US4667906A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Replaceable tip for aircraft leading edge
Assignee: Grumman Corp
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Filing: 1985-04-02
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Granted: 1987-05-26
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Expires: 2005-04-02
Abstract
Abstract A replaceable tip for an aircraft leading edge and which has a metallic abrasion shield glove removably mounted to the leading edge of the aircraft, fasteners for securing the abrasion shield glove to the leading edge of the aircraft, and a non-metallic resilient cushion insert fixedly attached to the abrasion shield glove so that the resilient cushion insert forms a dampening arrangement which reduces the amount of damage to the aircraft leading edge when the replaceable leading edge tip is hit.
Inventors
- 👤 Jes/u/ s A. Su/a/ rez
- 👤 John R. Ewen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:10
CPC Classifications
B; B64; B64C; B64C3/00; B64C3/28
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
132 words
A replaceable tip for an aircraft leading edge, comprising: a metallic abrasion shield glove removably mounted to the leading edge of the aircraft; means for securing said abrasion shield glove to the leading edge of the aircraft; a non-metallic resilient cushion insert fixedly attached to said abrasion shield glove and forming a dampening arrangement which reduces the amount of damage to the aircraft leading edge when the replaceable leading edge tip is hit; and a shim disposed between said non-metallic resilient cushion and the leading edge of the aircraft so that the area between said non-metallic resilient cushion and the leading edge of the aircraft is entirely filled by said shim, said shim assisting in bonding said non-metallic resilient cushion to the leading edge of the aircraft and assisting said dampening arrangement.
Claim 2
Dependent Claim
132 words
A replaceable tip for an aircraft leading edge, comprising: a metallic abrasion shield glove removably mounted to the leading edge of the aircraft; means for securing said abrasion shield glove to the leading edge of the aircraft; a non-metallic resilient cushion insert fixedly attached to said abrasion shield glove and forming a dampening arrangement which reduces the amount of damage to the aircraft leading edge when the replaceable leading edge tip is hit; and a shim disposed between said non-metallic resilient cushion and the leading edge of the aircraft so that the area between said non-metallic resilient cushion and the leading edge of the aircraft is entirely filled by said shim, said shim assisting in bonding said non-metallic resilient cushion to the leading edge of the aircraft and assisting said dampening arrangement.
Claim 3
Dependent Claim
21 words
A replaceable leading edge tip as defined in claim 1, wherein said securing means include a plurality of double flush fasteners.
Claim 4
Dependent Claim
19 words
A replaceable leading edge tip as defined in claim 1, wherein said abrasion shield glove is composed of aluminum.
Claim 5
Dependent Claim
21 words
A replaceable leading edge tip as defined in claim 1, wherein said resilient cushion insert is composed of fiberglass reinforced nylon.
Claim 6
Dependent Claim
28 words
A replaceable leading edge tip as defined in claim 1, wherein said abrasion shield glove comprises a tip portion, a first leg portion, and a second leg portion.
Claim 7
Dependent Claim
28 words
A replaceable leading edge tip as defined in claim 5, wherein said resilient cushion insert comprises a nose portion, a first side portion, and a second side portion.
Claim 8
Dependent Claim
55 words
A replaceable leading edge tip as defined in claim 6, wherein said nose portion of said resilient cushion insert sits against said tip portion of said abrasion shield glove and said first and second side portions of said resilient cushion insert sit against said first and second leg portions, respectively, of said abrasion shield glove.
Claim 9
Dependent Claim
28 words
A replaceable leading edge tip as defined in claim 5, wherein said abrasion shield glove further comprises a first leg portion extension and a second leg portion extension.
Claim 10
Dependent Claim
31 words
A replaceable leading edge tip as defined in claim 8, wherein said first and second leg portion extensions have lengths that are entirely traversed by the leading edge of the aircraft.
Claim 11
Dependent Claim
41 words
A replaceable leading edge tip as defined in claim 6, wherein said resilient cushion insert further comprises a back portion lying in a first plane and the leading edge of the aircraft has a front portion lying in a second plane.
Claim 12
Dependent Claim
41 words
A replaceable leading edge tip as defined in claim 10, wherein said second plane of said front portion of the leading edge of the aircraft is disposed parallel to said first plane of said back portion of said resilient cushion insert.
Claim 13
Dependent Claim
22 words
A replaceable leading edge tip as defined in claim 1, wherein said resilient cushion insert is bonded to said abrasion shield glove.
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) | 1990-05-25 | 1990-11-24 | 1991-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-05-25 | 1994-11-24 | 1995-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-05-25 | 1998-11-24 | 1999-05-26 | $7700.00 | Window Closed / Lapsed |