US 9,810,206 B2
Quick connector for hydraulic hose coupling
Patrick E. Considine, Jr., Aurora, IL (US); and Carl H. Rempert, Shorewood, IL (US)
Assigned to Caterpillar Inc., Peoria, IL (US)
Filed by Caterpillar Inc., Peoria, IL (US)
Filed on Mar. 16, 2015, as Appl. No. 14/658,974.
Prior Publication US 2016/0273693 A1, Sep. 22, 2016
Int. Cl. F16L 37/133 (2006.01); F04B 17/05 (2006.01); F16L 37/138 (2006.01)
CPC F04B 17/05 (2013.01) [F16L 37/133 (2013.01); F16L 37/138 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A hydraulic fluid line coupling system, comprising:
a female fitting comprising an inner core, a radially outwardly directed rib, a plurality of flexible fingers integrally connected to and cantilevered away from the radially outwardly directed rib, and a receiving space radially positioned between the inner core and the plurality of flexible fingers integrally connected to and cantilevered away from the radially outwardly directed rib, the receiving space longitudinally positioned between a cylindrical distal end and the radially outwardly directed rib;
a male fitting received in the receiving space of the female fitting; and
a collar surrounding the female fitting and the male fitting, wherein the female fitting further includes a radially outwardly directed shoulder, wherein a the distal end of the male fitting engages the radially outwardly directed shoulder rib of the female fitting.