-26
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Granted: 1980-09-16
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Expires: 1998-12-26
Abstract
Abstract An alignment sight for hand drills utilizes a pair of sights, preferably a fixed tool, a unitary sheet, for mounting onto the exterior surface of an electrical hand tool of the hand drill variety. The sights are arranged so that the sight line extends perfectly parallel to the longitudinal axis located in the center of the chuck of the hand drill. In use, a user marks a spot on the work piece a fixed distance from the center of the hole to be drilled. Positioning the tip of the drill bit at the location of the hole, and locating the drill bit so that it extends substantially normal to the plane of the work piece, permits the user to maintain the sights aligned with the mark thereby forever maintaining the longitudinal axis of the drill bit perfectly normal to the surface of the work piece, providing thereby, a hole extending at right angles to the surface of the work piece.
Inventors
- 👤 Joseph Bernicky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:10
CPC Classifications
G; G01; G01B; G01B11/00; G01B11/26; B; B25; B25H; B25H1/00; B25H1/0021; B25H1/0078; B25H1/0092; Y; Y10; Y10T; Y10T408/00; Y10T408/21
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
418 words
An alignment sight for a hand drill, said hand drill having a chuck for receiving a drill bit therein, said drill bit defining a longitudinal axis when disposed clamped within said chuck, said alignment sight comprising an elongated rigid sheet, said sheet being disposed in a U-shape having a pair of legs joined together by a joining portion of said sheet, each leg of said pair of legs having an optically defined sight location thereon, a pair of sights, one of said pair of sights being disposed adjacent an end of said hand drill opposite the end thereof having said chuck thereon, each of said pair of sights including an opaque portion and a non-opaque portion, said sight location being disposed a fixed distance from said joining portion of said sheet, at least one band, said at least one band having ends, a portion of said at least one band fixedly secured to said joining portion, said pair of legs and said ends of said at least one band being disposed having said joining portion thereinbetween, said at least one band being configured so as to clampingly removably engage the exterior surface of a portable drill machine, whereby a point coincident with said opaque portion and said non-opaque portion of one of said pair of sights and another point coincident with said opaque portion and said non-opaque portion of the other of said pair of sights define a line, said adjoining portion having a threaded hole therein, a bolt, said bolt threadingly engaged with said threaded hole, one end of said bolt extending outwardly from said joining portion in a direction opposite to the location of said legs and directed towards said exterior surface, a helical spring, said helical spring being disposed located about said bolt, one end of said spring engaging said exterior surface of said drill machine, the other end of said spring engaging said joining portion, whereby turning said bolt disposes the axis of said line at a preferred angular relationship to said longitudinal axis by adjusting said line in and out of parallel relationship with said longitudinal axis when said at least one band is clampingly removably engaged on said exterior surface and by disposing said point coincident with said opaque portion and said non-opaque portion of one of said pair of sights a greater or lesser distance from said longitudinal axis than the other said point coincident with said opaque portion and said non-opaque portion of the other of said pair of sights.
Claim 2
Dependent Claim
418 words
An alignment sight for a hand drill, said hand drill having a chuck for receiving a drill bit therein, said drill bit defining a longitudinal axis when disposed clamped within said chuck, said alignment sight comprising an elongated rigid sheet, said sheet being disposed in a U-shape having a pair of legs joined together by a joining portion of said sheet, each leg of said pair of legs having an optically defined sight location thereon, a pair of sights, one of said pair of sights being disposed adjacent an end of said hand drill opposite the end thereof having said chuck thereon, each of said pair of sights including an opaque portion and a non-opaque portion, said sight location being disposed a fixed distance from said joining portion of said sheet, at least one band, said at least one band having ends, a portion of said at least one band fixedly secured to said joining portion, said pair of legs and said ends of said at least one band being disposed having said joining portion thereinbetween, said at least one band being configured so as to clampingly removably engage the exterior surface of a portable drill machine, whereby a point coincident with said opaque portion and said non-opaque portion of one of said pair of sights and another point coincident with said opaque portion and said non-opaque portion of the other of said pair of sights define a line, said adjoining portion having a threaded hole therein, a bolt, said bolt threadingly engaged with said threaded hole, one end of said bolt extending outwardly from said joining portion in a direction opposite to the location of said legs and directed towards said exterior surface, a helical spring, said helical spring being disposed located about said bolt, one end of said spring engaging said exterior surface of said drill machine, the other end of said spring engaging said joining portion, whereby turning said bolt disposes the axis of said line at a preferred angular relationship to said longitudinal axis by adjusting said line in and out of parallel relationship with said longitudinal axis when said at least one band is clampingly removably engaged on said exterior surface and by disposing said point coincident with said opaque portion and said non-opaque portion of one of said pair of sights a greater or lesser distance from said longitudinal axis than the other said point coincident with said opaque portion and said non-opaque portion of the other of said pair of sights.
Claim 3
Dependent Claim
102 words
The apparatus as claimed in claim 1 wherein one of said pair of sights comprises a triangularly shaped member, said triangularly shaped member being opaque, the apex of said triangularly shaped member extending outwardly from said joining member and having a V-shaped notch, said V-shaped notch being non-opaque, the apex of said V-shaped notch being disposed adjacent said joining member, the other of said pair of sights including another V-shaped notch, said another V-shaped notch being non-opaque, the apex of said another V-shaped notch being disposed located adjacent said joining member, said notch and said another notch being disposed along said line.
Claim 4
Dependent Claim
45 words
The apparatus as claimed in claim 1 wherein one of said sight locations comprises an opening, a pair of sight wires fixedly secured traversing said opening and extending at right angles to one another, said pair of sight wires traversing one another along said line.
Claim 5
Dependent Claim
31 words
The apparatus as claimed in claim 1 wherein said ends of said at least one band extend outwardly from portions of the surface of said at least one band adjacent thereto.
Claim 6
Dependent Claim
15 words
The apparatus as claimed in claim 1 wherein said at least one band comprises steel.
Claim 7
Dependent Claim
17 words
The apparatus as claimed in claim 1 wherein said at least one band has a curved surface.
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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) | 1983-09-16 | 1984-03-17 | 1984-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-09-16 | 1988-03-17 | 1988-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-09-16 | 1992-03-17 | 1992-09-16 | $7700.00 | Window Closed / Lapsed |