公开(公告)号：US3708124A

公开(公告)日：1973-01-02

申请号：US3708124D

申请日：1968-06-07

申请人： KELLERT P

发明人： KELLERT P

IPC分类号： E04F21/12 ,  B05B7/08

CPC分类号： E04F21/12

摘要： A spray gun for cement or the like material which has counternal moving parts, which is composed essentially of elements which are threadedly connected together and which may be readily threadedly disassembled for cleaning purposes. The gun comprises a Tee section with a plug and a pipe section connected with the aligned holes, respectively, of the Tee section, a plug of smaller diameter threadedly received in a central bore in the larger plug, an elongated tube threadedly connected to the interior of the smaller plug and extending axially through the Tee and through the larger pipe section, a nozzle connecting to the end of the tube by means of a female adapter, a threaded cap connected on the outer end of the pipe section adjacent the nozzle, aligned holes in the nozzle and the cap, a tapered recess on the inside of the threaded cap and a complementary tapered tip on the nozzle, a cement supply pipe connected to the third opening in the Tee section, means supplying cement under pressure to the cement supply pipe and a conduit with associated control valve supplying air under controllable pressure to the small plug.