US3882737A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drill-like driving device
Assignee: Stryker Corp
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Filing: 1973-12-27
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Granted: 1975-05-13
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Expires: 1993-12-27
Abstract
Abstract A driving device including a right-angle handpiece assembly having a casing containing an input shaft, an output shaft and means drivingly connecting same. A bone drill attachment is connectible to the handpiece assembly and includes a cylindrical extension mountable upon the output end of the casing and concentric inner and outer drill bits which project from said extension. The inner drill bit is connectible to the output shaft by a pair of clutch mechanisms which are normally spring-biased into a disconnected position. The outer drill bit normally rotates with the inner drill bit but is permitted to move axially and angularly relative to the inner drill bit through a predetermined distance. The cutting end of the inner drill bit extends axially beyond the cutting end of the outer drill bit. Alternately, a wire driving attachment can be connected to the handpiece assembly and includes a chuck structure mountable upon the output end of the casing and drivingly connectible to the output shaft. The chuck structure has a continuous opening therethrough which aligns with a through opening in the casing for receiving therein an elongated member, such as a wire.
Inventors
- 👤 Paul E Crim
- 👤 Wayne Warfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:41
CPC Classifications
B; B23; B23Q; B23Q5/00; B23Q5/02; B23Q5/04; B23Q5/043; B23Q5/045; A; A61; A61B; A61B17/00; A61B17/16; A61B17/1613; A61B17/1615; A61B17/1617; A61B17/1633; A61B17/1697; A61B2017/00535; A61B2017/00544; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19023; Y10T74/19074; Y10T74/19112
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
295 words
A drill-like driving assembly, comprising: substantially T-shaped casing means having a main housing part and a handle part fixedly secured to said main housing part at a location disposed intermediate the ends thereof, said main housing part and said handle part comprising elongated tubular members disposed with their longitudinally extending axes positioned to substantially intersect one another at substantially right angles; input means rotatably supported within the interior of said handle part, said input means having a rotatable coupling member disposed adjacent the free end of said handle part adapted for connection to an external power source; elongated output shaft means rotatably disposed within and extending longitudinally of said main housing part, said output shaft means having an opening extending continuously therethrough in a direction substantially parallel to the longitudinally extending direction of said main housing part, said output shaft means also having first and second torque transmitting coupling portions provided thereon adjacent the opposite free ends thereof; gear means drivingly connected between said input means and said output shaft means for transmitting rotation therebetween, said gear means being disposed adjacent the junction of said main housing part and said handle part and including first and second meshing gear members mounted for rotation about axes substantially perpendicular to one another; and driven means detachably connectible to said output shaft means and rotatable thereby, said driven means including a stationary housing member releasably attached to said casing means and driven shaft means rotatably supported within said housing member, said driven shaft means including means for releasably and nonrotatably engaging a working element, said driven shaft means also having coupling means associated therewith and releasably engageable with one of said first and second coupling portions for drivingly connecting said driven shaft means to said output shaft means.
Claim 2
Dependent Claim
295 words
A drill-like driving assembly, comprising: substantially T-shaped casing means having a main housing part and a handle part fixedly secured to said main housing part at a location disposed intermediate the ends thereof, said main housing part and said handle part comprising elongated tubular members disposed with their longitudinally extending axes positioned to substantially intersect one another at substantially right angles; input means rotatably supported within the interior of said handle part, said input means having a rotatable coupling member disposed adjacent the free end of said handle part adapted for connection to an external power source; elongated output shaft means rotatably disposed within and extending longitudinally of said main housing part, said output shaft means having an opening extending continuously therethrough in a direction substantially parallel to the longitudinally extending direction of said main housing part, said output shaft means also having first and second torque transmitting coupling portions provided thereon adjacent the opposite free ends thereof; gear means drivingly connected between said input means and said output shaft means for transmitting rotation therebetween, said gear means being disposed adjacent the junction of said main housing part and said handle part and including first and second meshing gear members mounted for rotation about axes substantially perpendicular to one another; and driven means detachably connectible to said output shaft means and rotatable thereby, said driven means including a stationary housing member releasably attached to said casing means and driven shaft means rotatably supported within said housing member, said driven shaft means including means for releasably and nonrotatably engaging a working element, said driven shaft means also having coupling means associated therewith and releasably engageable with one of said first and second coupling portions for drivingly connecting said driven shaft means to said output shaft means.
Claim 3
Dependent Claim
59 words
A drill-like driving assembly according to claim 1, wherein said input means includes first and second shaft parts and a reduction gear assembly connected to and between said first and second shaft parts for producing a substantial differential between the rotational speeds of the first and secoind shaft parts, the second shaft part being connected to said gear means.
Claim 4
Dependent Claim
26 words
A drill-like driving assembly according to claim 1, wherein said driven means includes jaw means disposed for engaging an elongated rodlike element, such as a wire.
Claim 5
Dependent Claim
101 words
A drill-like driving assembly according to claim 1, wherein the first and second coupling portions are provided adjacent the opposite ends of said output shaft means, each coupling portion including a pair of substantially diametrically opposed, axially elongated slots extending axially inwardly from the free end of said output shaft means, and said driven shaft means having an end portion adapted to be slidably disposed within the interior of said output shaft means and having a radially extending projection adapted to extend into at least one of said slots for nonrotatably coupling said driven shaft means to said output shaft means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-05-12 | 1978-11-11 | 1979-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-12 | 1982-11-11 | 1983-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-12 | 1986-11-11 | 1987-05-13 | $7700.00 | Window Closed / Lapsed |