US 12,173,821 B2
Adjustable assembly for connecting a sprinkler-branch line to a fire-sprinkler head
Thomas Savage, Dylestown, PA (US)
Filed by Thomas Savage, Dylestown, PA (US)
Filed on Jan. 21, 2022, as Appl. No. 17/581,451.
Application 17/581,451 is a continuation in part of application No. 17/399,011, filed on Aug. 10, 2021.
Claims priority of provisional application 63/139,960, filed on Jan. 21, 2021.
Prior Publication US 2022/0316636 A1, Oct. 6, 2022
Int. Cl. F16L 27/12 (2006.01); A62C 35/68 (2006.01); F16L 43/00 (2006.01)
CPC F16L 27/12 (2013.01) [A62C 35/68 (2013.01); F16L 43/00 (2013.01)] 4 Claims
OG exemplary drawing
 
1. An apparatus, comprising:
a fluid conveyance conduit to provide a portion of a fluid path between a first plumbing element and a second plumbing element;
a first telescopic end fitting carried at a first end of the fluid conveyance conduit; and
a second telescopic end fitting carried at a second end of the fluid conveyance conduit, wherein:
the first telescopic end fitting is configured to provide a fluid-tight connection to the first plumbing element and the second telescopic end fitting is configured to provide a fluid-tight connection to the second plumbing element to complete the fluid path, each telescopic end fitting having a user-selectable length along a telescopic length-adjusting axis; and
the first telescopic end fitting comprises:
a male member carrying first straight threads on a first OD;
a female member carrying second straight threads on a first ID, the first and second straight threads being cooperatively sized to engage and permit user adjustment of a relative position of the male member with respect to the female member, and thereby, to adjust a length of the telescopic end fitting along a telescopic length-adjusting axis of the first telescopic end fitting; and
a first fluid seal carried by the male member for reciprocal fluid-tight sealing engagement of the first fluid seal between the male and female members, wherein:
a proximal end of the female member has a first diameter sized to receive the male member; and
a distal end of the female member is necked-down to provide a second diameter that is smaller than the first diameter, the distal end being configured to couple with one of the first and second plumbing element.