the pin 112 the retainer 110 also comprises upwardly extending portions 130 132 134 and 136 which create a biasing forced upwardly against the rim 30 for example the retainer 110 may be relatively springy such that the upwardly extending portions 130 132 134 and 136 create a spring force against the rim 30 accordingly if the cup 20 is lowered into the receptacle 18 at a topside of the access hood or cover 12 then the retainer 110 may be engaged with the cup 20 at an underside of the cover 12 such that the upwardly extending portions 130 132 134 and 136 springably bias and retain the cup 20 within the receptacle 18 it also should be noted that the tab or catch member 32 of the cup 20 may be extended under a portion of the access hood or cover 12 within the receptacle 18 such that the catch member 32 vertically retains one end of the latch assist mechanism 16 within the cover 12 as illustrated in the assembled view of fig3 the sled 22 the intermediate arm 24 and the leverage member or arm 26 are all self contained within the open ended housing or cup 20 it also should be noted that the latch assist mechanism 16 has a relatively low profile attributed to the low profile geometry of each respective component i e the cup 20 the sled 22 the intermediate arm 24 and the leverage member or arm 26 the low profile of the latch assist mechanism 16 also may be attributed to the collapsible configuration of the sled 22 the intermediate.