A threaded coupling wherein external threads of the male body of the male coupling half are in mating engagement with internal threads of the female sleeve of the female coupling half. The female sleeve includes an interior hook and the male body includes a locking lever receptacle recessed therein.
A threaded coupling wherein external threads of the male body of the male coupling half are in mating engagement with internal threads of the female sleeve of the female coupling half. The female sleeve includes an interior hook and the male body includes a locking lever receptacle recessed therein. The locking lever pivotally resides in the receptacle and interlocks circumferentially spaced recesses in the generally cylindrically-shaped hook of the female sleeve uniting the male and female. A tensioning O-ring secures the locking lever to the male body. A locking sleeve extends circumferentially about the male body and prohibits the release of the hook of the female sleeve from a recess in the locking lever unless a window is aligned with the locking lever. A process for locking the threaded coupling is also disclosed.
대표청구항▼
1. A threaded coupling, comprising: a generally cylindrically shaped male coupling half;a generally cylindrically shaped female coupling half;said male coupling half includes a male body, said male body includes an exterior, and said exterior of said male body includes external threads thereon;said
1. A threaded coupling, comprising: a generally cylindrically shaped male coupling half;a generally cylindrically shaped female coupling half;said male coupling half includes a male body, said male body includes an exterior, and said exterior of said male body includes external threads thereon;said female coupling half includes a female sleeve and a female body;said interior of said female sleeve includes internal threads;said female sleeve includes an end portion;said end portion of said female sleeve includes a hook portion;said hook portion of said female sleeve being generally cylindrically shaped;said generally cylindrically-shaped hook portion includes raised portions and circumferentially spaced recesses therein;said male body includes a locking lever receptacle recessed in said exterior of said male body, and said locking lever receptacle of said male body further includes first and second slots therein;a locking lever;said locking lever includes first and second pivot pins;said locking lever includes a blocking end portion;said first and second pivot pins of said locking lever reside in said first and second slots of said locking lever receptacle of said male body, said locking lever pivoting about said pivot pins;said locking lever includes an O-ring slot therein;said male body includes an O-ring slot therein which extends circumferentially around said generally cylindrically shaped male body and is aligned with said O-ring slot in said locking lever;a tensioning O-ring, and said tensioning O-ring extending circumferentially in said O-ring slot in said male body and in said O-ring slot in said locking lever biasing said blocking end portion of said locking lever to a raised position for engagement with said cylindrically-shaped hook portion of said female sleeve including said circumferentially spaced recesses in said cylindrically-shaped hook portion of said female sleeve;said tensioning O-ring securing said locking lever in said locking lever receptacle;during engagement of said male coupling half and said female coupling half, said external threads of said male body engage said internal threads of said female sleeve, said female sleeve of said female coupling half is rotated with respect to said male coupling half and said cylindrically-shaped hook portion of said female sleeve including said raised portions and said circumferentially spaced recesses in said cylindrically-shaped hook portion of said female sleeve engage said blocking end portion of said locking lever alternately pivoting said blocking end portion of said locking lever about said first and second pivot pins between a position proximate said receptacle of said male body when said raised portions of said generally cylindrically-shaped hook portion engages said blocking end portion of said locking lever and a position distal with respect to said receptacle of said male body when said circumferentially spaced recesses of said cylindrically-shaped hook portion engage said blocking end portion of said locking lever, and as rotation of said female sleeve continues said female sleeve moves said female body toward said male body until threaded engagement of said female coupling half and said male coupling half is complete;said blocking end portion of said locking lever is in said raised position when said cylindrically-shaped hook portion and one of said circumferentially spaced recesses thereof are fully engaged with said blocking end portion of said locking lever and threaded engagement of said female coupling half and said male coupling half is complete;a locking sleeve;said locking sleeve being generally cylindrically shaped, said locking sleeve engages said exterior of said male body and extends circumferentially thereabout; and,said locking sleeve prevents said female sleeve and said male body from being unthreaded. 2. A threaded coupling as claimed in claim 1, wherein said locking sleeve includes an access window which allows said coupling to be unlocked and uncoupled when said access window is aligned with said locking lever. 3. A threaded coupling as claimed in claim 2, wherein said locking sleeve includes a groove which retains a second O-ring therein, said second O-ring in engagement with said exterior of said male coupling and gripping said exterior of said male coupling inhibiting unwanted rotation of said sleeve with respect to said male body thus preventing inadvertent alignment of said access window with said locking lever. 4. A threaded coupling as claimed in claim 3, wherein: said generally cylindrically shaped hook portion of said female sleeve engages said locking sleeve when said male coupling half and said female coupling half are coupled together. 5. A threaded coupling as claimed in claim 1, wherein: said locking sleeve includes an access window;said access window allows said coupling to be unlocked and uncoupled when said access window is aligned with said locking lever; and,when said access window of said locking sleeve is not aligned with said locking lever and said threaded coupling is locked together. 6. A threaded coupling as claimed in claim 1, further comprising: a snap ring;a snap ring receptacle in said male body; and,said snap ring resides in said male body and secures said locking sleeve. 7. A threaded coupling as claimed in claim 1, further comprising: said locking lever includes a bottom surface;said bottom surface includes a locking end portion and a sloped end portion;said locking end portion bottom surface being inclined with respect to said locking lever receptacle in said male body when said tensioning O-ring resides in said O-ring slot of said locking lever and said O-ring slot of said male body; and,said sloped end portion of said bottom surface being parallel to and in proximity to said locking lever receptacle. 8. A threaded coupling as claimed in claim 1, wherein: said locking lever includes a bottom surface;said bottom portion of said locking lever being spaced apart from said locking lever receptacle; and,said locking lever being rotatable about said first and second pivot pins without said locking lever engaging said locking lever receptacle of said male body. 9. A threaded coupling as claimed in claim 8, further comprising: said bottom surface includes a locking end portion and a sloped end portion;said locking end portion of said bottom surface inclined with respect to said locking lever receptacle in said male body when said tensioning O-ring resides in said O-ring slot of said locking lever and said O-ring slot of said male body; and,said sloped end portion of said bottom surface being parallel to and in proximity to said locking lever receptacle. 10. A threaded coupling as claimed in claim 1, wherein: said locking lever includes a bottom surface;said bottom surface of said locking lever being spaced apart from said locking lever receptacle;said bottom surface includes a locking end portion and a sloped end portion;said locking end portion of said bottom surface being inclined with respect to said locking lever receptacle in said male body when said tensioning O-ring resides in said O-ring slot of said locking lever and said O-ring slot of said male body;said sloped end portion of said bottom surface being parallel to and in proximity to said locking lever receptacle;said locking end portion of said bottom surface being planar and said sloped end portion of said bottom surface being planar and intersect each other along a line of intersection;said first and second pins being coaxial with respect to one another, said coaxial pins sharing an axis;a radius from said axis of said pins to said line of intersection; and,said radius being smaller than said distance from said axis of said pins to said locking lever receptacle when said first and second pin reside in said first and second slots of said receptacle. 11. A threaded coupling as claimed in claim 1, wherein: said locking lever receptacle of said male body includes a flat bottom surface;said locking lever receptacle includes a first side wall, a second side wall, a first end wall and a second end wall;said male body includes a raised portion; and,said raised portion includes said first and second slots which receive said first and second pins of said locking lever. 12. A threaded coupling as claimed in claim 1, wherein: said locking sleeve includes an interior portion, said interior portion includes a contour engaging said locking lever and which locks said locking lever against rotation when said contour of said locking sleeve is positioned adjacent said locking lever. 13. A threaded coupling, comprising: a generally cylindrically shaped male coupling half;a generally cylindrically shaped female coupling half;said male coupling half includes a male body, said male body includes an exterior, and said exterior of said male body includes external threads thereon;said female coupling half includes a female sleeve and a female body;said interior of said female sleeve includes internal threads;said female sleeve includes an end portion;said end portion of said female sleeve includes a hook portion;said hook portion of said female sleeve being generally cylindrically-shaped;said generally cylindrically-shaped hook portion includes circumferentially spaced recesses therein;a locking lever;said locking lever pivotally recessed in said exterior of said male body;said locking lever includes a blocking end portion pivotally biased to a first raised position for engagement with said cylindrically-shaped hook portion of said female sleeve including said circumferentially spaced recesses in said cylindrically-shaped hook portion of said female sleeve;during engagement of said male coupling half and said female coupling half, said external threads of said male body engage said internal threads of said female sleeve, said female sleeve of said female coupling half fully engages said male coupling half and one of said circumferentially spaced recesses of said cylindrically-shaped hook portion engages said blocking end portion of said locking lever, and, said blocking end portion of said locking lever is pivotally biased to said raised position and resides in said one of said circumferentially spaced recesses of said generally cylindrically-shaped hook portion of said female sleeve;a locking sleeve;said locking sleeve being generally cylindrically shaped, said locking sleeve engages said exterior of said male body and extends circumferentially thereabout; and,said locking sleeve prevents pivoting of said locking lever maintaining said pivotal biasing of said blocking end portion of said locking lever positioning said blocking end portion of said locking lever in said one of said circumferentially spaced recesses of said generally cylindrically-shaped hook portion of said female sleeve preventing said female sleeve and said male body from being unthreaded. 14. A threaded coupling as claimed in claim 13, further comprising: said locking sleeve includes an access window which allows threading and unthreading of said male body and said female sleeve when said access window is aligned with said locking lever so as to permit pivoting of said locking lever; and,said locking sleeve includes an interior portion, said interior portion includes a contour which engages said lever and which locks said locking lever against rotation when said contour of said locking sleeve is positioned adjacent said locking lever. 15. A threaded coupling as claimed in claim 13, further comprising: said locking sleeve includes an interior portion, said interior portion includes a contour which engages said lever and locks said locking lever against rotation when said contour of said locking sleeve is positioned adjacent said locking lever. 16. A process for locking a threaded coupling, said coupling includes: a male coupling half, said male coupling half includes: a male body, said male body having external threads; said male body includes a locking sleeve, said locking sleeve includes an access window; said male body includes an O-ring slot therein; a locking lever receptacle; a raised portion, said raised portion includes first and second slots; a locking lever, said locking lever includes a blocking end portion, first and second pins, an O-ring slot and a sloped end;a female coupling half includes: a female body and a female sleeve having internal threads; said female sleeve further includes an end portion, said end portion includes a generally cylindrically-shaped hook, and said generally-cylindrically-shaped hook includes raised portions and circumferentially spaced recesses therein;comprising the steps of:inserting said locking lever into said receptacle of said male body and inserting said first and second pins of said locking lever into said first and second slots of said raised portion of said male member, said first and second pins of said locking lever permitting rotation of said lever about said pins;positioning said access window of said locking sleeve in alignment with said locking lever;positioning an O-ring in said O-ring slot of said male body and in said O-ring slot of said locking lever securing said locking lever with respect to said male body, said O-ring permitting rotation of said locking lever about said pins with resistance to said rotation;progressively threading said female sleeve having internal threads onto said male body having external threads moving said generally cylindrically-shaped hook toward said locking lever;engaging said generally cylindrically-shaped hook of said female sleeve with said blocking end portion of said locking lever, and as said progressive threading continues, said hook including said raised portions and said circumferentially spaced recesses are rotated with respect to said external threads of said male body moving and forcing said blocking end of said locking lever to rotate said blocking end portion radially downwardly toward said male body when one of said raised portions of said cylindrically-shaped hook engages said blocking end portion and then said blocking end portion of said locking lever rotates radially upwardly away from said male body when one of said circumferentially spaced recesses of said generally cylindrically-shaped hook engages said blocking end portion of said locking lever;continuing said rotation of said generally cylindrically-shaped hook portion of said female sleeve until said female sleeve engages said locking sleeve of said male body;adjusting the rotational position of said female sleeve to ensure that one of said circumferentially spaced recesses of said generally cylindrically-shaped hook engages said blocking end portion of said locking lever;rotating said access window of said locking sleeve to a position not aligned with said locking lever locking said male coupling half and said female coupling half together. 17. A process for locking a threaded coupling as claimed in claim 16, wherein: said locking sleeve includes an interior portion, said interior portion includes a contour which engages said lever and which locks said locking lever against rotation when said contour of said locking sleeve is positioned adjacent said locking lever; and, further comprising the steps of:rotating, forcefully, said locking sleeve between locked and unlocked positions; and,inhibiting rotation of said locking sleeve against unwanted rotation of said locking sleeve by vibration by interposing an O-ring between said male body and said sleeve such that force is required to rotate said locking sleeve with respect to said male body. 18. A process for locking a threaded coupling as claimed in claim 16, wherein: said locking lever includes a bottom portion and said lever receptacle includes a flat surface and said bottom portion of said locking lever is spaced apart from said flat surface of said receptacle thus enabling said locking lever to pivot without engagement with said flat surface of said receptacle.
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