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US4224969A Expired / Lapsed US ⏱️ 0.0 years remaining

Universal chuck adaptor

Assignee: Individual
•
Filing: 1979-06-14
•
Granted: 1980-09-30
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Expires: 1999-06-14
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Abstract

Abstract The present invention is a universal chuck adaptor which is used in combination with a yankee screwdriver in order to mechanically couple a drill chuck to the yankee screwdriver which includes a handle. The yankee screwdriver also includes a ratchet mechanism which is mechanically coupled to the handle and a release mechanism which is mechanically coupled to the ratchet mechanism. The universal chuck adaptor includes an integral member which has a cylindrical portion at its center, a right-handed, externally threaded cylindrical portion at one end with a left-handed, internally threaded bore and a truncated cylindrical portion with a notch. The truncated cylindrical portion is adapted to be slideably received within the release mechanism and secured thereby. The drill chuck is threadedly coupled to the right-handed, externally threaded cylindrical portion. A left-handed threaded screw securely coupled the drill chuck to the universal chuck adaptor through the left-handed, internally threaded bore.

Inventors

  • 👤 Jac A. Plessner

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 15:29
CPC Classifications
B; B25; B25F; B25F3/00; Y; Y10; Y10S; Y10S279/00; Y10S279/904; Y10S279/905; Y10T; Y10T279/00; Y10T279/34; Y10T279/3406; Y10T279/3412; Y10T403/00; Y10T403/51

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 146 words
A universal chuck adaptor in combination with a yankee screwdriver in order to mechanically couple a drill chuck to the yankee screwdriver which includes: a. a handle; b. a ratchet mechanism which is mechanically coupled to the handle; c. a release mechanism which is mechanically coupled to the ratchet mechanism, said universal chuck adaptor comprising: a. an integral member which has a cylindrical portion at its center, a right-handed, externally threaded, cylindrical portion at one end with a left-handed, internally threaded bore and a truncated cylindrical portion with a notch at the other end, whereby said truncated cylindrical portion is slideably received within the release mechanism and secured thereby and whereby the drill chuck is threadedly coupled to said right-handed, externally threaded cylindrical portion; and b. a left-handed threaded screw securely couples the drill chuck to said universal chuck adaptor through the left-handed, internally threaded bore.
Claim 2
Dependent Claim 146 words
A universal chuck adaptor in combination with a yankee screwdriver in order to mechanically couple a drill chuck to the yankee screwdriver which includes: a. a handle; b. a ratchet mechanism which is mechanically coupled to the handle; c. a release mechanism which is mechanically coupled to the ratchet mechanism, said universal chuck adaptor comprising: a. an integral member which has a cylindrical portion at its center, a right-handed, externally threaded, cylindrical portion at one end with a left-handed, internally threaded bore and a truncated cylindrical portion with a notch at the other end, whereby said truncated cylindrical portion is slideably received within the release mechanism and secured thereby and whereby the drill chuck is threadedly coupled to said right-handed, externally threaded cylindrical portion; and b. a left-handed threaded screw securely couples the drill chuck to said universal chuck adaptor through the left-handed, internally threaded bore.

References Cited (Backward Citations)

US942572A Cited
GB502348A Cited
US2874985A Cited
US3843143A Cited
US3869741A Cited
US3904301A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1983-09-30 1984-03-31 1984-09-30 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1987-09-30 1988-03-31 1988-09-30 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1991-09-30 1992-03-31 1992-09-30 $7700.00 Window Closed / Lapsed

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