Rieke Packaging Systems Limited

Rieke Corporation

Gaurang Mittal

Simon Christopher Knight

Ashish Singh

Pratham Pal

Prantik Chanda

A dispenser pump has a plunger operable in a body including an outer cylinder body having a vent opening in its sidewall and a body insert fitting into the top of the outer body and providing an external collar through which the plunger stem operates. The body insert has lock-down threads to lock down the plunger for shipping. The insert also has formations for blocking or unblocking the vent opening by rotation between the outer body and body insert, driven by rotation of the plunger head which makes a catch engagement with the top of the body insert. This plunger head rotation is the locking or unlocking action for the plunger lock-down. Blocking the vent during shipping reduces leakage.

Dispenser pumps and dispensers

A dispensing pump capable of withstanding the rigors of 'e-commerce' shipping conditions is described. The pump dispenser is integrated with the container's closure. The pump includes a lock-down mechanism to prevent the pump actuator from extending during shipment, while a vented chaplet and an optional beaded seal proximate to the dip tube connection ensure that fluid cannot leak out of the container or the pump.

Down-locked pump with chaplet vent and beaded seal

A dispenser pump has a plunger operable in a body including an outer cylinder body having a vent opening in its sidewall and a body insert fitting into the top of the body cylinder and providing an external collar through which the plunger stem operates. The body insert has a lock-down thread to lock down the plunger for shipping. The insert also has an undulating annular vent-control bead extending right round its cylindrical outer surface, engaging the cylinder wall with interference for either blocking or unblocking the vent opening, according to whether the vent-control bead lies above or below the interior vent opening, by rotation between the body cylinder and body insert. The rotation can be driven by rotation of the plunger head, which makes a catch engagement with the top of the body insert. Blocking the vent during shipping reduces leakage.

Pump dispensers

A trigger sprayer is made from a single grade of polymer capable of being reused as post consumer resin. The design allows for upright and inverted actuation. A pre-compression diaphragm ensures that dispensing stroke delivers a complete and uniform amount of fluid.

Recyclable, pre-compression dispenser with trigger sprayer

A dispenser pump has a plunger () operable in a body including an outer cylinder body () having a vent opening () in its sidewall and a body insert () fitting into the top of the outer body and providing an external collar through which the plunger stem operates. The body insert () has lock-down threads () to lock down the plunger for shipping. The insert () also has formations for blocking or unblocking the vent opening () by rotation between the outer body () and body insert (), driven by rotation of the plunger head () which makes a catch engagement with the top of the body insert (). This plunger head rotation is the locking or unlocking action for the plunger lock-down. Blocking the vent during shipping reduces leakage.

Growing community of inventors

Uttar Pradesh, India

Gaurang Mittal