US 11,952,257 B2
High volume reciprocating dispenser for viscous and other foodstuffs
Simon Christopher Knight, Bridgend (GB)
Assigned to RIEKE PACKAGING SYSTEMS LIMITED, (GB)
Appl. No. 17/909,122
Filed by RIEKE PACKAGING SYSTEMS LIMITED, Leicester (GB)
PCT Filed Mar. 3, 2021, PCT No. PCT/EP2021/055403
§ 371(c)(1), (2) Date Sep. 2, 2022,
PCT Pub. No. WO2021/175962, PCT Pub. Date Sep. 10, 2021.
Claims priority of provisional application 62/984,487, filed on Mar. 3, 2020.
Prior Publication US 2023/0102857 A1, Mar. 30, 2023
Int. Cl. B67D 1/10 (2006.01); B67D 1/12 (2006.01); B67D 1/08 (2006.01)
CPC B67D 1/102 (2013.01) [B67D 1/1256 (2013.01); B67D 1/1281 (2013.01); B67D 2001/0827 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A fixed nozzle dispenser pump having a modular construction for disassembly and cleaning, the dispenser pump comprising:
a pump body element having a lower inlet end with lower engagement features, a dispensing nozzle extending at an angle away from a pump chamber extension defining an inner volume to receive fluid through the lower inlet, and a skirt: i) formed integrally with the pump body, ii) coaxially extending around a portion of the pump chamber extension at a defined gap, and iii) having one or more outer facing keying projections;
an actuator cap comprising a hollow tube sealed at a top end by a top panel and having engagement features disposed at a lower end;
a piston element configured to fit coaxially around the pump body extension, the piston element detachably coupled to the engagement features of the actuator cap so that the piston element and the actuator cap move axially in concert around an outer facing of a portion of the pump chamber extension;
a sealing ring detachably coupled to a top edge of the pump chamber extension and configured to sealingly engaging an inner surface of the hollow tube;
a unitary nozzle adapter including an outlet valve detachably coupled to a distal edge of the dispenser nozzle;
a base detachably coupled to the lower engagement features of the body element;
an inlet element interposed between the pump body element and the based unit element, the inlet element including an inlet valve;
a shroud comprising a resilient sleeve coaxially enclosing the pump chamber extension, the skirt, and the piston element, the shroud having one or more attachment apertures so that one or more keying projections disposed on an outer facing of the skirt are: i) detachably held within the attachment apertures when the sleeve is assembled to the pump body, and ii) released when the sleeve is deformed by compressive force; and
wherein the sealing ring prevents the piston element from coming into contact with the fluid in the inner volume.