| 摘要 |
This invention provides a spray canister comprising an outer housing an an inner housing, each housing having a concave base, the base of said inner housing being adapted to mate with the base of said outer housing, said outer housing having first and second oppositely disposed openings, said first opening being adapted to receive said inner housing, said outer housing having a top portion fitted with spring means and sealing means, and having inlet means for applying air pressure to said inner housing and means adapted for operative connection with a spraying head for dispensing material from said inner housing, said inner housing being adapted to contain material to be sprayed and having a top portion adapted to sealingly contact the sealing means of said outer housing when said inner housing is inserted in said outer housing.
|
