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US5383383A Expired / Lapsed US ⏱️ 0.0 years remaining

Tool mounting means and implement therefor

Assignee: Black and Decker Inc
•
Filing: 1993-07-02
•
Granted: 1995-01-24
•
Expires: 2013-07-02
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Abstract

Abstract A saw (10) comprises a housing, a drive spindle (20) rotatably mounted in the housing and a circular saw blade (not shown) adapted to be releasably mounted on one end of the spindle. The blade fits over the threaded end (25) of the spindle and a nut (26) clamps the blade to the spindle. The spindle is in the form of a sleeve and is rotatable about a shaft (22) fixed in the housing. The bore (30) through the end of the spindle is of hexagonal section and corresponds with a bore (32) formed in the end of the shaft. A wrench (40) is used to remove the blade and has a socket (48) to engage the nut and a freely rotatable pin (50) which also has a hexagonal section and which is adapted to fit in the bores (30,32) when the socket is on the nut and lock the spindle to the shaft.

Inventors

  • 👤 Andrea Garuglieri

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 05:47
CPC Classifications
B; B25; B25B; B25B13/00; B25B13/48; B27; B27B; B27B5/00; B27B5/29; B27B5/30; B27B5/32; Y; Y10; Y10T; Y10T83/00; Y10T83/929; Y10T83/9372; Y10T83/9377; Y10T83/9379; Y10T83/9457; Y10T83/9464

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 115 words
A power tool comprising a housing, a shaft fixed in the housing, a drive spindle in the form of a sleeve journalled for rotation on said shaft, said drive spindle having a threaded end, a tool having an aperture for engagement with said threaded end of the spindle, screw means to engage said threaded end and clamp said tool to said spindle, a first bore of non-circular cross-section in said threaded end of the sleeve, a second concentric bore of non-circular cross-section in the end of said shaft, whereby an implement of corresponding non-circular cross-sections is insertable through said threaded end of the spindle and engaging said bores to lock rotationally said spindle and shaft.
Claim 2
Dependent Claim 115 words
A power tool comprising a housing, a shaft fixed in the housing, a drive spindle in the form of a sleeve journalled for rotation on said shaft, said drive spindle having a threaded end, a tool having an aperture for engagement with said threaded end of the spindle, screw means to engage said threaded end and clamp said tool to said spindle, a first bore of non-circular cross-section in said threaded end of the sleeve, a second concentric bore of non-circular cross-section in the end of said shaft, whereby an implement of corresponding non-circular cross-sections is insertable through said threaded end of the spindle and engaging said bores to lock rotationally said spindle and shaft.
Claim 3
Dependent Claim 27 words
A power tool according to claim 1, wherein said first and second bores through said threaded end of the spindle and said shaft have the same cross-section.
Claim 4
Dependent Claim 21 words
A power tool according to claim 1, wherein said threaded end is externally threaded and said screw means is a nut.
Claim 5
Dependent Claim 38 words
A power tool according to claim 1, wherein said threaded end is internally threaded and said screw means is a bolt which has a bore therethrough of cross-section sufficient to receive said implement in a rotationally free manner.

References Cited (Backward Citations)

DE8420700U1 Cited
US4005622A Cited
US4507999A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1998-01-23 1998-07-25 1999-01-24 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2002-01-23 2002-07-25 2003-01-24 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2006-01-23 2006-07-25 2007-01-24 $7700.00 Window Closed / Lapsed

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