Patent US3852884A successfully refreshed from Google Patents.
US3852884A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Winding and tightening tool and method for manufacturing same
Assignee: Individual
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Filing: 1973-10-18
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Granted: 1974-12-10
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Expires: 1993-10-18
Abstract
Abstract An angle drive manually-operated tool as for winding and tightening around a tooth, a matrix band pre-formed into a loop and having one end wound into a cylindrical coil having a central socket, the tool having a winding member engageable to said socket. Said tool comprising, in combination, a palm grip rotatably mounted on one end of an elongated rotatable driving member and on its other end a replaceably mounted flexible drive sleeve unit with a pre-angled guide shaft internally and pivotably suspended therein, thereby providing said rotatably angle drive tool with having on its terminal end a rotatable winding member, which automatically pivots and aligns with the axis of said matrix coil socket, said tool includes an internal torque-limiting means in said driving member.
Inventors
- 👤 H Lazarus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:40
CPC Classifications
A; A61; A61C; A61C3/00; A61C5/00; A61C5/80; A61C5/85; A61C1/00; A61C1/08; A61C1/18; A61C1/185; A61C1/186
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
197 words
An angle drive manually operable tool to wind and tighten around a tooth a matrix band formed into a loop and having one end spirally wound to form a band-tightening coil provided with a central socket, said tool comprising in combination, an elongated driving member, a palm grip rotatably mounted upon one end of said member for movement about the axis thereof, a coreless rotatable flexible drive sleeve unit with sockets at each end thereof, with said sleeve having an internally pivotable angularly bent guide shaft therein, said shaft being bent prior to assembly and is internally suspended thereafter through the length of the core of the flexible sleeve unit, with said shaft''s terminations rotatably engaged with sockets to hold said shaft against axial disposition at each end, and with one such socketed collar being replaceably engageable with said driving member, and with the other socket being part of a chuck, having a winding member adapted for controlled depth insertion in said chuck and with said winding member engageable with the central socket of a matrix band coil for winding and tightening of said coil, and with said driving member being provided with a torque limiting means.
Claim 2
Dependent Claim
197 words
An angle drive manually operable tool to wind and tighten around a tooth a matrix band formed into a loop and having one end spirally wound to form a band-tightening coil provided with a central socket, said tool comprising in combination, an elongated driving member, a palm grip rotatably mounted upon one end of said member for movement about the axis thereof, a coreless rotatable flexible drive sleeve unit with sockets at each end thereof, with said sleeve having an internally pivotable angularly bent guide shaft therein, said shaft being bent prior to assembly and is internally suspended thereafter through the length of the core of the flexible sleeve unit, with said shaft''s terminations rotatably engaged with sockets to hold said shaft against axial disposition at each end, and with one such socketed collar being replaceably engageable with said driving member, and with the other socket being part of a chuck, having a winding member adapted for controlled depth insertion in said chuck and with said winding member engageable with the central socket of a matrix band coil for winding and tightening of said coil, and with said driving member being provided with a torque limiting means.
Claim 3
Dependent Claim
54 words
An angle drive tool as in claim 1 in which said palm grip is circular in plan view and has opposite flat parallel faces, with a deep socket therein spaced between said flat faces and an annular groove substantially perpendicular to and transversing said socket, and with said socket receivable of said driving member.
Claim 4
Dependent Claim
91 words
An angle drive tool as in claim 2 in which said driving member comprised of a relatively elongated member with an annular groove on its one end for rotatable engagement in said socket of said palm grip and a locking pin disposed in said perpendicular groove of said palm grip transversely engaging the annular groove for rotation of said driving member in said palm grip but preventing relative axial movement therebetween said driving member and said palm grip, and with said driving member replaceably engageable with a flexible drive sleeve unit.
Claim 5
Dependent Claim
55 words
An angle drive tool as in claim 3 in which said driving member has a deep axial socket in its end opposite said palm grip whereby said socket which is receivable of a complementary long collar on one end of a flexible drive sleeve unit is replaceably inserted and secured therein to said driving member.
Claim 6
Dependent Claim
92 words
An angle drive tool as in claim 1 in which said flexible sleeve has suspended within its core, an angularly bent guide shaft which is encased within said sleeve unit by a long socketed collar on its one end that supports said suspended preangled shaft for free pivotable movement, therein said socket while at said other end of said flexible sleeve assembly unit, a rotabably mounted socketed chuck supports said other end of preangled guide shaft which thereby permits said tool to automatically pivot into self-alignment with the coil it is winding.
Claim 7
Dependent Claim
153 words
An angle drive tool as in claim 1 in which a cylindrical chuck, with a tapered end has an axial hole through its length, with said hole being drilled of a smaller diameter at said chuck''s tapered end and a substantially larger diameter hole at said chuck''s opposite end and with both holes meeting intermediate the axial ends of said chuck and with said flexible sleeve being complementary in diameter to the larger hole being inserted and fixed therein, and With said winding member shaft being fully inserted and fixed in said small diametered hole at the tapered end of the chuck and with said small hole having a space between the top of said winding member shaft and the inner terminal end of said small hole with said space being deep enough and being complementary in diameter to provide a pivotable, rotatably engaging socket for the terminal end of the pre-angled shaft.
Claim 8
Dependent Claim
137 words
An angle drive tool as in claim 6 in which a winding member which has a dual diametered shaft with the relatively larger of the diameters constituting a shoulder on said shaft with said shaft''s terminal end having a smaller diameter than said shoulder and with said shaft''s terminal end being complementary in diameter to the smaller axial hole in the tapered end of said chuck and being fixed in said smaller hole with said larger diametered shoulder pressed against the truncated end of the chuck and having said winding member shaft inserted fully and with said shaft insertion being less than the full axial length of the smaller hole in said chuck with the remaining portion of said hole being provided as a receiving socket for encasement of the terminal end of the pre-angled guide shaft.
Claim 9
Dependent Claim
102 words
An angle drive tool as in claim 1 in which said guide shaft being cylindrical, has opposite end portions respectively disposed at an obtuse angle positioned intermediately between the ends of said shaft, one end portion of said pre-angled guide being mounted for pivoting in an axially extending socket on one end of a rotatable flexible drive sleeve unit to permit the winding member which is rotatable on the opposite end portion of said pre-angled guide shaft automatically to pivot on said pre-angled guide shaft and align said winding member axially of the socket of the band-tightening coil of the matrix band.
Claim 10
Dependent Claim
41 words
An angle drive tool as in claim 8 in which a pre-angled guide shaft having its both ends chamfered so as to ride smoothly and without destructive frictional contact within the encasement endings they are disposed into for pivoting and rotation.
Claim 11
Dependent Claim
129 words
An angle drive tool as in claim 1 in which a small collar is affixed to the terminal end of said flexible drive sleeve with said small collar being of such diameter and length so as to telescope over and encase the terminal end of the flexible sleeve wires with sufficient length so that an application of solder thereto will effect retention of said collar on said flexible sleeve, yet said collar being axially short enough so as to permit the entry of said pre-angled guide shaft through said short collar and then through said flexible sleeve and seating against the top of said winding member shaft in said chuck encasement hole and with said long socketed collar adaptable to be telescoped over and affixed to said shorter collar.
Claim 12
Dependent Claim
121 words
An angle drive tool as in claim 10 in which an assembled, pre-angled guide shaft with an overall length substantially equal in length to the overall inner core between the ends of said flexible sleeve unit with flexible drive sleeve wire endings that are somewhat shorter than the overall flexible sleeve unit which includes a long socketed collar and a socketed chuck respectively assembled to each end of said unit and with said cylindrical pre-angled guide shaft having an overall diameter equal to the diameter of the small encasement hole of said chuck with sufficient difference in the relative dimensions of the guide shaft and said chuck hole so as to permit smooth rotational engagement when chuck rotates on said shaft.
Claim 13
Dependent Claim
128 words
An angle drive tool as in claim 11 in which a small collar having been soldered over the free end of the coreless flexible sleeve opposite the end to which the chuck is soldered is of such length so as to permit the passage, for assembly, of said pre-angled portion of the guide shaft which is assembled into said socket encasement hole of said chuck which is soldered onto said flexible sleeve whereupon the chuck is rotatable on said guide shaft and with said opposIte end of said shaft protruding from the opposite end of said flexible sleeve, which is comprised of wound wires forming a coreless sleeve, the ends of said sleeve being severed from a sleeve longer than required, thereby resulting in severed, exposed wire endings.
Claim 14
Dependent Claim
172 words
An angle drive tool as in claim 11 in which a long cylindrical socketed collar with said socket serving as an encasement for one end of said guide shaft to pivot in and be rotated thereon, with said long collar embodying dual socketed bores which terminate short of the opposite axial end of said collar, said bores being of a shorter and deeper length with the outer bore of a diameter and depth compatible with said smaller collar and with said deep bore being equal in diameter and depth so as to rotatably engage said guide shaft''s terminal end which projects from said small collar affixed to the flexible drive sleeve with the depth of such sockets being sufficient to enable said long collar to telescope over said guide shaft and said smaller collar and be affixed to said smaller and shorter collar and with a flat provided on an outer portion of said collar for use in replaceable engagement of said long collar with a set screw in said driving member.
Claim 15
Dependent Claim
119 words
An angle drive tool as in claim 13 in which said long collar with its deep axial bore is telescoped over the guide shaft that protrudes from the flexible sleeve, whereafter said long socketed collar is telescoped over the shorter collar and soldered thereto, thereby sealing said pre-angled guide shaft suspended and encased within the flexible sleeve assembly unit with the socketed chuck on one end and said long socketed collar on the other end of said flexible sleeve unit, wherein said shaft terminates beyond said flexible drive sleeve wires and ending deep in the socket of the rotatable chuck, thereby avoiding destructive interference between the projecting terminal end of the guide shaft and said flexible sleeve wire endings.
Claim 16
Dependent Claim
84 words
An angle drive tool as in claim 13 in which said long socketed collar of said assembled flexible sleeve unit is replaceably mounted in the socketed end of said driving member with both being complementary in dimensions for being so fixed together with a set screw that traverses the socket of the driving member and bearing against the flat on said cylindrical collar to fixture said long collar in said replaceable engagement until said set screw is loosened for replacement of said flexible sleeve.
Claim 17
Dependent Claim
116 words
An angle drive tool as in claim 13 in which when said rotatable palm grip is in an operator''s palm and said driving member is rotated with the fingers, said flexible sleeve unit rotates and is axially pivotable on its prebent guide shaft which is pivotable in said shaft socket of the long collar, which, in turn, permits the rotating winding member at the terminal end of the flexible sleeve assembly to equally pivot while rotating and when said winding member is inserted and is rotating said matrix coil, said winding member thereby will pivot and maintain automatic self-alignment of said winding member to axis of the central socket of the matrix coil it is winding.
Claim 18
Dependent Claim
62 words
An angle drive tool as in claim 16 in which with said freely, non-fixed rotatable palm grip in the operator''s palm, no amount of twisting or rotation of operator''s wrist will be transmitted beyond said freely rotatable palm grip and neither the winding member of the pre-angled tool or the matrix coil will be twisted during the winding action of said tool.
Claim 19
Dependent Claim
77 words
An angle drive tool as in claim 1 in which said driving member embodies a releasable clutch means between said elongated collar and the socket in said elongated driving member which receives said clutch comprised of an automatically releasable ball/socket hole barrel clutch means operable to permit repeated engagement and disengagement between said driving member and the barrel clutch of said tool after a winding coil on the matrix band has been tightened to a predetermined extent.
Claim 20
Dependent Claim
115 words
An anGle drive tool as in claim 18 in which said releasable clutch means comprises a bore extending transversely through said elongated barrel clutch between the opposite ends thereof with one ball from a pair of similar balls, mounted in each opposite end of said bore and a compression spring extending between said balls within said channel, and engaging said balls respectively at its opposite ends, and the walls of the recess in said driving member which receive said elongated barrel clutch having holes formed therein of a smaller diameter than that of the balls for purposes of providing sockets within which said balls are received when said clutch means are disposed in driving relationship.
Claim 21
Dependent Claim
143 words
An angle drive tool as in claim 19 in which said holes are small enough for said balls to enter sufficiently to develop needed sidewall engagement of said socket with said balls for rotation of said tool while said balls being large enough, diametrically, to be disengageable by said sockets depressing said balls downwardly and out from said sockets when said socket edges bear against said balls when said barrel clutch resists further rotation due to the tightness of the matrix coil and therefore said ball depression constitutes a clutch disengagement, caused by continued rotation of said driving member beyond said predetermined tightness of said coil, which repeatedly engages and disengages said clutch whenever said predetermined torque limit of said ball and socket is exceeded by the amount of torque being applied by excessive rotation of the driving member by said operator''s fingers.
Claim 22
Dependent Claim
146 words
An angle drive tool as in claim 20 having a ball/socket clutch in which, when the angle tool is winding said coil beyond the predetermined extent established by the relationship of the ball diameter, to that of the socket diameter, said barrel driving said balls will resist further rotation of said driving socket member and thereafter said balls will be depressed by said sidewalls of said sockets and said barrel clutch will thereby be disengaged and cease rotation while said modified driving member continues to rotate, causing a audible click to resonate from the repeated ball and socket engagements, which serves as a sonic signal to the operator that the tool has reached maximum torque transmission to said matrix coil, whereby operator ceases to rotate said tool and by reverse winding of said driving member removes said winding member and tool from said tightened matrix coil.
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) | 1977-12-09 | 1978-06-10 | 1978-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-09 | 1982-06-10 | 1982-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-09 | 1986-06-10 | 1986-12-10 | $7700.00 | Window Closed / Lapsed |