Tobin Spann Conserve sprayer Project-Conserve water sprayer
Tobin Spann Conserve sprayer Project-Conserve water sprayer concept
Tobin Spann Conserve sprayer Project-Concept sketches
Tobin Spann Conserve sprayer Project-Rough prototype & Mechanism design
Tobin Spann Conserve sprayer Project-Engineering, CAD & prototyping
Tobin Spann Conserve sprayer Project-Functional description