US3585867A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Actuators
Assignee: English Electric Co Ltd
•
Filing: 1969-06-02
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Granted: 1971-06-22
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Expires: 1989-06-02
Abstract
Abstract This invention relates to an actuator with a reversible output member, such as a nut, which is in driving engagement with an output shaft. The output member has, adjacent one end, driving engagement means, such as dogs, which engage with corresponding parts at the bottom of a recess at the end of the shaft, the main part of the output member either lying within, or projecting from, the shaft. The output member is secured in position by an externally threaded retainer which screws into the recess. The recess is provided by a tubular member which forms a permanent extension of the shaft.
Inventors
- 👤 Edward Michael Grimshaw
- 👤 Ivan Yehudi Hirsh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:11
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/02; F16K31/04; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18568; Y10T74/18576; Y10T74/18696
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
95 words
An actuator including a drive motor; an output shaft driven by said motor and having a recess at its driving end and driving engagement means at the bottom of the recess; an output member having external driving engagement means formed at or near one end of the member and arranged to engage with the driving engagement means of the output shaft with the member pointing in either of two directions; and clutch means operable to disconnect the drive between the motor and the output shaft and to connect the output shaft to manual operation means.
Claim 2
Dependent Claim
95 words
An actuator including a drive motor; an output shaft driven by said motor and having a recess at its driving end and driving engagement means at the bottom of the recess; an output member having external driving engagement means formed at or near one end of the member and arranged to engage with the driving engagement means of the output shaft with the member pointing in either of two directions; and clutch means operable to disconnect the drive between the motor and the output shaft and to connect the output shaft to manual operation means.
Claim 3
Dependent Claim
40 words
An actuator as claimed in claim 1, in which the output member is secured in driving engagement with the output shaft by an externally threaded retainer which is screwed into the recess and presses the driving engagement means into engagement.
Claim 4
Dependent Claim
21 words
An actuator as claimed in claim 1, in which the recess is formed by a hollow extension of the output shaft.
Claim 5
Dependent Claim
20 words
An actuator as claimed in claim 3, in which said extension comprises a separate member attached to the output shaft.
Claim 6
Dependent Claim
14 words
An actuator as claimed in claim 1, in which the output shaft is hollow.
Claim 7
Dependent Claim
25 words
An actuator as claimed in claim 5, in which said output member is arranged to lie alternatively mainly inside or mainly outside the output shaft.
Claim 8
Dependent Claim
25 words
An actuator as claimed in claim 1, in which the output member is a nut arranged to drive a threaded spindle for controlling a valve.
Claim 9
Dependent Claim
27 words
An actuator as claimed in claim 1, in which the output member is a sleeve having means to engage with a spindle which is to be rotated.
Claim 10
Dependent Claim
16 words
An actuator as claimed in claim 1, in which said driving engagement means comprise interengaging teeth.
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) | 1974-06-21 | 1974-12-21 | 1975-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-21 | 1978-12-21 | 1979-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-21 | 1982-12-21 | 1983-06-22 | $7700.00 | Window Closed / Lapsed |