Patent US4798503A successfully refreshed from Google Patents.
US4798503A
Expired / Lapsed
US
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Tenon forming tool
Assignee: Individual
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Filing: 1988-02-05
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Granted: 1989-01-17
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Expires: 2008-02-05
Abstract
Abstract A tenon forming tool which is an attachment for a powered hand drill.
Inventors
- 👤 Brian M. Huju
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:51
CPC Classifications
B; B23; B23B; B23B51/00; B23B51/0081; B23B49/00; B23B49/04; B23B2251/00; B23B2251/20; B23B2251/204; B23B2251/60; B23B2251/603; B23B2251/606; B23B2270/00; B23B2270/20; Y; Y10; Y10S; Y10S408/00; Y10S408/713; Y10T; Y10T408/00; Y10T408/50; Y10T408/89; Y10T408/892; Y10T408/8923; Y10T408/895; Y10T408/896; Y10T408/8973; Y10T408/899
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
155 words
A tenon forming tool as an attachment for a powered hand drill, having in combination, an elongated cylindrical body portion, a shank of reduced diameter relative to said body portion being integral therewith and extending rearwardly thereof, a bore in said body portion of a diameter to receive a tenon to be formed and having a depth corresponding at least to the length of a tenon to be formed, a counterbore in said shank extending from said bore in said body portion and communicating therewith, a face portion of said body portion extending forwardly thereof and flaring outwardly thereof, a plurality of radial slots in said face portion, a cutting blade mounted adjacent each slot position to have the blade cuttings discharged therethrough, a pilot drill disposed axially of said bore and extending into said counterbore, a plurality of slots spaced about said body portion, and means in connection with said shank securing said drill.
Claim 2
Dependent Claim
155 words
A tenon forming tool as an attachment for a powered hand drill, having in combination, an elongated cylindrical body portion, a shank of reduced diameter relative to said body portion being integral therewith and extending rearwardly thereof, a bore in said body portion of a diameter to receive a tenon to be formed and having a depth corresponding at least to the length of a tenon to be formed, a counterbore in said shank extending from said bore in said body portion and communicating therewith, a face portion of said body portion extending forwardly thereof and flaring outwardly thereof, a plurality of radial slots in said face portion, a cutting blade mounted adjacent each slot position to have the blade cuttings discharged therethrough, a pilot drill disposed axially of said bore and extending into said counterbore, a plurality of slots spaced about said body portion, and means in connection with said shank securing said drill.
Claim 3
Dependent Claim
152 words
A tenon forming tool as an attachment for a powered hand drill, having in combination, an elongated cylindrical body portion, a shank of reduced diameter relative to said body portion being integral therewith and extending rearwardly thereof, a bore in said body portion of a diameter to receive a tenon to be formed and having a depth corresponding at least to the length of the tenon to be formed, a counterbore in said shank extending from said bore in said body portion and communicating therewith, a face portion of said body portion extending outwardly laterally thereof, a plurality of radial slots in said face portion, a cutting blade mounted adjacent each slot position to have the blade cuttings discharged therethrough, a pilot drill disposed axially of said bore and extending into said counterbore, a plurality of slots spaced about said body portion, and means in connection with said shank securing said drill.
Claim 4
Dependent Claim
152 words
A tenon forming tool as an attachment for a powered hand drill, having in combination, an elongated cylindrical body portion, a shank of reduced diameter relative to said body portion being integral therewith and extending rearwardly thereof, a bore in said body portion of a diameter to receive a tenon to be formed and having a depth corresponding at least to the length of the tenon to be formed, a counterbore in said shank extending from said bore in said body portion and communicating therewith, a face portion of said body portion extending outwardly laterally thereof, a plurality of radial slots in said face portion, a cutting blade mounted adjacent each slot position to have the blade cuttings discharged therethrough, a pilot drill disposed axially of said bore and extending into said counterbore, a plurality of slots spaced about said body portion, and means in connection with said shank securing said drill.
References Cited (Backward Citations)
US72436A
Cited
US1647395A
Cited
US1551915A
Cited
US1593654A
Cited
US1745779A
Cited
US2800812A
Cited
US2804895A
Cited
US3365773A
Cited
US3673656A
Cited
US3817649A
Cited
US3945753A
Cited
US4205493A
Cited
US4295763A
Cited
GB2104808A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-01-17 | 1992-07-18 | 1993-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-01-17 | 1996-07-18 | 1997-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-01-17 | 2000-07-18 | 2001-01-17 | $7700.00 | Window Closed / Lapsed |