US3584518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Push-pull,cable-type actuator for use at high temperatures
Assignee: Individual
•
Filing: 1969-02-10
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Granted: 1971-06-15
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Expires: 1989-02-10
Abstract
Abstract A push-pull, cable-type actuator for use at high temperatures comprises a flexible metal sheath and a flexible metal core mounted for sliding longitudinal movement in the sheath. The sliding surfaces of both sheath and core are comprised of a precipitation hardening steel fabricated in a soft condition and hardened by swaging and heat treating to a condition in which the meeting, rubbing surfaces will not spall during use of the actuator at high temperatures.
Inventors
- 👤 John B Hurlow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:23
CPC Classifications
F; F16; F16C; F16C1/00; F16C1/26; F16C1/10; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20396; Y10T74/20402; Y10T74/20456
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
66 words
A push-pull, cable-type actuator for use at high temperatures, comprising: a. a flexible metal sheath and b. a flexible metal core mounted for relative sliding longitudinal movement within the sheath, c. the sliding surfaces of both sheath and core being comprised of a precipitation hardening steel hardened to a predetermined degree of hardness by swaging and heat treating at a temperature of at least 600* F.
Claim 2
Dependent Claim
66 words
A push-pull, cable-type actuator for use at high temperatures, comprising: a. a flexible metal sheath and b. a flexible metal core mounted for relative sliding longitudinal movement within the sheath, c. the sliding surfaces of both sheath and core being comprised of a precipitation hardening steel hardened to a predetermined degree of hardness by swaging and heat treating at a temperature of at least 600* F.
Claim 3
Dependent Claim
14 words
The actuator of claim 1 wherein the precipitation hardening steel comprises a maraging steel.
Claim 4
Dependent Claim
14 words
The actuator of claim 1 wherein the precipitation hardening steel comprises an austenitic steel.
Claim 5
Dependent Claim
26 words
The actuator of claim 1 wherein the steel is hardened by swaging and heat treating at a temperature of between about 900* F. and 1500* F.
Claim 6
Dependent Claim
57 words
The actuator of claim 1 wherein the flexible metal sheath comprises an inner contact member comprising spirally wound flat wire, a vapor barrier of heat-resistant tape wound over the contact member, a layer of round wires spirally wound over the vapor barrier, and a metal binder wire helically wound about the round wire layer and swaged thereto.
Claim 7
Dependent Claim
24 words
The actuator of claim 1 wherein the flexible metal core comprises a central wire wrapped with an armoring, precipitation hardened, steel wire swaged thereto.
Claim 8
Dependent Claim
82 words
A push-pull cable-type actuator for use at high temperatures, comprising: a. a flexible metal sheath, and b. a flexible metal core mounted for relative sliding longitudinal movement within the sheath, c. the sliding surfaces of both sheath and core being comprised of a precipitation hardening alloy steel comprising from 10-30 percent nickel, from 5-15 percent cobalt, from 1-10 percent molybdenum, and iron, hardened to a predetermined degree of hardness by swaging and heat treating at a temperature of at least 600* F.
Claim 9
Dependent Claim
82 words
A push-pull cable-type actuator for use at high temperatures, comprising: a. a flexible metal sheath, and b. a flexible metal core mounted for relative sliding longitudinal movement within the sheath, c. the sliding surfaces of both sheath and core being comprised of a precipitation hardening alloy steel comprising from 10-30 percent nickel, from 5-15 percent cobalt, from 1-10 percent molybdenum, and iron, hardened to a predetermined degree of hardness by swaging and heat treating at a temperature of at least 600* F.
Claim 10
Dependent Claim
110 words
A push-pull cable-type actuator for use at high temperatures, comprising: a. a flexible metal sheath, and b. a flexible metal core mounted for relative sliding longitudinal movement within the sheath, c. the sliding surfaces of both sheath and core being comprised of a precipitation hardening steel hardened to a predetermined degree of hardness by swaging and heat treating at a temperature of at least 600* F. d. at least one of said sliding surfaces comprising an alloy containing from 5-15 percent nickel, from 10-30 percent chromium, from 5-20 percent tungsten, from 1-10 percent iron, and cobalt, the alloy being fabricated in the soft condition and hardened by swaging and heating.
Claim 11
Dependent Claim
110 words
A push-pull cable-type actuator for use at high temperatures, comprising: a. a flexible metal sheath, and b. a flexible metal core mounted for relative sliding longitudinal movement within the sheath, c. the sliding surfaces of both sheath and core being comprised of a precipitation hardening steel hardened to a predetermined degree of hardness by swaging and heat treating at a temperature of at least 600* F. d. at least one of said sliding surfaces comprising an alloy containing from 5-15 percent nickel, from 10-30 percent chromium, from 5-20 percent tungsten, from 1-10 percent iron, and cobalt, the alloy being fabricated in the soft condition and hardened by swaging and heating.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-14 | 1974-12-14 | 1975-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-14 | 1978-12-14 | 1979-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-14 | 1982-12-14 | 1983-06-15 | $7700.00 | Window Closed / Lapsed |