Patent US4973205A successfully refreshed from Google Patents.
US4973205A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hand drill apparatus
Assignee: Individual
•
Filing: 1989-12-18
•
Granted: 1990-11-27
•
Expires: 2009-12-18
Abstract
Abstract An apparatus is set forth wherein a hand drill includes a conventionally configured elongate housing with an elongate orthogonally extending handle relative thereto, with a forwardly mounted collet to receive drill bits therewithin. The apparatus further includes a transparent drill bit housing pivotally mounted to an upper surface of the central housing body of the drill formed with a snap-fit cover to receive drill bits in a convenient and accessible manner. A bifurcated chuck-key holder includes resilient legs defining a slot to resiliently secure a chuck-key therewithin. A series of spirit levels are further provided wherein the levels include a mercury encapsulate leveling member to accommodate vibration in use of the drill, wherein the levels are positioned within an extension housing of the drill bit housing to provide various visible orientations of the levels during use of the drill. Further, an illumination member in operative association with the trigger switch of the drill is mounted between the chuck-key holder and the associated chuck, wherein optionally the illumination member may be provided within a telescoping housing to provide enhanced illumination of workpieces.
Inventors
- 👤 Silas Spaulding
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:35
CPC Classifications
B; B25; B25F; B25F5/00; B25F5/02; B25F5/021; B25F5/022; B25F5/029; Y; Y10; Y10T; Y10T279/00; Y10T279/34; Y10T279/3431; Y10T279/3443; Y10T408/00; Y10T408/21; Y10T408/96
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
372 words
A hand drill apparatus comprising an elongate, longitudinally aligned central housing having a handle portion mounted integrally thereto at a rear portion of the central housing, and a collet rotatably mounted at a forward surface of the central housing longitudinally aligned therewith, and a trigger switch mounted in the handle for selective operative energization of the collet, and the apparatus further comprising, an illumination member mounted to the forward surface of the central housing underlying the collet, and a collet key holder means defining a slot for securement of a collet key therewithin, and a housing means mounted overlying a top surface of the central housing defining a cavity therewithin for selective securement of a plurality of drill bits therewithin, and a housing boss formed rearwardly of the housing means, and at least one spirit level mounted completely within the housing boss, and wherein the housing boss is integrally formed to the central housing and the handle at an exterior intersection of the central housing and the handle, wherein the housing boss includes a top planar surface orthogonally aligned relative to a rear planar surface, and the at least one spirit level member mounted within the top planar surface longitudinally aligned with the central housing, and including a further spirit level member mounted rearwardly of the at least one spirit level member within the top surface of the housing boss, and further including a yet further spirit level member mounted within a rear surface of the housing boss aligned parallel to the further spirit level member, and the at least one spirit level member, the further spirit level member, and the yet further spirit level member each including a mercury sphere floatingly contained within each spirit level member to indicate orientation of the central housing and handle in use, and wherein the collet key holder means is of flexible construction and includes a bifurcated forward end defining the slot therewithin, wherein the bifurcated forward end is defined by a respective first and second flexible finger member to receive the collet key therewithin, and the collet key holder mounted to the forward surface of the central housing underlying the collet, and defining a predetermined length equal to a length defined by the collet.
Claim 2
Dependent Claim
372 words
A hand drill apparatus comprising an elongate, longitudinally aligned central housing having a handle portion mounted integrally thereto at a rear portion of the central housing, and a collet rotatably mounted at a forward surface of the central housing longitudinally aligned therewith, and a trigger switch mounted in the handle for selective operative energization of the collet, and the apparatus further comprising, an illumination member mounted to the forward surface of the central housing underlying the collet, and a collet key holder means defining a slot for securement of a collet key therewithin, and a housing means mounted overlying a top surface of the central housing defining a cavity therewithin for selective securement of a plurality of drill bits therewithin, and a housing boss formed rearwardly of the housing means, and at least one spirit level mounted completely within the housing boss, and wherein the housing boss is integrally formed to the central housing and the handle at an exterior intersection of the central housing and the handle, wherein the housing boss includes a top planar surface orthogonally aligned relative to a rear planar surface, and the at least one spirit level member mounted within the top planar surface longitudinally aligned with the central housing, and including a further spirit level member mounted rearwardly of the at least one spirit level member within the top surface of the housing boss, and further including a yet further spirit level member mounted within a rear surface of the housing boss aligned parallel to the further spirit level member, and the at least one spirit level member, the further spirit level member, and the yet further spirit level member each including a mercury sphere floatingly contained within each spirit level member to indicate orientation of the central housing and handle in use, and wherein the collet key holder means is of flexible construction and includes a bifurcated forward end defining the slot therewithin, wherein the bifurcated forward end is defined by a respective first and second flexible finger member to receive the collet key therewithin, and the collet key holder mounted to the forward surface of the central housing underlying the collet, and defining a predetermined length equal to a length defined by the collet.
Claim 3
Dependent Claim
87 words
An apparatus as set forth in claim 1 wherein the housing means is transparent and includes a rear hinge coextensively mounted to a rear end of the housing means to pivotally mount the housing means to the top surface of the central housing, and wherein the housing means further includes an elongate, concave groove oriented parallel to the hinge, the concave groove cooperative with a convex, flexible projection mounted to the top surface of the central housing to selectively secure the housing means to the flexible projection.
Claim 4
Dependent Claim
46 words
An apparatus as set forth in claim 2 wherein the housing means further includes a snap-fit cover thereon to provide selective access to the housing means, the snap-fit cover selectively securable to a base member, the base member mounting the hinge and the convex groove therewithin.
Claim 5
Dependent Claim
44 words
An apparatus as set forth in claim 3 wherein the illumination means is mounted underlying the collet, and the illumination means includes an elongate, cylindrical housing, the elongate, cylindrical housing telescopingly receivable within a cylindrical cavity formed within the central housing underlying the collet.
References Cited (Backward Citations)
US3864839A
Cited
DE2362550A1
Cited
FR2302164A1
Cited
JPS56313A
Cited
US4402141A
Cited
US4508221A
Cited
US4457078A
Cited
US4432146A
Cited
DE3525352A1
Cited
US4656749A
Cited
US4797040A
Cited
US4785544A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-11-26 | 1994-05-28 | 1994-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-11-26 | 1998-05-28 | 1998-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-11-26 | 2002-05-28 | 2002-11-27 | $7700.00 | Window Closed / Lapsed |