Plural component system

An apparatus for supplying plural components to a device for applying said plural components to a work surface, comprising,

• at least a pair of component reservoirs,
• at least two component pumping chambers of like pumping capacity and releasably connected between said component reservoir and a device for applying plural components to a work surface so that both of said component pumping chambers can be connected between a common reservoir and said device or between said device and a reservoir individual to each of said component pumping chambers.
• at least one catalyst reservoir,
• at least one catalyst pumping means operatively and releasably connected between said catalyst reservoir and said device for applying plural components,
• means for controlling the ratio of the amount of catalyst, pumped from said catalyst reservoir to said device, to the amount of components pumped from said component reservoir to said device by said pumping chambers of like capacity,
• each of said component pumping chambers having a pair of opposed, spaced-apart, substantially flexible bladders disposed therein,
• said bladders dividing each of said component pumping chambers into a component passageway therebetween and an operating fluid chamber therebeyond,
• reciprocating means for increasing the amount of operating fluid in one of said operating fluid chambers while substantially simultaneously decreasing the amount of operating fluid in the other of said operating fluid chambers on a sequentially continuous, alternating basis so that one pair of opposed bladders responds to an increased amount of operating fluid surrounding said bladders by being convergingly displaced relative to each other while the other pair of said bladders are divergingly displaced relative to each other, responsive to the decrease in the amount of surrounding operating fluid,
• said reciprocating means further operatively connected to said catalyst pumping means so that the reciprocating motion of said reciprocating means operates said catalyst pumping means,
• whereby said apparatus has the flexibility to provide at least three different ingredients to said plural component device, wherein two of said components are provided to said device in substantially equal amounts, and wherein a third catalyst ingredient is provided to said device at a predetermined ratio relative to said first two components, and,
• whereby disconnecting said catalyst reservoir from said plural component device provides an apparatus for delivering two different components to said plural component device in substantially equal quantities in the absence of said catalyst, and disconnecting one of said component reservoirs from said apparatus provides an apparatus for delivering a single component through both of said component pumping chambers to said plural component device and,
• whereby the segregation of said component pumping chambers and said operating fluid chambers and the provision of multiple reservoirs obviates the need to clean said component pumping chambers when changing from the application of a singular component to the application of plural components.