Differential mounted single stage diaphragm operated pump

Claim 2

In a fluid compressor and drive assembly, rotatable drive means for driving said compressor, a housing for said rotatable drive means, said housing having an opening therethrough and having cylindrical wall means fixed to said housing extending from said opening, said compressor comprising a compressor casing having an enlarged annular head portion and having reduced diameter tubular extension mounted for sliding telescopic movement with respect to said cylindrical wall means, fastener means for releasably securing said tubular extension to said wall means of said housing, piston means mounted for reciprocal movement in said head portion and cooperating therewith to provide an expandable and contractable chamber therein, fluid supply means operatively connected to said chamber for supplying fluid thereto in response to the expansion of said chamber, fluid exhaust means operatively connected to said chamber for exhausting fluid therefrom in response to the contraction of said chamber, piston drive means for stroking said piston means in said head portion to expand and contract said chamber, said piston drive means extending longitudinally through said tubular extension of said compressor casing and said opening in said housing into engagement with said rotatable drive means, support means mounted in said tubular extension, said support means having a cylindrical head portion fitted into said tubular extension of said compressor casing adjacent to said piston means, said support means further having bearing sleeve means radially inwardly of said head portion for slidably supporting said piston drive means, elongated helical spring means operatively connected between said head portion and said piston drive means providing a force for moving said compressor casing linearly outwardly with respect to said housing so that said casing can be subsequently fixed at a predetermined station with respect to said housing by said fastener means and for maintaining said piston drive means in contact with said rotatable drive means.

Claim 3

In a fluid compressor and drive assembly, rotatable cam means for driving said compressor, a housing for said rotatable cam means, said housing having an opening therethrough and cylindrical flange means extending outwardly from said housing to provide a passage connected to said opening, said compressor comprising a casing having an annular head portion with a cavity therein and having a reduced diameter hollow tubular extension integral with said head portion leading outwardly from said cavity, means supporting said tubular extension for linear telescoping movement with respect to said cylindrical flange means, fastener means for releasably securing said tubular extension to said flange means of said housing, diaphragm means mounted for flexing movement in said cavity of said head portion and cooperating with said head portion to provide an expandable and contractable chamber therein, fluid supply means operatively connected to said chamber for supplying fluid thereto in response to the expansion of said chamber, fluid exhaust means operatively connected to said chamber for exhausting fluid therefrom in response to the expansion of Said chamber, fluid exhaust means operatively connected to said chamber for exhausting fluid therefrom in response to the contraction of said chamber, reciprocally movable drive means operatively connected to said diaphragm for flexing said diaphragm means in said head portion to expand and contract said chamber in response to rotation of said cam means, said drive means comprising rod means extending longitudinally through said tubular extension and said opening in said housing into engagement with said rotatable drive means, support means mounted in said tubular extension for supporting said rod means between the ends thereof, said support means comprising a head portion mounted in said tubular extension and integral bearing sleeve means for said rod means supported radially inwardly of said head portion, helical spring means disposed around said bearing sleeve means and operatively positioned between said head portion and one end of said rod means for moving said casing outwardly with respect to said housing so that said casing can be subsequently fixed at a predetermined station with respect to said housing by said fastener means and for maintaining said rod means in yieldable contact with said rotatable cam means so that said cam means can flex said diaphragm and pump fluid from said fluid chamber into said fluid exhaust means.

Claim 4

In a fluid compressor and drive assembly, rotatable cam means for driving said compressor, a housing for said rotatable cam means, said housing having an opening therethrough and cylindrical flange means extending outwardly from said housing to provide a passage connected to said opening, said compressor comprising a casing having an annular head portion with a cavity therein and having a reduced diameter hollow tubular extension integral with said head portion leading outwardly from said cavity, means supporting said tubular extension for linear telescoping movement with respect to said cylindrical flange means, fastener means for releasably securing said tubular extension to said flange means of said housing, diaphragm means mounted for flexing movement in said cavity of said head portion and cooperating with said head portion to provide an expandable and contractable chamber therein, fluid supply means operatively connected to said chamber for supplying fluid thereto in response to the expansion of said chamber, fluid exhaust means operatively connected to said chamber for exhausting fluid therefrom in response to the expansion of Said chamber, fluid exhaust means operatively connected to said chamber for exhausting fluid therefrom in response to the contraction of said chamber, reciprocally movable drive means operatively connected to said diaphragm for flexing said diaphragm means in said head portion to expand and contract said chamber in response to rotation of said cam means, said drive means comprising rod means extending longitudinally through said tubular extension and said opening in said housing into engagement with said rotatable drive means, support means mounted in said tubular extension for supporting said rod means between the ends thereof, said support means comprising a head portion mounted in said tubular extension and integral bearing sleeve means for said rod means supported radially inwardly of said head portion, helical spring means disposed around said bearing sleeve means and operatively positioned between said head portion and one end of said rod means for moving said casing outwardly with respect to said housing so that said casing can be subsequently fixed at a predetermined station with respect to said housing by said fastener means and for maintaining said rod means in yieldable contact with said rotatable cam means so that said cam means can flex said diaphragm and pump fluid from said fluid chamber into said fluid exhaust means.

Claim 5

A fluid compressor and drive assembly comprising rotatable cam means, a housing for said rotatable cam means, said housing having an opening therethrough and cylindrical flange means extending outwardly from said housing to provide a passage connected to said opening, said compressor comprising a casing having a head portion with a cavity therein and a hollow tubular extension leading outwardly from said cavity, support means mounting said tubular extension for longitudinal telescoping movement on said cylindrical flange means, fastener means for securing said tubular extension in adjusted position to said flange means of said housing, diaphragm means mounted for flexing movement in said head portion and cooperating therewith to provide an expandable and contractable chamber therein, fluid supply means operatively connected to said chamber for supplying fluid thereto in response to the expansion of said chamber, fluid exhaust means operatively connected to said chamber for exhausting fluid therefrom in response to the contraction of said chamber, reciprocally movable drive means operatively connected to said diaphragm for flexing said diaphragm means in said head portion to expand and contract said chamber in response to rotation of said cam means, said drive means comprising cylindrical push rod means extending longitudinally through said tubular extension and said opening in said housing into engagement with said rotatable drive means, support means mounted in said tubular extension for supporting said rod means, said support means comprising a head portion mounted in said tubular extension and cylindrical bearing sleeve means supported radially inwardly of said head portion, said sleeve means extending axially beyond said head portion and having an axial opening extending therethrough, said push rod extending through said axial opening and having a major portion of its length supported by said sleeve means, helical spring means operatively disposed around said bearing sleeve means, means operatively mounting said spring means between one end of said head portion and one end of said rod means for moving said support means and said casing outwardly with respect to said housing so that said casing can be subsequently fixed at a predetermined station with respect to said housing by said fastener means and for maintaining said push rod means in yieldable contact with said rotatable cam means so that said cam means can axially move said push rod and flex said diaphragm and pump fluid from said fluid chamber into said fluid exhaust means.

Claim 6

A fluid compressor and drive assembly comprising rotatable cam means, a housing for said rotatable cam means, said housing having an opening therethrough and cylindrical flange means extending outwardly from said housing to provide a passage connected to said opening, said compressor comprising a casing having a head portion with a cavity therein and a hollow tubular extension leading outwardly from said cavity, support means mounting said tubular extension for longitudinal telescoping movement on said cylindrical flange means, fastener means for securing said tubular extension in adjusted position to said flange means of said housing, diaphragm means mounted for flexing movement in said head portion and cooperating therewith to provide an expandable and contractable chamber therein, fluid supply means operatively connected to said chamber for supplying fluid thereto in response to the expansion of said chamber, fluid exhaust means operatively connected to said chamber for exhausting fluid therefrom in response to the contraction of said chamber, reciprocally movable drive means operatively connected to said diaphragm for flexing said diaphragm means in said head portion to expand and contract said chamber in response to rotation of said cam means, said drive means comprising cylindrical push rod means extending longitudinally through said tubular extension and said opening in said housing into engagement with said rotatable drive means, support means mounted in said tubular extension for supporting said rod means, said support means comprising a head portion mounted in said tubular extension and cylindrical bearing sleeve means supported radially inwardly of said head portion, said sleeve means extending axially beyond said head portion and having an axial opening extending therethrough, said push rod extending through said axial opening and having a major portion of its length supported by said sleeve means, helical spring means operatively disposed around said bearing sleeve means, means operatively mounting said spring means between one end of said head portion and one end of said rod means for moving said support means and said casing outwardly with respect to said housing so that said casing can be subsequently fixed at a predetermined station with respect to said housing by said fastener means and for maintaining said push rod means in yieldable contact with said rotatable cam means so that said cam means can axially move said push rod and flex said diaphragm and pump fluid from said fluid chamber into said fluid exhaust means.

Claim 7

In a fluid compressor and drive assembly, a rotatable input, rotatable cam means operatively connected to saId input for driving said compressor, a housing for said rotatable cam means, said housing having a cylindrical extension fixed thereto with a passage therethrough leading into the interior of said housing, said compressor comprising a casing having a head portion and a tubular body portion, support means for mounting said tubular body portion for linear telescoping movement into and out of said cylindrical extension, fastener means for securing said tubular body in an adjusted position in said extension of said housing, piston means mounted for reciprocal movement in said head portion and cooperating therewith to provide an expandable and contractable chamber therein, fluid supply means operatively connected to said chamber for supplying fluid thereto in response to the expansion of said chamber, fluid exhaust means operatively connected to said chamber for exhausting fluid therefrom in response to the contraction of said chamber, push rod means for stroking said piston means in said head portion to expand and contract said chamber, said push rod means extending longitudinally through said extension into engagement with said rotatable cam means, support means mounting said push rod means for limited axial movement in said tubular body portion, said support means comprising a head portion fitted within said cylindrical extension and a concentric bearing sleeve for said push rod means, helical spring means in said body portion and operatively mounted between said head portion and said push rod means for moving said casing outwardly with respect to said cylindrical extension so that said casing can be subsequently fixed at a predetermined station with respect to said housing by said fastener means and for maintaining said push rod means in contact with said rotatable cam means so that said cam means can stroke said piston means outwardly to contract said chamber on predetermined rotational movement of said cam means and so that said spring means can stroke said piston means inwardly in response to further predetermined rotational movement of said cam means.

Claim 8

In a fluid compressor and drive assembly, a rotatable input, rotatable cam means operatively connected to saId input for driving said compressor, a housing for said rotatable cam means, said housing having a cylindrical extension fixed thereto with a passage therethrough leading into the interior of said housing, said compressor comprising a casing having a head portion and a tubular body portion, support means for mounting said tubular body portion for linear telescoping movement into and out of said cylindrical extension, fastener means for securing said tubular body in an adjusted position in said extension of said housing, piston means mounted for reciprocal movement in said head portion and cooperating therewith to provide an expandable and contractable chamber therein, fluid supply means operatively connected to said chamber for supplying fluid thereto in response to the expansion of said chamber, fluid exhaust means operatively connected to said chamber for exhausting fluid therefrom in response to the contraction of said chamber, push rod means for stroking said piston means in said head portion to expand and contract said chamber, said push rod means extending longitudinally through said extension into engagement with said rotatable cam means, support means mounting said push rod means for limited axial movement in said tubular body portion, said support means comprising a head portion fitted within said cylindrical extension and a concentric bearing sleeve for said push rod means, helical spring means in said body portion and operatively mounted between said head portion and said push rod means for moving said casing outwardly with respect to said cylindrical extension so that said casing can be subsequently fixed at a predetermined station with respect to said housing by said fastener means and for maintaining said push rod means in contact with said rotatable cam means so that said cam means can stroke said piston means outwardly to contract said chamber on predetermined rotational movement of said cam means and so that said spring means can stroke said piston means inwardly in response to further predetermined rotational movement of said cam means.