Plug-in type pump assembly

In combination, a pump assembly and a receiver therefor, said pump assembly comprising a pump housing having an inner end and an outer end, pivotal handle means mounted on said outer end, and cam means on said handle means for pivotal movement therewith, and said receiver having a bore for receipt of said pump assembly, and lug means engageable by said cam means, said pump assembly being rotatable in opposite directions upon insertion of said pump assembly to a non-operating position extending part way into said receiver to engage and disengage said cam means from said lug means, and said handle means being pivotal between closed and open positions when said cam means is engaged with said lug means to cause a camming action of said cam means against said lug means to respectively push said pump assembly further into said receiver to an operating position and pull said pump assembly back out to said non-operating position, and a plurality of seal means between said pump assembly and receiver which are respectively engaged and disengaged during camming movement of said pump assembly between said operating and non-operating positions, said pump housing and receiver bore being stepped to facilitate engagement and disengagement of said seal means during camming movement of said pump assembly between said operating and non-operating positions, and an additional single seal means providing sealing engagement between said pump assembly and receiver when said pump assembly is in said non-operating position.

In combination, a pump assembly and a receiver therefor, said pump assembly comprising a pump housing having an inner end and an outer end, pivotal handle means mounted on said outer end, and cam means on said handle means for pivotal movement therewith, and said receiver having a bore for receipt of said pump assembly, and lug means engageable by said cam means, said pump assembly being rotatable in opposite directions upon insertion of said pump assembly to a non-operating position extending part way into said receiver to engage an disengage said cam means from said lug means, and said handle means being pivotal between closed and open positions when said cam means is engaged with said lug means to cause a camming action of said cam means against said lug means to respectively push said pump assembly further into said receiver to an operating position and pull said pump assembly back out to said non-operating position, said receiver being internally mounted within a fluid storage tank, said receiver having a fluid inlet opening at the innermost end thereof open to the interior of said tank, and an access opening at the outermost end thereof accessible from the exterior of said tank for insertion of said pump assembly into said receiver and removal therefrom, said receiver and said pump assembly contained therein being inclined at an angle relative to the vertical to improve pump inlet fluid flow conditions and minimize the height of said pump assembly within said tank.

In combination, a pump assembly and a receiver therefor, said pump assembly comprising a pump housing having an inner end and an outer end, pivotal handle means mounted on said outer end, and cam means on said handle means for pivotal movement therewith, and said receiver having a bore for receipt of said pump assembly, and lug means engageable by said cam means, said pump assembly being rotatable in opposite directions upon insertion of said pump assembly to a non-operating position extending part way into said receiver to engage and disengage said cam means from said lug means, and said handle means being pivotal between closed and open position when said cam means is engaged with said lug means to cause a camming action of said cam means against said lug mean to respectively push said pump assembly further into said receiver to an operating position and pull said pump assembly back out to said non-operating position, said receiver being internally mounted within a fluid storage tank, said receiver having a fluid inlet opening at the innermost end thereof open to the interior of said tank, and an access opening at the outermost end thereof accessible from the exterior of said tank for insertion of said pump assembly into said receiver and removal therefrom, and a cover plate for said access opening, said handle means permitting attachment of said access plate to said tank when said pump assembly is in the operating position and said handle means is in the closed position, and said handle means interfering with such attachment when said handle means is in the open position.

In combination, a pump assembly and a receiver therefor, said pump assembly comprising a pump housing having an inner end and an outer end, pivotal handle means mounted on said outer end, and cam means on said handle means for pivotal movement therewith, and said receiver having a bore for receipt of said pump assembly, and lug means engageable by said cam means, said pump assembly being rotatable in opposite directions upon insertion of said pump assembly to a non-operating position extending part way into said receiver to engage and disengage said cam means from said lug means, and said handle means being pivotal between closed and open positions when said cam means is engaged with said lug means to cause a camming action of said cam means against said lug means to respectively push said pump assembly further into said receiver to an operating position and pull said pump assembly back out to said non-operating position, said receiver being internally mounted within a fluid storage tank, said receiver having a fluid inlet opening at the innermost end thereof open to the interior of said tank, and an access opening at the outermost end thereof accessible from the exterior of said tank for insertion of said pump assembly into said receiver and removal therefrom, and electrical connector means adapted to be connected to the outer end of said pump assembly to provide power to operate said pump assembly, said electrical connector means including means for trapping said handle means in the closed position.