US4904130A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cutting tools with depth indication
Assignee: Individual
•
Filing: 1989-01-11
•
Granted: 1990-02-27
•
Expires: 2009-01-11
Abstract
Abstract A drill bit, circular saw blade, milling head or other cutting tool on which are disposed a repeating series of color coded marks spaced uniformly at small predetermined increments so that they can be seen and distinguished while the tool is in use and can therefore be used as depth gauges for cutting, shaping or drilling to a desired depth.
Inventors
- 👤 Jeremy W. Gorman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:40
CPC Classifications
B; B23; B23B; B23B49/00; B23B49/003; B23B49/005; B23B51/00; B23B51/02; B23D; B23D61/00; B23D61/02; B23D61/022; B23B2260/00; B23B2260/088; B23B2260/104; Y; Y10; Y10T; Y10T408/00; Y10T408/21; Y10T408/57; Y10T408/89; Y10T408/909
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
91 words
A cutting tool apparatus for use with metal, wood, plastic, ceramic, masonry or other materials which comprises; a cutting surface; a support surface for holding said cutting surface; a plurality of indicia disposed on said support surface for indicating the depth of said cutting surface in an associated work piece, the distance between adjacent indicia being uniform; said plurality of indicia being arrayed in at least two spaced sets, each set consisting of a plurality of indicia of a plurality of colors, and each of the sets having the same colors.
Claim 2
Dependent Claim
91 words
A cutting tool apparatus for use with metal, wood, plastic, ceramic, masonry or other materials which comprises; a cutting surface; a support surface for holding said cutting surface; a plurality of indicia disposed on said support surface for indicating the depth of said cutting surface in an associated work piece, the distance between adjacent indicia being uniform; said plurality of indicia being arrayed in at least two spaced sets, each set consisting of a plurality of indicia of a plurality of colors, and each of the sets having the same colors.
Claim 3
Dependent Claim
19 words
The apparatus as described in claim 1 wherein: each set has the same colors arranged in the same order.
Claim 4
Dependent Claim
23 words
The apparatus as described in claim 2 wherein: the distance between adjacent indicia is a fractional part of a standard unit of measurement.
Claim 5
Dependent Claim
26 words
The apparatus as described in claim 3 wherein: said colors are selected from the group consisting of white, black, silver, gold, brown, red, green and yellow.
Claim 6
Dependent Claim
89 words
A circular saw blade for use with metal, wood, plastic, ceramic, masonry or other materials which comprises: a cutting surface; a support surface for holding said cutting surface; a plurality of indicia disposed on said support surface for indicating the depth of said cutting surface in an associated work piece, the distance between adjacent indicia is uniform, said indicia being arrayed in at least two spaced sets, each set consisting of a plurality of indicia of a plurality of colors, and each of the sets having the same colors.
Claim 7
Dependent Claim
89 words
A circular saw blade for use with metal, wood, plastic, ceramic, masonry or other materials which comprises: a cutting surface; a support surface for holding said cutting surface; a plurality of indicia disposed on said support surface for indicating the depth of said cutting surface in an associated work piece, the distance between adjacent indicia is uniform, said indicia being arrayed in at least two spaced sets, each set consisting of a plurality of indicia of a plurality of colors, and each of the sets having the same colors.
Claim 8
Dependent Claim
19 words
The apparatus as described in claim 5 wherein: each set has the same colors arranged in the same order.
Claim 9
Dependent Claim
23 words
The apparatus as described in claim 6 wherein: the distance between adjacent indicia is a fractional part of a standard unit of measurement.
Claim 10
Dependent Claim
26 words
The apparatus as described in claim 7 wherein: said colors are selected from the group consisting of white, black, silver, gold, brown, red, green and yellow.
Claim 11
Dependent Claim
87 words
A twist drill for use with metal, wood, plastic, ceramic, masonry or other materials which comprises; a cutting surface; a support structure for holding said cutting surface; a plurality of indicia disposed on said support surface for indicating the depth of said cutting surface in an associated work piece, the distance between adjacent indicia being uniform, said indicia being arrayed in at least two sets, each set consisting of a plurality of indicia of a plurality of colors, and each of the sets having the same colors.
Claim 12
Dependent Claim
87 words
A twist drill for use with metal, wood, plastic, ceramic, masonry or other materials which comprises; a cutting surface; a support structure for holding said cutting surface; a plurality of indicia disposed on said support surface for indicating the depth of said cutting surface in an associated work piece, the distance between adjacent indicia being uniform, said indicia being arrayed in at least two sets, each set consisting of a plurality of indicia of a plurality of colors, and each of the sets having the same colors.
Claim 13
Dependent Claim
19 words
The apparatus as described in claim 9 wherein: each set has the same colors arranged in the same order.
Claim 14
Dependent Claim
23 words
The apparatus as described in claim 10 wherein: the distance between adjacent indicia is a fractional part of a standard unit of measurement.
Claim 15
Dependent Claim
26 words
The apparatus as described in claim 11 wherein: said colors are selected from the group consisting of white, black, silver, gold, brown, red, green and yellow.
Claim 16
Dependent Claim
87 words
A spade auger for use with metal, wood, plastic, ceramic, masonry or other materials which comprises; a cutting surface; support structure for holding said cutting surface; a plurality of indicia disposed on said support surface for indicating the depth of said cutting surface in an associated work piece, the distance between adjacent indicia being uniform, said indicia being arrayed in at least two spaced sets, each set consisting of a plurality of indicia of a plurality of colors, and each of the sets having the same colors.
Claim 17
Dependent Claim
87 words
A spade auger for use with metal, wood, plastic, ceramic, masonry or other materials which comprises; a cutting surface; support structure for holding said cutting surface; a plurality of indicia disposed on said support surface for indicating the depth of said cutting surface in an associated work piece, the distance between adjacent indicia being uniform, said indicia being arrayed in at least two spaced sets, each set consisting of a plurality of indicia of a plurality of colors, and each of the sets having the same colors.
Claim 18
Dependent Claim
23 words
The apparatus as described in claim 13 wherein: the distance between adjacent indicia is a fractional part of a standard unit of measurement.
Claim 19
Dependent Claim
26 words
The apparatus as described in claim 14 wherein: said colors are selected from the group consisting of white, black, silver, gold, brown, red, green and yellow.
References Cited (Backward Citations)
US88649A
Cited
US117237A
Cited
US850480A
Cited
FR657267A
Cited
US1984839A
Cited
US2219605A
Cited
US3349647A
Cited
US4527449A
Cited
WO1988001557A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-02-26 | 1993-08-28 | 1994-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-02-26 | 1997-08-28 | 1998-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-02-26 | 2001-08-28 | 2002-02-27 | $7700.00 | Window Closed / Lapsed |