US3825992A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making an eccentric flexural pivot
Assignee: Bendix Corp
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Filing: 1972-09-08
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Granted: 1974-07-30
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Expires: 1992-09-08
Abstract
Abstract The method of manufacturing a flexural pivot device comprising the sequential steps of forming a cylindrical housing, milling (such as by electrochemical or electrical discharge means) two diagonally-opposite arcuate annular spaces eccentric to the axis of the housing at each end of the housing thereby forming diametrically opposed and overlapping inwardly-projecting eccentric arcuate structure, forming a plurality of resilient members, assembling the resilient members within the housing and securing the resilient members thereto, and cutting a circumferential groove in the housing coincident with the overlapping arcuate structure so that limited relative rotation of one arcuate structure relative to the other may occur upon flexing of the resilient means.
Inventors
- 👤 H Troeger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:08
CPC Classifications
F; F16; F16C; F16C11/00; F16C11/04; F16C11/12; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49789; Y10T29/49796; Y10T29/49826; Y10T29/4984; Y10T29/49844; Y10T403/00; Y10T403/54
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
73 words
The method of manufacturing an eccentric flexural pivot comprised of: providing a housing having resilient receiving means therein; removing material from the housing to form axially overlapping diagonally-opposite arcuate annular spaces eccentric to the axis of the housing; forming resilient means to be received within the resilient receiving means of said housing; assembling said resilient means within said resilient receiving means; and parting said housing circumferentially to intersect said eccentric arcuate annular spaces.
Claim 2
Independent Claim
73 words
The method of manufacturing an eccentric flexural pivot comprised of: providing a housing having resilient receiving means therein; removing material from the housing to form axially overlapping diagonally-opposite arcuate annular spaces eccentric to the axis of the housing; forming resilient means to be received within the resilient receiving means of said housing; assembling said resilient means within said resilient receiving means; and parting said housing circumferentially to intersect said eccentric arcuate annular spaces.
Claim 3
Dependent Claim
43 words
The method according to claim 1 wherein the arcuate annular spaces are formed in said housing by inserting a cylindrical electrode into said housing eccentric to the axis of the housing at diametrically opposite ends of said housing until the arcuate spaces overlap.
Claim 4
Dependent Claim
25 words
The method according to claim 1 wherein the housing is parted by cutting a circumferential groove therein so that said groove intersects said annular spaces.
Claim 5
Dependent Claim
24 words
The method of manufacturing a flexural pivot as claimed in claim 1 further including the step of unitizing said resilient means and said housing.
Claim 6
Independent Claim
79 words
A method of forming a universal flexural assembly having resiliency apertures disposed coincident with perpendicular axes about which universal motion is available, and freedom of motion spaces respectively disposed about and concentric with said apertures comprising the steps of: providing an integral body with said apertures and freedom of motion chambers therein; providing resilient members to said resiliency apertures; and removing excess material from said body to transform said freedom of motion chambers into said freedom of motion spaces.
Claim 7
Independent Claim
79 words
A method of forming a universal flexural assembly having resiliency apertures disposed coincident with perpendicular axes about which universal motion is available, and freedom of motion spaces respectively disposed about and concentric with said apertures comprising the steps of: providing an integral body with said apertures and freedom of motion chambers therein; providing resilient members to said resiliency apertures; and removing excess material from said body to transform said freedom of motion chambers into said freedom of motion spaces.
Claim 8
Dependent Claim
15 words
The method as claimed in claim 5 wherein the integral body is provided by casting.
Claim 9
Dependent Claim
17 words
The method as claimed in claim 5 wherein said freedom of motion chambers are formed by electrOetching.
Claim 10
Dependent Claim
15 words
The method as claimed in claim 5 wherein said resiliency apertures are formed by drilling.
Claim 11
Dependent Claim
15 words
The method as claimed in claim 5 wherein the excess material is removed by grinding.
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) | 1977-07-29 | 1978-01-28 | 1978-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-29 | 1982-01-28 | 1982-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-29 | 1986-01-28 | 1986-07-30 | $7700.00 | Window Closed / Lapsed |