US4811843A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protective deployment apparatus for rotary cutting tools
Assignee: Precision Carbide Tool Co Inc
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Filing: 1988-02-16
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Granted: 1989-03-14
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Expires: 2008-02-16
Abstract
Abstract A protective deployment apparatus for guarding the cutting regions of a rotary cutting tool against damage, wear and injury to users, which could be caused by such a cutting tool during packaging, transporting, handling, storing, and installation into conventional tool holding and processing implements. An apparatus housing includes a gripping region for securing the conventional gripping collar which is affixed around a rotary cutting tool, so as to facilitate insertion and retraction of the tool between tool holding implements and the apparatus itself. The gripping region maintains the rotary cutting tool in a centered aligned position with respect to the longitudinal axis of the apparatus, while at the same time, keeping the entire cutting portion of the tool isolated within the confines of the apparatus housing itself, while in the retracted position. Such secured alignment precludes inadvertent contact of the cutting portion of the tool with external objects, and with the interior wall of the housing, as well as with the interior walls of conventional tool holding implements. The tool protecting apparatus can be easily removed from conventional gripping elements after insertion, leaving the shank and cutting portions of the tool exposed for further use and/or processing. The apparatus can additionally be re-utilized to mechanically, and safely, retrieve and reposition the tool back into its retracted isolated position within the housing, without risk of injury to the operator, and without risk of damage to the tool itself.
Inventors
- 👤 John J. Stribiak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:21
CPC Classifications
B; B23; B23Q; B23Q13/00; Y; Y10; Y10T; Y10T408/00; Y10T408/89; Y10T408/907; Y10T408/96
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
367 words
A protective deployment apparatus for rotary cutting tools having shank and cutting portions for housing and shielding the cutting portion of such cutting tools during shipment and storage and for facilitating the deployment, installation and removal of said rotary cutting tool housed therewithin into conventional gripping elements of machine tool and rotary cutting tool processing equipment, in which said protective deployment apparatus cooperates to alternatively grip and release said tool through cooperation with a conventional gripping collar member radially deployed about the shank portion of said rotary cutting tool, said protective deployment apparatus comprising: substantially cylindrically shaped tool housing means, having a first end and second end opposite to said first end, for enclosing the cutting portion of said rotary cutting tool when said tool is in a first retracted position; tool collar gripping means operably positioned within said tool housing means for restrainably and releaseably fixing the position of said gripping collar member and, in turn, the rotary cutting tool affixed therewithin, in position within said tool housing means in said first retracted position; shank exposure means positioned at said first end of said tool housing means for exposing the shank portion of said cutting tool; said shank exposure means cooperating with said tool collar gripping means to permit said shank portion, and in turn, said rotary cutting tool, to be operably reciprocated between said first retracted position and a second extended position in which said cutting portion of said cutting tool passes through and out of said second end of said tool housing means with said gripping collar member being released from fixation within said tool collar gripping means; said tool collar gripping means serving to align said gripping collar with said conventional gripping elements of said machine tool and rotary cutting tool processing equipment, in said first retracted position, for release of said gripping collar therefrom upon said reciprocation of said rotary cutting tool into said second extended position, to enable restrained receipt of said gripping collar by said conventional gripping elements upon deployment of said rotary cutting tool to said fully extended position, for use of said cutting tool and conventional gripping elements in said machine tool and rotary cutting tool processing equipment.
Claim 2
Dependent Claim
367 words
A protective deployment apparatus for rotary cutting tools having shank and cutting portions for housing and shielding the cutting portion of such cutting tools during shipment and storage and for facilitating the deployment, installation and removal of said rotary cutting tool housed therewithin into conventional gripping elements of machine tool and rotary cutting tool processing equipment, in which said protective deployment apparatus cooperates to alternatively grip and release said tool through cooperation with a conventional gripping collar member radially deployed about the shank portion of said rotary cutting tool, said protective deployment apparatus comprising: substantially cylindrically shaped tool housing means, having a first end and second end opposite to said first end, for enclosing the cutting portion of said rotary cutting tool when said tool is in a first retracted position; tool collar gripping means operably positioned within said tool housing means for restrainably and releaseably fixing the position of said gripping collar member and, in turn, the rotary cutting tool affixed therewithin, in position within said tool housing means in said first retracted position; shank exposure means positioned at said first end of said tool housing means for exposing the shank portion of said cutting tool; said shank exposure means cooperating with said tool collar gripping means to permit said shank portion, and in turn, said rotary cutting tool, to be operably reciprocated between said first retracted position and a second extended position in which said cutting portion of said cutting tool passes through and out of said second end of said tool housing means with said gripping collar member being released from fixation within said tool collar gripping means; said tool collar gripping means serving to align said gripping collar with said conventional gripping elements of said machine tool and rotary cutting tool processing equipment, in said first retracted position, for release of said gripping collar therefrom upon said reciprocation of said rotary cutting tool into said second extended position, to enable restrained receipt of said gripping collar by said conventional gripping elements upon deployment of said rotary cutting tool to said fully extended position, for use of said cutting tool and conventional gripping elements in said machine tool and rotary cutting tool processing equipment.
Claim 3
Dependent Claim
178 words
The protective deployment apparatus according to claim 1 in which the invention further includes tool retrieving means for accepting and repositioning said gripping collar member, and in turn, said rotary cutting tool from said second extended position within said conventional gripping elements to said first retracted position within said substantially cylindrically shaped tool housing means, said retrieving means including the shank portion of said rotary cutting tool extending beyond said shank exposure means of said substantially cylindrically shaped tool housing means, serving while in said extended position to enable alignment of said rotary cutting tool therewith and to further enable operable reciprocation of said gripping collar member, and in turn, said rotary cutting tool, between said second extended position and said first retracted position, in which said gripping collar member about said rotary cutting tool is released from said conventional gripping elements, slidably aligned with said tool collar gripping means within said tool housing means and retracted into same to longitudinally isolate said cutting portion of said rotary cutting tool within said substantially cylindrically shaped tool housing means.
Claim 4
Dependent Claim
63 words
The invention according to claim 1 wherein said substantially cylindrically shaped tool housing means is of a longitudinal length at least as long as the longitudinal length of that portion of said rotary cutting tool contained therewithin said first retracted position so as to isolate said cutting portion therewithin from contact with other objects, when said tool is in said first retracted position.
Claim 5
Dependent Claim
61 words
The invention according to claim 1 in which said tool collar gripping means comprises an anular flange region within said tool housing means; said anular flange region having an internal diameter approximately equal to the outer diameter of said gripping collar member so as to prompt an interference fit therebetween when said rotary cutting tool is in said first retracted position.
Claim 6
Dependent Claim
65 words
The invention according to claim 1 in which said tool collar gripping means comprises a concentrically positioned plurality of rib means within said tool housing means; said plurality of rib members describing an internal diameter approximately equal to the outer diameter of said gripping collar member so as to prompt an interference fit therebetween when said rotary cutting tool is in said first retracted position.
Claim 7
Dependent Claim
135 words
The invention according to claim 5 in which one or more of said rib members includes corresponding prompting means operably positioned at the lower tip of said one or more rib members for facilitating the secured alignment, and, the alternative release and grasping of said gripping collar member, and, in turn, said rotary cutting tool, by said tool collar gripping means respectively from and into said first retracted position; said prompting means in said one or more rib members operably expanding said conventional gripping elements upon operable engagement of said protective deployment apparatus with said conventional gripping elements to facilitate passage of said gripping collar member into and out of said conventional gripping elements; said prompting means permitting contraction of said gripping element upon disengagement of said protective deployment apparatus from said conventional gripping elements.
Claim 8
Dependent Claim
85 words
The invention according to claim 6 in which said conventional gripping element comprises a conventional tanged gripping member; said prompting means in said one or more rib members comprising a chamfered lower edge capable of prompting respectively, aligned ones of said tanged gripping members radially outwardly as said protective deployment apparatus is operably engaged with said conventional gripping elements; said chamfered lower edge releasing said respectively aligned tanged gripping members to contract radially inwardly upon disengagement between said protective deployment apparatus and said gripping elements.
Claim 9
Dependent Claim
63 words
The invention according to claim 1 wherein said conventional gripping elements for use in said conventional machine tool and rotary cutting tool processing equipment comprises a cylindrical grip member having a plurality of alternatively expandable and contractible tang means for alternative receipt and release of said gripping collar member upon reciprocation of said rotary cutting tool between said extended and retracted positions respectively.
Claim 10
Dependent Claim
53 words
The invention according to claim 1 wherein said conventional gripping element for use in said conventional machine tool and rotary cutting tool processing equipment comprises a cylindrical grip member for alternative receipt and release of said gripping collar member, upon reciprocation of said rotary cutting tool between said extended and retracted positions respectively.
Claim 11
Dependent Claim
33 words
The invention according to claim 1 wherein said rotary cutting tool processing equipment comprises rotary cutting tool reconditioning means for sharpening at least some of said cutting portion of said rotary cutting tool.
Claim 12
Dependent Claim
32 words
The invention according to claim 1 wherein said rotary cutting tool processing equipment comprises an ultrasonic cleaning apparatus for cleaning at least some of said cutting portion of said rotary cutting tool.
Claim 13
Dependent Claim
79 words
The protective deployment apparatus according to claim 1 in which the invention further comprises pressure application surface means operably positioned and emanating outwardly from outer periphery of said top surface of said first end of said substantially cylindrically shaped tool housing means, for facilitating vertical engagement and restraint of said protective deployment apparatus relative to said conventional gripping elements prior to and during reciprocation of said rotary cutting tool between said first retracted position and said second extended position.
Claim 14
Dependent Claim
41 words
The invention according to claim 12 in which said pressure application surface means comprises obliquely angled pressure regions relative to said top surface of said end of said substantially cylindrically shaped tool housing means, for ease in asserting manual pressure thereto.
Claim 15
Dependent Claim
20 words
The invention according to claim 13 in which said obliquely angled pressure regions are further embossed with tactile gripping ridges.
Claim 16
Dependent Claim
46 words
The protective deployment apparatus according to claim 1 wherein the invention further comprises pullback means operably secured to said outer periphery of said substantially cylindrically shaped tool housing means to facilitate the vertical removal and release of said protective deployment apparatus from said conventional gripping elements.
Claim 17
Dependent Claim
32 words
The invention according to claim 15 wherein said pullback means comprise obliquely angled pullback regions relative to the longitudinal walls of said tool housing means, for ease and applying manual pressure thereto.
Claim 18
Dependent Claim
20 words
The invention according to claim 16 in which said obliquely angled pullback regions are further embossed with tactile gripping ridges.
Claim 19
Dependent Claim
39 words
The protective deployment apparatus according to claim 1 wherein the invention further comprises knurling means operably applied to the outer periphery of the longitudinal walls of said substantially cylindrically shaped tool housing means for facilitated manual manipulation and restraint.
Claim 20
Dependent Claim
34 words
The invention according to claim 1 in which the longitudinal walls of said tool housing means are flared outwardly proximate to said second end to facilitate engagement of same with said conventional gripping elements.
Claim 21
Dependent Claim
40 words
The invention according to claim 1 in which said shank exposure means includes a chamfered edge positioned therebelow to facilitate the slidable positioning of the top of said shank portion of said rotary cutting tool through said shank exposure means.
Claim 22
Dependent Claim
44 words
The invention according to claim 1 in which the invention further includes indicia means operably and visibly applied to the longitudinal walls of said substantially cylindrically shaped tool housing means to facilitate the identification of structural specifications of the rotary cutting tool contained therewithin.
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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) | 1992-03-13 | 1992-09-12 | 1993-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-03-13 | 1996-09-12 | 1997-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-03-13 | 2000-09-12 | 2001-03-14 | $7700.00 | Window Closed / Lapsed |