Patent US3574366A successfully refreshed from Google Patents.
US3574366A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spline liner
Assignee: Griffon Corp
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Filing: 1969-07-23
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Granted: 1971-04-13
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Expires: 1989-07-23
Abstract
Abstract A splined connection between inner and outer members including liners between the splines on the two members. The liners are made of a material capable of withstanding torque loads which fluctuate at high frequencies, whereby the splined members themselves may be made of die cast aluminum alloys for economy. The splined portion of the inner member is longitudinally tapered while the splined portion of the outer member is untapered. The spline liners are internally tapered to match the inner member and are externally untapered to match the outer member so that the outer member may slide longitudinally on the spline liners. This permits die casting the splines on the inner member with sufficient draft for easy removal. The use of liners between splined members in this manner is particularly useful in a variable speed transmission wherein the outer member comprises the movable face of a V-belt pulley which is constantly shifted back and forth longitudinally to vary the pitch diameter of the pulley.
Inventors
- 👤 Lewis D Thostenson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:46
CPC Classifications
F; F16; F16D; F16D1/00; F16D1/06; F16D1/08; F16D1/0876; F16D1/0882; F16H; F16H55/00; F16H55/32; F16H55/52; F16H55/56; F16H55/563; Y; Y10; Y10T; Y10T403/00; Y10T403/70; Y10T403/7026; Y10T403/7033
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
99 words
A spline liner comprising a four-sided elongated member having longitudinally extending, lateral surfaces which are parallel to provide said member with a longitudinally constant width, said member having longitudinally extending, radially spaced surfAces which converge from one end of said member to the other to provide it with a longitudinally varying thickness and which interconnect and are perpendicular to said lateral surfaces, one of said radially spaced surfaces being provided therein with a longitudinally extending spline groove having a longitudinally constant depth and having a width converging from said other end of said member to said one end thereof.
Claim 2
Dependent Claim
99 words
A spline liner comprising a four-sided elongated member having longitudinally extending, lateral surfaces which are parallel to provide said member with a longitudinally constant width, said member having longitudinally extending, radially spaced surfAces which converge from one end of said member to the other to provide it with a longitudinally varying thickness and which interconnect and are perpendicular to said lateral surfaces, one of said radially spaced surfaces being provided therein with a longitudinally extending spline groove having a longitudinally constant depth and having a width converging from said other end of said member to said one end thereof.
Claim 3
Dependent Claim
28 words
A spline liner as defined in claim 1 wherein said member has end faces perpendicular to said lateral surfaces and to the other of said radially spaced surfaces.
Claim 4
Dependent Claim
72 words
In combination: a. inner and outer members having generally complementary splined portions; b. the splined portion of said inner member being longitudinally tapered; c. the splined portion of said outer member having a longitudinally constant cross section; and d. spline liner means having concentric inner and outer portions respectively complementary to and engaging said splined portions of said inner and outer members, said spline liner means separating said inner and outer members.
Claim 5
Dependent Claim
72 words
In combination: a. inner and outer members having generally complementary splined portions; b. the splined portion of said inner member being longitudinally tapered; c. the splined portion of said outer member having a longitudinally constant cross section; and d. spline liner means having concentric inner and outer portions respectively complementary to and engaging said splined portions of said inner and outer members, said spline liner means separating said inner and outer members.
Claim 6
Dependent Claim
19 words
The combination set forth in claim 3 wherein said outer member is longitudinally slidable on said spline liner means.
Claim 7
Dependent Claim
20 words
The combination of claim 4 including two longitudinally spaced stop means for limiting longitudinal sliding movement of said outer member.
Claim 8
Dependent Claim
44 words
The combination set forth in claim 5 wherein one of said stop means comprises another outer member axially aligned with the first outer member mentioned and having a longitudinally tapered splined portion complementary to and engaging said tapered splined portion of said inner member.
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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) | 1974-04-12 | 1974-10-12 | 1975-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-12 | 1978-10-12 | 1979-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-12 | 1982-10-12 | 1983-04-13 | $7700.00 | Window Closed / Lapsed |