US3883943A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of manufacturing drill chucks
Assignee: Black and Decker Corp
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Filing: 1973-11-21
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Granted: 1975-05-20
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Expires: 1993-11-21
Abstract
Abstract A process of making drill chuck nuts including the steps of selecting a piece of bar stock, forming a hole therein, forming the outside diameter configuration for a chuck nut on the bar stock, forming the inside diameter configuration of the chuck nut in the bar stock, cutting a pair of breaking slots in the external surface of the stock, cutting internal threads in the stock, cutting off the formed nut, and breaking the nut at the breaking slots. The broken nut parts are thereafter assembled to a formed chuck body having jaws in place thereon, and a sleeve is placed in retaining relation over the parts.
Inventors
- 👤 William Hugh Dietzen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:08
CPC Classifications
B; B23; B23B; B23B31/00; B23B31/02; B23B31/10; B23B31/12; B23B31/1207; B23P; B23P13/00; B23P13/02; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17615; Y10T279/17623; Y10T279/17632; Y10T29/00; Y10T29/49; Y10T29/49789; Y10T29/4979; Y10T29/49798; Y10T29/49826; Y10T29/49995; Y10T29/49996
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
97 words
A method of manufacturing drill chucks comprising the steps of forming a hollow chuck nut body, cutting a pair of diametrically opposed, breaking slots in said hollow body, cutting inteRnal threads in said body at a positive and known angular location with respect to said breaking slots, breaking said hollow body at said breaking slots to form a pair of semicylindrical nut parts, assembling said nut parts to a chuck body and chuck jaws subassembly with the threads on said nut parts engaged with threads on said chuck jaws, and assembling a sleeve over said nut parts.
Claim 2
Independent Claim
97 words
A method of manufacturing drill chucks comprising the steps of forming a hollow chuck nut body, cutting a pair of diametrically opposed, breaking slots in said hollow body, cutting inteRnal threads in said body at a positive and known angular location with respect to said breaking slots, breaking said hollow body at said breaking slots to form a pair of semicylindrical nut parts, assembling said nut parts to a chuck body and chuck jaws subassembly with the threads on said nut parts engaged with threads on said chuck jaws, and assembling a sleeve over said nut parts.
Claim 3
Independent Claim
129 words
A method of manufacturing drill chucks comprising the steps of selecting a chuck nut constructed of hollow stock, continuously rotating said hollow stock from a power source connected thereto, through positive gearing, cutting a pair of diametrically opposed, breaking slots in said continuously rotating stock by continuously rotating cutter means fed axially toward said stock by means connected to said gearing, cutting internal threads in said continuously rotating, hollow stock by means positively and directly connected to said power source through said gearing, breaking said nut at said breaking slots, and assembling the broken parts of said nut to a chuck body having threaded jaws assembled thereto by locating said nut parts axially of said body and engaging the threads of said parts with the threads on said jaws.
Claim 4
Independent Claim
129 words
A method of manufacturing drill chucks comprising the steps of selecting a chuck nut constructed of hollow stock, continuously rotating said hollow stock from a power source connected thereto, through positive gearing, cutting a pair of diametrically opposed, breaking slots in said continuously rotating stock by continuously rotating cutter means fed axially toward said stock by means connected to said gearing, cutting internal threads in said continuously rotating, hollow stock by means positively and directly connected to said power source through said gearing, breaking said nut at said breaking slots, and assembling the broken parts of said nut to a chuck body having threaded jaws assembled thereto by locating said nut parts axially of said body and engaging the threads of said parts with the threads on said jaws.
Claim 5
Independent Claim
104 words
A method of manufacturing a drill chuck nut which comprises the steps of forming a hollow nut body having a contoured cross section, continuously rotating said nut body from power means connected thereto by positive gearing, cutting a pair of diametrically opposed, axially extending slots in said continuously rotating body by a continuously rotating cutter positively connected to said power means through said gearing, and forming internal threads in said continuously rotating body by a generally axially moving thread cutting tool positively connected to said power means through said gearing, and breaking said nut into a pair of semicylindrical parts along said breaking slots.
Claim 6
Independent Claim
104 words
A method of manufacturing a drill chuck nut which comprises the steps of forming a hollow nut body having a contoured cross section, continuously rotating said nut body from power means connected thereto by positive gearing, cutting a pair of diametrically opposed, axially extending slots in said continuously rotating body by a continuously rotating cutter positively connected to said power means through said gearing, and forming internal threads in said continuously rotating body by a generally axially moving thread cutting tool positively connected to said power means through said gearing, and breaking said nut into a pair of semicylindrical parts along said breaking slots.
Claim 7
Independent Claim
142 words
A method of manufacturing drill chucks comprising the steps of forming a hollow chuck nut body, cutting a pair of differently shaped, diametrically opposed, breaking slots in said hollow body by power driven cutter means, cutting internal threads in said body by power driven cutter means positively and continuously connected to said slot forming cutter means at a positive and known angular location with respect to the individual ones of said breaking slots, breaking said hollow body at said breaking slots to form a pair of semicylindrical nut parts, angularly orienting the nut parts to a chuck body and chuck jaws subassembly using the differently shaped slots, and assembling said nut parts to said chuck body and chuck jaws subassembly with the threads on said nut parts engaged with threads on said chuck jaws, and assembling a sleeve over said nut parts.
Claim 8
Independent Claim
142 words
A method of manufacturing drill chucks comprising the steps of forming a hollow chuck nut body, cutting a pair of differently shaped, diametrically opposed, breaking slots in said hollow body by power driven cutter means, cutting internal threads in said body by power driven cutter means positively and continuously connected to said slot forming cutter means at a positive and known angular location with respect to the individual ones of said breaking slots, breaking said hollow body at said breaking slots to form a pair of semicylindrical nut parts, angularly orienting the nut parts to a chuck body and chuck jaws subassembly using the differently shaped slots, and assembling said nut parts to said chuck body and chuck jaws subassembly with the threads on said nut parts engaged with threads on said chuck jaws, and assembling a sleeve over said nut parts.
Claim 9
Independent Claim
124 words
A method of manufacturing drill chucks comprising the steps of selecting a chuck nut constructed of hollow stock, continuously rotating said hollow stock from a power source positively connected thereto, cutting a pair of diametrically opposed, breaking slots in said continuously rotating stock by continuously rotating cutter means fed axially toward said stock by means positively connected to said power source, cutting internal threads in said continuously rotating, hollow stock by means positively connected to said power source, breaking said nut at said breaking slots, and assembling the broken parts of said nut to a chuck body having threaded jaws assembled thereto by locating said nut parts axially of said body and engaging the threads of said parts with the threads on said jaws.
Claim 10
Independent Claim
124 words
A method of manufacturing drill chucks comprising the steps of selecting a chuck nut constructed of hollow stock, continuously rotating said hollow stock from a power source positively connected thereto, cutting a pair of diametrically opposed, breaking slots in said continuously rotating stock by continuously rotating cutter means fed axially toward said stock by means positively connected to said power source, cutting internal threads in said continuously rotating, hollow stock by means positively connected to said power source, breaking said nut at said breaking slots, and assembling the broken parts of said nut to a chuck body having threaded jaws assembled thereto by locating said nut parts axially of said body and engaging the threads of said parts with the threads on said jaws.
Claim 11
Independent Claim
106 words
A method of manufacturing a drill chuck nut which comprises the steps of forming a hollow nut body having a contoured cross section, continuously rotating said nut body from power means connected thereto by a positive, non-slip transmission, cutting a pair of diametrically opposed, axially extending slots in said continuously rotating body by a continuously rotating cutter positively connected to said power means through said transmission, and forming inteRnal threads in said continuously rotating body by a generally axially moving thread cutting tool positively connected to said power means through said transmission and breaking said nut into a pair of semicylindrical parts along said breaking slots.
Claim 12
Independent Claim
106 words
A method of manufacturing a drill chuck nut which comprises the steps of forming a hollow nut body having a contoured cross section, continuously rotating said nut body from power means connected thereto by a positive, non-slip transmission, cutting a pair of diametrically opposed, axially extending slots in said continuously rotating body by a continuously rotating cutter positively connected to said power means through said transmission, and forming inteRnal threads in said continuously rotating body by a generally axially moving thread cutting tool positively connected to said power means through said transmission and breaking said nut into a pair of semicylindrical parts along said breaking slots.
Claim 13
Independent Claim
92 words
A method of manufacturing a drill chuck nut which comprises the steps of forming a hollow nut body having a contoured cross section, continuously rotating said nut body from power means connected thereto by a positive, non-slip transmission, cutting a pair of diametrically opposed, axially extending slots in said continuously rotating body by a continuously rotating cutter positively connected to said power means through said transmission, and forming internal threads in said continuously rotating body by a generally axially moving thread cutting tool positively connected to said power means through said transmission.
Claim 14
Independent Claim
92 words
A method of manufacturing a drill chuck nut which comprises the steps of forming a hollow nut body having a contoured cross section, continuously rotating said nut body from power means connected thereto by a positive, non-slip transmission, cutting a pair of diametrically opposed, axially extending slots in said continuously rotating body by a continuously rotating cutter positively connected to said power means through said transmission, and forming internal threads in said continuously rotating body by a generally axially moving thread cutting tool positively connected to said power means through said transmission.
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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) | 1978-05-19 | 1978-11-18 | 1979-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-19 | 1982-11-18 | 1983-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-19 | 1986-11-18 | 1987-05-20 | $7700.00 | Window Closed / Lapsed |