US4417709A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spreading device
Assignee: US Philips Corp
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Filing: 1981-03-17
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Granted: 1983-11-29
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Expires: 2001-03-17
Abstract
Abstract A radar chaff spreading device for mounting on an airplane equipment support beam. The device includes attachment means from which additional equipment, such as a missile, can be suspended. The chaff spreading device further includes coupling means for receiving power and control signals from the airplane and for transmitting control signals to the additional equipment.
Inventors
- 👤 Bjorn O. Fehrm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:33
CPC Classifications
F; F41; F41H; F41H11/00; F41H11/02; B; B64; B64D; B64D1/00; B64D1/16
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
209 words
A chaff spreading device for attachment to equipment supporting means on an aircraft comprising: (a) an aerodynamically shaped cover having an ejection opening; (b) a magazine disposed within the cover for containing bundles of the chaff; (c) displacement means for moving bundles of the chaff toward the ejection opening; (d) a driving device for moving the displacement means; (e) first attachment means provided on a first side of the cover for attaching the chaff spreading device to the equipment supporting means on the airplane; (f) second attachment means provided on a second side of the cover for cooperating with suspension means of equipment to be suspended from the airplane, thereby supporting the equipment; (g) a coupling member provided on the first side of the cover for coupling with a corresponding member on the aircraft to receive power and control signals from the aircraft; (h) a contact member provided on the second side of the cover for coupling with a corresponding member on the equipment to be suspended, effecting transmission to the equipment of signals received from the aircraft; and (i) transfer means connecting the coupling member to the driving device and the contact member for providing received power and control signals to the driving device and the contact member.
Claim 2
Dependent Claim
209 words
A chaff spreading device for attachment to equipment supporting means on an aircraft comprising: (a) an aerodynamically shaped cover having an ejection opening; (b) a magazine disposed within the cover for containing bundles of the chaff; (c) displacement means for moving bundles of the chaff toward the ejection opening; (d) a driving device for moving the displacement means; (e) first attachment means provided on a first side of the cover for attaching the chaff spreading device to the equipment supporting means on the airplane; (f) second attachment means provided on a second side of the cover for cooperating with suspension means of equipment to be suspended from the airplane, thereby supporting the equipment; (g) a coupling member provided on the first side of the cover for coupling with a corresponding member on the aircraft to receive power and control signals from the aircraft; (h) a contact member provided on the second side of the cover for coupling with a corresponding member on the equipment to be suspended, effecting transmission to the equipment of signals received from the aircraft; and (i) transfer means connecting the coupling member to the driving device and the contact member for providing received power and control signals to the driving device and the contact member.
Claim 3
Dependent Claim
35 words
A chaff spreading device as in claim 1 wherein said second attachment means comprises means for slidably supporting a missile and a locking mechanism which can be actuated from the airplane to release the missile.
Claim 4
Dependent Claim
24 words
A chaff spreading device as in claim 1 including means for maintaining the device's center of gravity in a frontal part of the device.
Claim 5
Dependent Claim
18 words
A chaff spreading device as in claim 3 wherein said frontal part of the device contains a ballast.
Claim 6
Dependent Claim
40 words
A chaff spreading device as in claim 3 wherein said magazine comprises a pair of cells terminating in separate ejection openings and means for simultaneously moving bundles of chaff contained in the cells in opposite directions toward said ejection openings.
Claim 7
Dependent Claim
40 words
A chaff spreading device as in claim 1 wherein the magazine comprises a self-supporting unit adapted for longitudinal insertion into the cover and where said device includes guiding elements for guiding the magazine into a predetermined position within the cover.
Claim 8
Dependent Claim
42 words
A chaff spreading device as in claim 6 wherein the driving device is contained within an end of the magazine remote from the ejection opening and where said magazine includes an electrical contact member for facilitating electrical connection with said transfer means.
References Cited (Backward Citations)
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Cited
US2940362A
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US2955787A
Cited
US3276317A
Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-11-28 | 1987-05-30 | 1987-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-11-28 | 1991-05-30 | 1991-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-11-28 | 1995-05-30 | 1995-11-29 | $7700.00 | Window Closed / Lapsed |