US3779663A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drill bit gauge
Assignee: Individual
•
Filing: 1971-12-20
•
Granted: 1973-12-18
•
Expires: 1991-12-20
Abstract
Abstract The improved gauge of the invention incorporates both drill bit guide means and drill bit depth regulating means of an improved type. Neither the guide means nor the depth regulating means engages the drill bit so that work surface galling is prevented. The gauge further includes work surface contacting means, drill contacting means and may also include adjusting means engaging the work surface contacting means and drill contacting means.
Inventors
- 👤 C Ruggles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:06
CPC Classifications
B; B25; B25H; B25H1/00; B25H1/0021; B25H1/0078; B23; B23B; B23B49/00; B23B49/003; B23B49/006; Y; Y10; Y10T; Y10T408/00; Y10T408/18; Y10T408/55; Y10T408/566; Y10T408/89; Y10T408/892; Y10T408/8925; Y10T408/96; Y10T408/99
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
186 words
An improved drill bit gauge, which comprises, in combination, a bracket assembly, and a depth regulating assembly, said depth regulating assembly including an elongated threaded element positioned a predetermined distance from and generally parallel to a drill bit, releasable adjusting means, and work-surface contacting means secured to one end of said elongated threaded element, said bracket assembly including a pair of curved wings, each of said wings defining a slot in one end thereof adapted to receive a first drill housing screw, each of said wings also having an aperture in the opposite end thereof adapted to receive and pivot about said elongated threaded element, said bracket assembly further including an elongated plate, said elongated plate further including a pair of transversely extending ears at each end thereof, said transversely extending ears defining elongated threaded element-receiving apertures, whereby said elongated threaded element is adapted to pass through the aperture in each of said wings and the aperture on each of said ears, and whereby said elongated element is maintained in a fixed, pre-determined position with respect to all of said apertures by said rEleasable adjusting means.
Claim 2
Dependent Claim
186 words
An improved drill bit gauge, which comprises, in combination, a bracket assembly, and a depth regulating assembly, said depth regulating assembly including an elongated threaded element positioned a predetermined distance from and generally parallel to a drill bit, releasable adjusting means, and work-surface contacting means secured to one end of said elongated threaded element, said bracket assembly including a pair of curved wings, each of said wings defining a slot in one end thereof adapted to receive a first drill housing screw, each of said wings also having an aperture in the opposite end thereof adapted to receive and pivot about said elongated threaded element, said bracket assembly further including an elongated plate, said elongated plate further including a pair of transversely extending ears at each end thereof, said transversely extending ears defining elongated threaded element-receiving apertures, whereby said elongated threaded element is adapted to pass through the aperture in each of said wings and the aperture on each of said ears, and whereby said elongated element is maintained in a fixed, pre-determined position with respect to all of said apertures by said rEleasable adjusting means.
Claim 3
Dependent Claim
34 words
The improved drill bit gauge as set forth in claim 1 wherein said work-surface contacting means has an internally threaded, upstanding collar adapted to be screwed onto one end of said elongated threaded element.
Claim 4
Dependent Claim
22 words
The improved drill bit gauge as set forth in claim 2 wherein said releasable adjusting means comprises a plurality of threaded nuts.
Claim 5
Dependent Claim
32 words
The improved drill bit gauge as set forth in claim 3 wherein said elongated plate has a plurality of apertures extending along the length thereof adapted to receive a drill housing screw.
References Cited (Backward Citations)
US1929585A
Cited
US2675003A
Cited
US2978931A
Cited
US2997900A
Cited
US3119285A
Cited
US3537336A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-17 | 1977-06-18 | 1977-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-17 | 1981-06-18 | 1981-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-17 | 1985-06-18 | 1985-12-18 | $7700.00 | Window Closed / Lapsed |