US3884406A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fractured bearing race
Assignee: Timken US LLC
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Filing: 1974-02-14
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Granted: 1975-05-20
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Expires: 1994-02-14
Abstract
Abstract This is a new bearing race formed by fracturing the bearing by applying a concentrated force at a plurality of longitudinally spaced apart points on the bearing race. Preferably, three pressure applying members are used in the system to make the fractured race. One pressure applying member is located adjacent each longitudinal end of the bearing race to be fractured. The third pressure applying member is circumferentially spaced from the other two pressure applying members.
Inventors
- 👤 Willard L Bowen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:43
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/30; F16C33/58; F16C33/64; B; B23; B23D; B23D31/00; B23D31/002; B23D31/003; F16C33/60; Y; Y10; Y10T; Y10T225/00; Y10T225/30; Y10T225/329; Y10T225/371
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
72 words
A system for fracturing a unitary race member comprising: means for holding and supporting the race member; and a plurality of individually adjustable pressure applying means adapted to apply forces at a plurality of spaced apart longitudinal points on the outer surface of the race member whereby the outer surface of the race member may be initially stressed at at least one longitudinal point and thereafter fractured along a predetermined longitudinal direction.
Claim 2
Independent Claim
72 words
A system for fracturing a unitary race member comprising: means for holding and supporting the race member; and a plurality of individually adjustable pressure applying means adapted to apply forces at a plurality of spaced apart longitudinal points on the outer surface of the race member whereby the outer surface of the race member may be initially stressed at at least one longitudinal point and thereafter fractured along a predetermined longitudinal direction.
Claim 3
Dependent Claim
42 words
The system of claim 1 wherein the pressure applying means comprises: a movable support; only three pressure applying members extending from said support; and means for moving said movable support whereby the pressure applying members may be forced against the race member.
Claim 4
Dependent Claim
13 words
The system of claim 2 wherein the pressure applying members are pressure screws.
Claim 5
Dependent Claim
60 words
The system of claim 3 wherein the screws are positioned in the movable support to apply a force on the outer surface of the race adjacent each end of the bearing race at a desired circumferential location on the race and also to apply a force on the outer surface of said race circumferentially spaced from said desired circumferential location.
Claim 6
Dependent Claim
38 words
A system in accordance with claim 4 wherein the third screw applies pressure on the outer surface of said race at a point circumferentially spaced from 1* to 10* from the force points of the other two screws.
Claim 7
Dependent Claim
50 words
The system of claim 2 in which the pressure applying means each comprise: an adjustable set screw; and a substantially semi-spherical member pivotally connected to the lower end of the adjustable set screw with the flat side of the semi-spherical member positioned to contact the outer surface of the race.
Claim 8
Dependent Claim
27 words
The system of claim 6 wherein the substantially semispherical member is pivotally connected to the lower end of the set screw by means of a rubber compound.
Claim 9
Dependent Claim
53 words
The system of claim 2 wherein the means for moving the movable support comprises: a lever pivotally mounted at one end by a ball pivot, the movable support being mounted at approximately the longitudinal center of said lever; and means for applying a large force adjacent the other end of the lever member.
Claim 10
Independent Claim
132 words
A system for fracturing a unitary race member into two substantially equal halves comprising: a pair of pivotally mounted and spaced apart lever arms; supporting means for holding and supporting between the lever arms the race member to be fractured; three individually adjustable pressure applying members extending from each lever arm with two of said members being located so as to apply a force against each longitudinal end of the race member and the third pressure applying member being located so as to apply a force circumferentially spaced from The other two members from 1* to 10*; and means for applying a large force adjacent the end of each lever opposite from the pivotally mounted end whereby the race member may be fractured along predetermined longitudinal directions into two substantially equal halves.
Claim 11
Independent Claim
132 words
A system for fracturing a unitary race member into two substantially equal halves comprising: a pair of pivotally mounted and spaced apart lever arms; supporting means for holding and supporting between the lever arms the race member to be fractured; three individually adjustable pressure applying members extending from each lever arm with two of said members being located so as to apply a force against each longitudinal end of the race member and the third pressure applying member being located so as to apply a force circumferentially spaced from The other two members from 1* to 10*; and means for applying a large force adjacent the end of each lever opposite from the pivotally mounted end whereby the race member may be fractured along predetermined longitudinal directions into two substantially equal halves.
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) | 1978-05-19 | 1978-11-18 | 1979-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-19 | 1982-11-18 | 1983-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-19 | 1986-11-18 | 1987-05-20 | $7700.00 | Window Closed / Lapsed |