US4763470A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spring collar coupling
Assignee: Boeing North American Inc
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Filing: 1987-01-30
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Granted: 1988-08-16
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Expires: 2007-01-30
Abstract
Abstract A spring collar coupling (10) is provided for joining opposing fluid conduits. Basically, the spring collar coupling comprises a spring collar (20) in cooperative engagement with a first and second flange member (40, 60) functionally joined by the application of a coaxial force, the insertion of a bayonet locking ring (70) and release of the pressure force to effect a coupling of the aforesaid components.
Inventors
- 👤 Jeffrey K. Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:27
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/42; F02K9/60; F16; F16L; F16L37/00; F16L37/08; F16L37/10; F16L37/113; F16B; F16B2200/00; F16B2200/50; F16B2200/503
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
141 words
A spring collar coupling comprising in combination; a circular spring collar including a plurality of axially-spaced spring collar arms and an annular spring collar recess formed within said collar; a plurality of spring collar slots formed within the end of said collar in opposing relationship to said collar arms and a passageway defined by the circular spring collar; a first hollow tubular-shaped flange member including a raised annular section at one end thereof, a seal gland formed within the raised annular section, retaining pin slots formed axially within a surface portion of the first flange member and retaining pins retainable within the slot; a second hollow tubular-shaped flange member including a raised annular collar and an annular recess formed in the annular collar; and means for locking and securing the flange members in a sealed, mating relationship with the spring collar.
Claim 2
Dependent Claim
141 words
A spring collar coupling comprising in combination; a circular spring collar including a plurality of axially-spaced spring collar arms and an annular spring collar recess formed within said collar; a plurality of spring collar slots formed within the end of said collar in opposing relationship to said collar arms and a passageway defined by the circular spring collar; a first hollow tubular-shaped flange member including a raised annular section at one end thereof, a seal gland formed within the raised annular section, retaining pin slots formed axially within a surface portion of the first flange member and retaining pins retainable within the slot; a second hollow tubular-shaped flange member including a raised annular collar and an annular recess formed in the annular collar; and means for locking and securing the flange members in a sealed, mating relationship with the spring collar.
Claim 3
Dependent Claim
43 words
A spring collar coupling according to claim 1 in which the means for locking and securing the flange members and spring collar comprise: a circular seal; and a circular bayonet locking ring including axial ring slots, both sealably engaged with the spring collar.
Claim 4
Dependent Claim
173 words
A rocket engine having a fuel inlet, oxidizer inlet, fuel conduit, oxidizer conduit and spring collar coupling, said coupling joining said fuel inlet to said fuel conduit and said oxidizer inlet to said oxidizer conduit, and which coupling comprises in combination: a circular spring collar including a plurality of axially-spaced spring collar arms and an annular collar recess formed within said collar; a plurality of spring collar slots formed within the end outset collar in opposing relationship to the collar arm and a passageway defined by the circular spring collar; a first hollow tubular-shaped flange member including a raised annular section at one end thereof, a seal gland formed within the raised annular section, retaining pin slots formed axially within a surface portion of the first flange member and retaining pins retainable within the slot; a second hollow tubular-shaped flange member including a raised annular collar and an annular recess formed in the annular collar; and means for locking and securing the flange members in a sealed, mating relationship with the spring collar.
Claim 5
Dependent Claim
173 words
A rocket engine having a fuel inlet, oxidizer inlet, fuel conduit, oxidizer conduit and spring collar coupling, said coupling joining said fuel inlet to said fuel conduit and said oxidizer inlet to said oxidizer conduit, and which coupling comprises in combination: a circular spring collar including a plurality of axially-spaced spring collar arms and an annular collar recess formed within said collar; a plurality of spring collar slots formed within the end outset collar in opposing relationship to the collar arm and a passageway defined by the circular spring collar; a first hollow tubular-shaped flange member including a raised annular section at one end thereof, a seal gland formed within the raised annular section, retaining pin slots formed axially within a surface portion of the first flange member and retaining pins retainable within the slot; a second hollow tubular-shaped flange member including a raised annular collar and an annular recess formed in the annular collar; and means for locking and securing the flange members in a sealed, mating relationship with the spring collar.
Claim 6
Dependent Claim
47 words
A rocket engine having a spring collar coupling according to claim 3 in which the means for locking and securing the flange members and spring collar comprise: a circular seal; and a circular bayonet locking ring including axial ring slots, both sealably engaged with the spring collar.
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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) | 1991-08-16 | 1992-02-15 | 1992-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-08-16 | 1996-02-15 | 1996-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-08-16 | 2000-02-15 | 2000-08-16 | $7700.00 | Window Closed / Lapsed |