US3554091A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coupling and power control device
Assignee: Ingersoll Rand Co
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Filing: 1968-08-26
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Granted: 1971-01-12
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Expires: 1988-08-26
Abstract
Abstract An elongate coupling member having means for attaching at either ends thereof a hook block and a hoist cable adapter. Within the coupling member are fluid passageways and valves, the valves being operated by means coupled to a slidable sleeve which envelopes the coupling member. The valves and passageways communicate pressured fluid with the hoist, or prohibit the communication, in response to sleeve movement, to power the hoist to raise or lower an attached hook block.
Inventors
- 👤 Emanuel G Spyridakis
- 👤 Otmar M Ulbing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:13
CPC Classifications
B; B66; B66D; B66D1/00; B66D1/02; B66D1/08; B66D2700/00; B66D2700/01; B66D2700/0125; B66D2700/0133; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87169; Y10T137/87233; Y10T137/87241; Y10T137/87917; Y10T137/88062
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
266 words
A coupling and power control device for controlling operation of a fluid-actuated device, comprising: an elongate member having a longitudinal axis; header blocks at opposite axial ends of said member; means for securing said header blocks to said elongate member; one of said header blocks having means for attaching thereto power output means of a fluid-actuated device; the other of said header blocks having: means for attaching thereto working-handling means; porting means in said one of said header blocks for admitting fluid; and porting means in said one header block for exhausting fluid to the fluid-actuated device; said elongate member having communicating inlet and outlet passageways formed therewithin for conducting fluid therethrough; valving means, including a plurality of separate relatively movable valving elements interposed between said inlet and outlet passageways, operative for controlling the conduct of fluid through said elongate member; and externally operated actuator means independent of said power output means, carried by said elongate member, directly operative of said valving elements, said actuator means being detached from said valving elements for abutting actuation thereof; said passageways each having a given terminal end in communication with one of said porting means, opposite terminal ends of said passageways each terminating within said elongate member and opening on said valving elements; and said actuator means being axially movable, relative to said member, in both axial directions and effective, upon being moved in one axial direction, directly to cause operation of only one of said valving elements, and directly to cause operation of only one other of said valving elements upon movement thereof in the opposite axial direction.
Claim 2
Dependent Claim
266 words
A coupling and power control device for controlling operation of a fluid-actuated device, comprising: an elongate member having a longitudinal axis; header blocks at opposite axial ends of said member; means for securing said header blocks to said elongate member; one of said header blocks having means for attaching thereto power output means of a fluid-actuated device; the other of said header blocks having: means for attaching thereto working-handling means; porting means in said one of said header blocks for admitting fluid; and porting means in said one header block for exhausting fluid to the fluid-actuated device; said elongate member having communicating inlet and outlet passageways formed therewithin for conducting fluid therethrough; valving means, including a plurality of separate relatively movable valving elements interposed between said inlet and outlet passageways, operative for controlling the conduct of fluid through said elongate member; and externally operated actuator means independent of said power output means, carried by said elongate member, directly operative of said valving elements, said actuator means being detached from said valving elements for abutting actuation thereof; said passageways each having a given terminal end in communication with one of said porting means, opposite terminal ends of said passageways each terminating within said elongate member and opening on said valving elements; and said actuator means being axially movable, relative to said member, in both axial directions and effective, upon being moved in one axial direction, directly to cause operation of only one of said valving elements, and directly to cause operation of only one other of said valving elements upon movement thereof in the opposite axial direction.
Claim 3
Dependent Claim
102 words
The invention, according to claim 1, wherein: said valving means further includes inlet and outlet fluid chambers formed within said elongate member; said inlet and outlet passageways open into said inlet and outlet chambers, respectively; said elongate member further having an axial-extending control chamber formed therewithin, between said inlet and outlet chambers, with walls at either ends thereof separating said control chamber from said inlet and outlet chambers; said walls each having a single aperture formed therein; and wherein said one and another valving elements are displacable, and are normally constrained in sealing penetration of said respective single apertures by resilient means.
Claim 4
Dependent Claim
30 words
The invention, according to claim 2, wherein said actuator means comprises a spool, slidable confined within said control chamber, having opposite ends disposed for abutting engagement with said vAlving elements.
Claim 5
Dependent Claim
33 words
The invention, according to claim 3, wherein said spool has at least one axially extending borehole formed therein, opening on said opposite ends, for communicating between said either ends of said control chamber.
Claim 6
Dependent Claim
20 words
The invention, according to claim 3, wherein said elongate member further includes means for venting fluid from said control chamber.
Claim 7
Dependent Claim
36 words
The invention, according to claim 2, wherein: said elongate member further has a borehole formed therein for venting fluid from said control chamber; and said actuator means comprises means for closing off and opening said borehole.
Claim 8
Dependent Claim
62 words
The invention, according to claim 6, wherein: said actuator means further comprises a spool, slidably confined within said control chamber; said spool having opposite ends disposed for abutting engagement with said valving elements to displace said valving elements from constrained sealing of said apertures; and said spool is effective for opening said borehole coincident with displacement of one of said valving elements.
Claim 9
Dependent Claim
49 words
The invention, according to claim 7, wherein said actuator means further comprises: a sleeve slidably disposed about said elongate member; and a pin-actuator carried by said sleeve and having a portion thereof in engagement with said spool for effecting movement of said spool coincident with movement of said sleeve.
Claim 10
Dependent Claim
18 words
A device, according to claim 8, further comprising antifriction means disposed between said sleeve and said elongate member.
Claim 11
Dependent Claim
52 words
The invention, according to claim 8, further including means disposed between said sleeve and said elongate member to constrain said sleeve in a given position relative to said elongate member, and to constrain said spool in a prescribed disposition which accommodates the normally constrained sealing of said apertures by said valving elements.
Claim 12
Dependent Claim
42 words
The invention according to claim 8, wherein said sleeve and pin-actuator are cooperative to cause said spool to displace the valving element in the wall which is adjacent to said inlet chamber, upon said sleeve being moved toward said one header block.
Claim 13
Dependent Claim
80 words
The invention according to claim 6, wherein said actuator means further comprises: a spool, slidably confined within said control chamber, having opposite ends thereof disposed for abutting engagement with said valving elements to displace said valving elements from constrained sealing of said apertures; and said spool is effective for opening said borehole coincident with displacement of the valving element in the wall wall which is adjacent to said outlet chamber, upon said spool being moved toward said other header block.
Claim 14
Dependent Claim
14 words
The invention, according to claim 2, wherein said valving elements are of a poppet-type.
Claim 15
Dependent Claim
28 words
The invention, according to claim 2, further comprising means interposed between said outlet passageway and said porting means for exhausting fluid for regulating the conduct of fluid therebetween.
Claim 16
Dependent Claim
35 words
The invention, according to claim 14, wherein said regulating means is automatically responsive to variations in the force of fluid subsisting in said porting means for exhausting fluid for effecting regulation of fluid conduct therethrough.
Claim 17
Dependent Claim
23 words
A device, according to claim 15, wherein said regulating means have means for adjusting the amount of automatic response thereof to said force.
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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) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |