Patent US3841670A successfully refreshed from Google Patents.
US3841670A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for connecting pipes to an aircraft engine
Assignee: ZF International UK Ltd
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Filing: 1972-07-07
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Granted: 1974-10-15
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Expires: 1992-07-07
Abstract
Abstract The invention relates to apparatus for making a plurality of simultaneous pipe connections to an aircraft engine. The apparatus comprises a mounting trunnion (1) for the engine (2), a first annular member (3) fixed to the trunnion (1) and having a plurality of through passages (6). A pipe (10) is connected to one end of each passage (6) and the other ends of the passages (6) are arranged on a pitch circle about the trunnion axis so as to be sealingly mated with an equal number of passages (12) in an annular member (11). Passages (12) communicate with pipes (16) and members (3) (11) are secured together by a clamping ring (17).
Inventors
- 👤 H Bottoms
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:41
CPC Classifications
F; F16; F16L; F16L39/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
173 words
An apparatus for making a plurality of simultaneous pipe connections to an aircraft engine, comprising a mounting trunnion for the engine, a first annular member fixedly attached to the trunnion and the engine and including a plurality of first through passages, a plurality of pipes sealingly extending from one end of each of said first passages, said first passages having open ends lying on a pitch circle about the axis of the trunnion, a second annular member surrounding said trunnion and adapted to engage the first annular member and having a plurality of second through passages, a plurality of pipes sealingly extending from one end of each of said second passages, said second passages being disposed so that their other ends align, in use, with the open ends of corresponding first passages, sealing means at the mating faces of the first and second passages and clamping means to urge the first and second annular members together and to simultaneously connect the plurality of said first passages with the plurality of said second passages.
Claim 2
Independent Claim
173 words
An apparatus for making a plurality of simultaneous pipe connections to an aircraft engine, comprising a mounting trunnion for the engine, a first annular member fixedly attached to the trunnion and the engine and including a plurality of first through passages, a plurality of pipes sealingly extending from one end of each of said first passages, said first passages having open ends lying on a pitch circle about the axis of the trunnion, a second annular member surrounding said trunnion and adapted to engage the first annular member and having a plurality of second through passages, a plurality of pipes sealingly extending from one end of each of said second passages, said second passages being disposed so that their other ends align, in use, with the open ends of corresponding first passages, sealing means at the mating faces of the first and second passages and clamping means to urge the first and second annular members together and to simultaneously connect the plurality of said first passages with the plurality of said second passages.
Claim 3
Dependent Claim
28 words
An apparatus as claimed in claim 1 in which the trunnion has a through bore which communicates with the engine via a chamber in the first annular member.
Claim 4
Dependent Claim
35 words
An apparatus as claimed in claim 1 in which the said first through passages are L-shaped and the said one end of each second passage extends radially of the axis of the second annular member.
Claim 5
Dependent Claim
35 words
An apparatus as claimed in claim 1 in which the said second through passages are L-shaped and the said one end of each second passage extends radially of the axis of the second annular member.
Claim 6
Dependent Claim
48 words
An apparatus as claimed in claim 1 in which the sealing means comprises a piston-like member each of which is slidable in a bore in each of the passages in one of the annular members, each said piston-like member including a seal directed outwardly of the said bore.
Claim 7
Dependent Claim
23 words
An apparatus as claimed in claim 5 in which each said piston-like member is biased outwardly of the said bore by a spring.
Claim 8
Dependent Claim
45 words
An apparatus as claimed by claim 1 in which the clamping means comprises a threaded ring respectively engageable with a flange on one annular member and with a threaded portion on the other annular member and with a threaded portion on the other annular member.
Claim 9
Dependent Claim
46 words
An apparatus as claimed in claim 7 in which the dimensions of the ring and the said threaded portion are such that when the ring is fully engaged with the threaded portion the adjacent faces of the first and second annular members are not in contact.
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) | 1977-10-14 | 1978-04-15 | 1978-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-14 | 1982-04-15 | 1982-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-14 | 1986-04-15 | 1986-10-15 | $7700.00 | Window Closed / Lapsed |