US3611818A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Translation control mechanism
Assignee: ACU-RITE Inc
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Filing: 1969-10-06
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Granted: 1971-10-12
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Expires: 1989-10-06
Abstract
Abstract A control for transmitting motion comprises a shaft having a surface finish with a predominantly helical lay, the control being slidably and rotatably engaged with a following block at a uniform deformable surface formed thereon. A control device is provided for controlling the engagement by controlling the amount of pressure exerted by the uniform deformable surface upon the spirally grooved shaft.
Inventors
- 👤 Richard H Burns
- 👤 Helmut Welker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 00:30
CPC Classifications
G; G05; G05G; G05G23/00; F; F16; F16H; F16H25/00; F16H25/18; F16H25/20; F16H25/2003; F16H25/2009; G05G1/00; G05G2700/00; G05G2700/02; Y; Y10; Y10S; Y10S74/00; Y10S74/10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19642; Y10T74/19698; Y10T74/19702; Y10T74/19735; Y10T74/1974; Y10T74/19949; Y10T74/19953
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
103 words
Apparatus for interchanging linear and rotary motions, comprising: a. a nondeformable member disposed about an axis and having a surface at least partially substantially cylindrical about said axis, said surface having diminutive grooves formed therein, said grooves varying in size but being uniformly aligned in a common spiral pitch, all of said grooves being less than 0.005 inch in depth; and b. deformable means defining a smooth surface having a shape deformably corresponding to said cylindrical surface of said nondeformable member, said surfaces being adapted to mutual contact and one of said surfaces being disposed for rotation while in contact with the other.
Claim 2
Dependent Claim
103 words
Apparatus for interchanging linear and rotary motions, comprising: a. a nondeformable member disposed about an axis and having a surface at least partially substantially cylindrical about said axis, said surface having diminutive grooves formed therein, said grooves varying in size but being uniformly aligned in a common spiral pitch, all of said grooves being less than 0.005 inch in depth; and b. deformable means defining a smooth surface having a shape deformably corresponding to said cylindrical surface of said nondeformable member, said surfaces being adapted to mutual contact and one of said surfaces being disposed for rotation while in contact with the other.
Claim 3
Dependent Claim
13 words
The apparatus of claim 1 further comprising means for urging said surface together.
Claim 4
Dependent Claim
18 words
The apparatus of claim 2 wherein said urging means comprises a spring-biased member for urging said surfaces together.
Claim 5
Dependent Claim
15 words
The apparatus of claim 3 wherein said deformable means comprises a plug of resilient material.
Claim 6
Dependent Claim
34 words
The apparatus of claim 3 wherein said deformable means comprises a cylinder of deformable material disposed as a sleeve about said nondeformable member and biased against said nondeformable member by an open-ended, multisided spring.
Claim 7
Dependent Claim
21 words
The apparatus of claim 3 wherein said deformable means comprises a plurality of pads in biased contact with said nondeformable member.
Claim 8
Dependent Claim
76 words
Mechanism for conversion between linear and rotational motions, comprising: a. a deformable member defining a smooth surface; b. a nondeformable member having about an axis, a substantially cylindrical surface having a finish comprising diminutive helical abrasions varying in size but less than 0.005 inch in depth, said cylindrical surface being adapted for contact with said smooth surface of said deformable member; and c. means for rotating one of said deformable and nondeformable members about said axis.
Claim 9
Dependent Claim
76 words
Mechanism for conversion between linear and rotational motions, comprising: a. a deformable member defining a smooth surface; b. a nondeformable member having about an axis, a substantially cylindrical surface having a finish comprising diminutive helical abrasions varying in size but less than 0.005 inch in depth, said cylindrical surface being adapted for contact with said smooth surface of said deformable member; and c. means for rotating one of said deformable and nondeformable members about said axis.
Claim 10
Dependent Claim
83 words
An assembly for translating rotary motion into linear motion, comprising: a. a cylindrical shaft having grooves of varying size but less than 0.005 inch in depth formed in a surface of said shaft said grooves being aligned in a common spiral pitch; and b. deformable means having substantially uniform surface rotatably engaging the grooved surface whereby when one of said shaft and said deformable means is rotated relative to the other, said one linearly traverse in an axial direction relative to the other.
Claim 11
Dependent Claim
83 words
An assembly for translating rotary motion into linear motion, comprising: a. a cylindrical shaft having grooves of varying size but less than 0.005 inch in depth formed in a surface of said shaft said grooves being aligned in a common spiral pitch; and b. deformable means having substantially uniform surface rotatably engaging the grooved surface whereby when one of said shaft and said deformable means is rotated relative to the other, said one linearly traverse in an axial direction relative to the other.
Claim 12
Dependent Claim
15 words
The assembly of claim 8 wherein said uniform surface is biased against said grooved surface.
Claim 13
Dependent Claim
27 words
The assembly of claim 9 wherein said uniform surface comprises a plug and said bias is accomplished by a spring urging said plug against said cylindrical shaft.
Claim 14
Dependent Claim
20 words
The assembly of claim 8 wherein said uniform surface and said grooved cylindrical surface are urged together by spring means.
Claim 15
Dependent Claim
19 words
The assembly of claim 11 wherein said uniform surface is formed on a collar substantially encircling said cylindrical surface.
Claim 16
Dependent Claim
19 words
The assembly of claim 12 further comprising releasable clamping means for engaging and disengaging said grooved and uniform surfaces.
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) | 1974-10-11 | 1975-04-12 | 1975-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-11 | 1979-04-12 | 1979-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-11 | 1983-04-12 | 1983-10-12 | $7700.00 | Window Closed / Lapsed |