Spray gun construction

US4160525A · kind A · utility

Assignee

• Firma Josef Wagner GmbH · DE

Inventor

• Josef Wagner · Augsburg, DE

Key dates

• Filing date: Nov 21, 1977
• Grant date: Jul 10, 1979
• Expiry date: Nov 21, 1997

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B05B9/0861
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A spray gun construction, comprises a housing part which is interconnected with a container part at its front end and a handle part at its rear end which has an actuating button. The housing part has a suction bore and a return bore located in fixed spaced apart relationship and a spray nozzle and surge chamber member which has a suction line connection which extends into the spray bore and a return line connection which extends into the return bore which alone or in combination with other pin and peg arrangements permit interconnection and alignment of the nozzle with the associated surge chamber on the housing in connection with a container or reservoir member containing the liquid to be sprayed. In addition, a U-shaped bridge member is pin- or peg-connected into the first housing to the rear of the spray nozzle and surge chamber member and it carries an electromagnetic pump which includes a coil portion mounted on the bridge member with an armature which is pivoted on the coil portion and actuates a piston member which is mounted for sliding movement on the bridge member so that the piston thereof moves backwardly and forwardly in the surge chamber.