Pump dispenser and spraying apparatus

A manually operable pump dispenser for mounting on a vessel wherein liquid contained in a cylinder section is compressed with a piston section through displacement of a trigger structure and is ejected through a nozzle orifice, said dispenser comprising:

• a base body for fixing on an orifice of a vessel;
• a cylinder section and a vent cylinder section formed adjacent one another on said base body;
• a trigger structure including a trigger section, a first valve casing section mounted on said base body, and a trigger guide section which oscillates within said vent cylinder section, said first valve casing section including an outer boss-shaped section and an inner boss-shaped section between which said cylinder section is disposed;
• a nozzle cover integrated with said first valve casing section by a hinge section, said nozzle cover defining a protrusion thereon which is disposed to close off a nozzle orifice defined in said first valve casing section;
• a virgin seal section integrated with said vent cylinder section and disposed to prevent actuation of said trigger structure;
• a second valve casing section and a packing integrated with one another and together defining a packing structure for fixing said base body on the vessel orifice;
• and
• an anti-falling section formed on said first valve casing section to prevent detachment of said trigger structure from said base body.

A manually operable pump dispenser for mounting on a vessel wherein liquid contained in a cylinder section is compressed with a piston section by displacement of a trigger structure and is ejected through a nozzle orifice, said dispenser comprising:

• a base body for fixing on an orifice of the vessel by a packing structure;
• a cylinder section and a vent cylinder section formed adjacent one another on said base body;
• and
• a trigger structure including a trigger section, a valve casing section mounted on said base body, and a trigger guide section disposed in said vent cylinder section, said valve casing section defining an outer boss section and an inner boss section between which said cylinder section is disposed, said inner and outer boss sections oscillating relative to said cylinder section and said trigger guide oscillating relative to said vent cylinder section during use of said dispenser.

A manually operable pump dispenser for mounting on a vessel wherein liquid contained in a cylinder section is compressed with a piston section by displacement of a trigger structure and is ejected through a nozzle orifice, said dispenser comprising:

• a base body for attachment to an orifice of the vessel by a packing structure;
• a cylinder section and a vent cylinder section formed adjacent one another on said base body;
• a trigger structure including a trigger section, a valve casing section mounted on said base body, and a trigger guide section which oscillates within said vent cylinder section;
• and
• a virgin seal section integrated with said vent cylinder section and disposed to prevent actuation of said trigger structure.

A manually operable pump dispenser for mounting on a vessel wherein liquid contained in a cylinder section is compressed with a piston section by displacement of a trigger structure and is ejected through a nozzle orifice, said dispenser comprising:

• a base body fixed on an orifice of the vessel by a packing structure;
• a cylinder section and a vent cylinder section formed adjacent one another on said base body;
• a trigger structure including a trigger section, a valve casing section mounted on said base body, and a trigger guide section which oscillates within said vent cylinder section, said valve casing section defining an outer boss section;
• and
• a trigger lock section integrated with said base body and connected thereto by a hinge, said trigger lock section being disposed in contacting engagement with a terminal end of said outer boss section of said valve casing section to prevent actuation of said trigger structure.

A manually operable pump dispenser for mounting on a vessel wherein liquid contained in a cylinder section is compressed with a piston section by displacement of a trigger structure and is ejected through a nozzle orifice, said dispenser comprising:

• a base body fixed on an orifice of the vessel by a packing structure;
• a cylinder section and a vent cylinder section formed adjacent one another on said base body;
• a trigger structure including a trigger section, a valve casing section mounted on said base body, and a trigger guide section which oscillates within said vent cylinder section;
• and
• a piston section disposed within said valve casing section, said piston section including a cylindrical body having a terminal end mounting a virgin seal thereon, and said cylinder section defines a receptacle section for receiving said cylindrical body and an outwardly projecting shaft disposed within said receptacle section for displacing said virgin seal.