Patent US3777097A successfully refreshed from Google Patents.
US3777097A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Induction heating device for ring gears
Assignee: Park Ohio Holdings Corp
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Filing: 1973-03-08
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Granted: 1973-12-04
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Expires: 1993-03-08
Abstract
Abstract An induction heating device for heating metal ring gears having an outer cylindrical periphery including the teeth and an inner cylindrical surface which is generally concentric with the periphery and with a central axis. The ring gear is rotated about the axis in close proximity with an encircling inductor whereby the teeth of the gear are inductively heated for subsequent quench hardening. In this device there is an improvement including a rotatable support member having at least three outwardly movable, pivoted arms which can be adjusted into a set position and means for allowing limited movement of the arms with respect to the set position.
Inventors
- 👤 R Budzinski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:50
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/02; H05B6/36; H05B6/40; H05B6/405; C; C21; C21D; C21D1/00; C21D1/34; C21D1/42; Y; Y02; Y02P; Y02P10/00; Y02P10/25; Y10; Y10T; Y10T279/00; Y10T279/10; Y10T279/1074; Y10T279/1083; Y10T279/1095; Y10T279/28
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
161 words
In an induction heating device for heating a metal ring having an outer cylindrical periphery and an inner cylindrical surface, generally concentric with said periphery and having a central axis, said device including means for rotating said metal ring about said axis and an inductor adjacent said periphery and inductively coupled with said metal ring for heating said ring as it is rotating, the improvement comprising: a support member, means for mounting said support member for rotation about said axis, at least three concurrently movable locators supported on said support member and each movable in a direction generally radially of said axis for engagement with said cylindrical surface, means for causing said locators to move in unison to define an adjustable locator circle generally concentric with said axis, means for positioning said concurrently movable locators in a selected position for creating a selected locator circle, and means for allowing limited movement of said locators while they are in said selected position.
Claim 2
Dependent Claim
161 words
In an induction heating device for heating a metal ring having an outer cylindrical periphery and an inner cylindrical surface, generally concentric with said periphery and having a central axis, said device including means for rotating said metal ring about said axis and an inductor adjacent said periphery and inductively coupled with said metal ring for heating said ring as it is rotating, the improvement comprising: a support member, means for mounting said support member for rotation about said axis, at least three concurrently movable locators supported on said support member and each movable in a direction generally radially of said axis for engagement with said cylindrical surface, means for causing said locators to move in unison to define an adjustable locator circle generally concentric with said axis, means for positioning said concurrently movable locators in a selected position for creating a selected locator circle, and means for allowing limited movement of said locators while they are in said selected position.
Claim 3
Dependent Claim
41 words
The improvement as defined in claim 1 wherein said movement allowing means includes a stop means associated with at least one of said locators for limiting movement in one direction and a spring for biasing said locator toward said stop means.
Claim 4
Dependent Claim
49 words
The improvement as defined in claim 2 wherein said locators each include an arm having first and second ends and a workpiece engaging element on said first end of said arm, and means at said second end of said arm for pivotally mounting said arm onto said support member.
Claim 5
Dependent Claim
46 words
The improvement as defined in claim 1 wherein said locators each include an arm having first and second ends and a workpiece engaging element on said first end, and means at said second end of said arm for pivotally mounting said arm onto said support member.
Claim 6
Dependent Claim
21 words
The improvement as defined in claim 4 including drive means interconnecting said arms for causing said arms to move in unison.
Claim 7
Dependent Claim
47 words
The impRovement as defined in claim 5 wherein said drive means includes a rotatable member fixed to each of said arms at said second ends thereof and an endless drive element interconnecting said members whereby rotation of one of said members drives the other members in unison.
Claim 8
Dependent Claim
49 words
The improvement as defined in claim 4 wherein said positioning means includes a first member for limiting movement of one of said arms in a first direction, a second member carried by said support member, and means for adjustably locking said first member with respect to said second member.
Claim 9
Dependent Claim
33 words
The improvement as defined in claim 7 wherein said limited movement allowing means is a stop carried by said first element and a spring means for biasing said one arm toward said stop.
Claim 10
Dependent Claim
143 words
In an induction heating device for heating a metal ring having an outer cylindrical periphery and an inner cylindrical surface, generally concentric with said periphery and having a central axis, said device including means for rotating said metal ring about said axis and an inductor adjacent said periphery and inductively coupled with said metal ring for heating said ring as it is rotating, the improvement comprising: a support member, means for mounting said support member for rotation about said axis, at least three arms pivotally mounted on said support member and having workpiece engaging elements, means for pivoting said arms in unison to define a circle concentric with said axis, means for positioning said arms in a selected position for defining a selected circle generally corresponding to said cylindrical surface, and means for allowing limited movement of said arms in said selected position.
Claim 11
Dependent Claim
143 words
In an induction heating device for heating a metal ring having an outer cylindrical periphery and an inner cylindrical surface, generally concentric with said periphery and having a central axis, said device including means for rotating said metal ring about said axis and an inductor adjacent said periphery and inductively coupled with said metal ring for heating said ring as it is rotating, the improvement comprising: a support member, means for mounting said support member for rotation about said axis, at least three arms pivotally mounted on said support member and having workpiece engaging elements, means for pivoting said arms in unison to define a circle concentric with said axis, means for positioning said arms in a selected position for defining a selected circle generally corresponding to said cylindrical surface, and means for allowing limited movement of said arms in said selected position.
Claim 12
Dependent Claim
49 words
The improvement as defined in claim 9 wherein said positioning means includes a first member for limiting movement of one of said arms in a first direction, a second member carried by said support member, and means for adjustably locking said first member with respect to said second member.
Claim 13
Dependent Claim
33 words
The improvement as defined in claim 10 wherein said limited movement allowing means is a stop carried by said first element and a spring means for biasing said one arm toward said stop.
Claim 14
Dependent Claim
141 words
In an induction heating device for heating a metal ring having an outer cylindrical periphery and an inner cylindrical surface, generally concentric with said periphery and having a central axis, said device including means for rotating said metal ring about said axis and an inductor adjacent said periphery and inductively coupled with said metal ring for heating said ring as it is rotating, the improvement comprising: a support member, means for mounting said support member for rotation about said axis,at least three workpiece engaging members carried by said support member, means for adjusting said members in a direction generally radially of said axis, means for positioning said members in a desired position defining a circle generally concentric with said axis, and means for allowing limited movement of at least one of said members in a direction generally radially of said axis.
Claim 15
Dependent Claim
141 words
In an induction heating device for heating a metal ring having an outer cylindrical periphery and an inner cylindrical surface, generally concentric with said periphery and having a central axis, said device including means for rotating said metal ring about said axis and an inductor adjacent said periphery and inductively coupled with said metal ring for heating said ring as it is rotating, the improvement comprising: a support member, means for mounting said support member for rotation about said axis,at least three workpiece engaging members carried by said support member, means for adjusting said members in a direction generally radially of said axis, means for positioning said members in a desired position defining a circle generally concentric with said axis, and means for allowing limited movement of at least one of said members in a direction generally radially of said axis.
Claim 16
Dependent Claim
31 words
The improvement as defined in claim 12 including a stop for limiting radially outward movement of one of said members and spring means for biasing said one member toward said stop.
Claim 17
Dependent Claim
19 words
The improvement as defined in claim 13 including means for adjusting said stop with respect to said support member.
Claim 18
Dependent Claim
131 words
In an induction heating device for heating a metal ring having an outer cylindrical periphery and an inner cylindrical surface, generally concentric with said periphery and having a central axis, said device including means for rotating said metal ring about said axis and an inductor adjacent said periphery and inductively coupled with said metal ring for heating said ring as it is rotating, the improvement comprising: a support member, means for mounting said support member for rotation about said axis, at least three ring engaging locators supported on said support member, means for securing said locators in a given location to define a locatoR circle generally concentric with said axis and matching said cylindrical surface, and spring means for biasing said locators against said cylindrical surface during heating by said inductor.
Claim 19
Dependent Claim
131 words
In an induction heating device for heating a metal ring having an outer cylindrical periphery and an inner cylindrical surface, generally concentric with said periphery and having a central axis, said device including means for rotating said metal ring about said axis and an inductor adjacent said periphery and inductively coupled with said metal ring for heating said ring as it is rotating, the improvement comprising: a support member, means for mounting said support member for rotation about said axis, at least three ring engaging locators supported on said support member, means for securing said locators in a given location to define a locatoR circle generally concentric with said axis and matching said cylindrical surface, and spring means for biasing said locators against said cylindrical surface during heating by said inductor.
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) | 1976-12-03 | 1977-06-04 | 1977-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-03 | 1981-06-04 | 1981-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-03 | 1985-06-04 | 1985-12-04 | $7700.00 | Window Closed / Lapsed |