US3701552A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite construction for nipple used in ground starting for jet engines
Assignee: Bobrick Aero Missile Products
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Filing: 1970-10-19
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Granted: 1972-10-31
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Expires: 1990-10-19
Abstract
Abstract A nipple construction particularly adapted for use in aircraft cooperative with a corresponding coupling wherein optimum structural and durability characteristics, consistent with minimum weight design criteria, are obtained by the incorporation in said nipple of a first member of lightweight metal having a second member or sleeve of greater wear resistance and structural strength encompassing said first member and imparting said wear resistance and structural strength to a majority of the external surface of said nipple by acting as a buffer to absorb wear and impact arising out of the many connect and disconnect operations to which nipples of this type are usually subjected.
Inventors
- 👤 Arnold A Cowan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:19
CPC Classifications
F; F16; F16L; F16L41/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
200 words
In a connector construction for aircraft and the like, the combination of: a first member of light-weight material as compared to a second member hereinafter defined, having smooth walls and an extending generally tubular end defining an outer edge and having an integrally-formed opposite end adapted for attachment to an aircraft, said tubular end being provided with two external shoulders; and a second member secured to said first member and being of high-strength material, as compared to said first member, having a first end portion exterior of said first member thereby defining a smooth-walled sleeve of larger exterior diameter than the portion of said first member it ensheaths, and a second end portion extending generally beyond said generally tubular end of said first member and having an internally formed shoulder directly abutting said outer edge of said first member and being adapted for quick connect and disconnect interfitting engagement with a fluid line coupling, said first end portion of said second member being in direct abutting engagement with said two external shoulders of said first member, all said abutting shoulders acting to absorb axial impact forces and to thereby minimize the transmission per unit area thereof to said first member.
Claim 2
Dependent Claim
200 words
In a connector construction for aircraft and the like, the combination of: a first member of light-weight material as compared to a second member hereinafter defined, having smooth walls and an extending generally tubular end defining an outer edge and having an integrally-formed opposite end adapted for attachment to an aircraft, said tubular end being provided with two external shoulders; and a second member secured to said first member and being of high-strength material, as compared to said first member, having a first end portion exterior of said first member thereby defining a smooth-walled sleeve of larger exterior diameter than the portion of said first member it ensheaths, and a second end portion extending generally beyond said generally tubular end of said first member and having an internally formed shoulder directly abutting said outer edge of said first member and being adapted for quick connect and disconnect interfitting engagement with a fluid line coupling, said first end portion of said second member being in direct abutting engagement with said two external shoulders of said first member, all said abutting shoulders acting to absorb axial impact forces and to thereby minimize the transmission per unit area thereof to said first member.
Claim 3
Dependent Claim
33 words
The connector in accordance with claim 1 wherein said external shoulders are normal to the axis of said second member and said opposite end is flanged for ready securement to a support structure.
Claim 4
Dependent Claim
24 words
The connector in accordance with claim 1 wherein said first and second members are secured to each other by a plurality of spaced rivets.
Claim 5
Dependent Claim
20 words
The connector in accordance with claim 3 wherein three rivets spaced 120* apart secure said first and second members together.
Claim 6
Dependent Claim
24 words
The connector in accordance with claim 4 wherein said internally formed shoulder is at a right angle to said edge of said first member.
Claim 7
Dependent Claim
25 words
The connector in accordance with claim 5 wherein said second member defining said sleeve ensheaths a majority of the exterior surface of said first member.
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) | 1975-10-31 | 1976-05-01 | 1976-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-31 | 1980-05-01 | 1980-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-31 | 1984-05-01 | 1984-10-31 | $7700.00 | Window Closed / Lapsed |