Aspiration-type sprayer with improved safety feature

Details Aspiration-type sprayer with improved safety feature Aspiration-type sprayer with improved safety feature

B - Operations, Transporting

05

B

222/36

B05B 7/28 (2006.01) B05B 7/24 (2006.01)

Patent

CA 1295299

HO CHOW and JOSEPH E. TESTA ASPIRATION-TYPE SPRAYER WITH IMPROVED SAFETY FEATURE ABSTRACT OF THE DISCLOSURE In an aspiration sprayer comprising a head permanently attached to the container in which the additive material is received and rotatable between operative positions one of which seals the interior of the container and the other of which unseals said interior and enables aspiration to occur, the container is provided with a plurality of recesses facing the head and the head is provided with a positioning and locking part resiliently urged toward those recesses, location of the part in a recess positioning the head in an operative position, at least that one of the recesses corresponding to the sealing position of the head and the locking part being so cooperatively shaped as to prevent rotation of the head until the part is manually removed from the recess, another of the recesses preferably being cooperatively shaped with respect to the part so that the head can be rotated relative to the container upon the application thereto of an appreciable rotational force without having to manually remove the part from the recess.

590549

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