US 12,376,710 B2
Dose adjustable dispensing system and methods of using and assembling the same
Eelco De Man, Vlijmen (NL); and Eric Rossignol, Chalon sur Saone (FR)
Assigned to SILGAN DISPENSING SYSTEMS CORPORATION, Richmond, VA (US)
Filed by SILGAN DISPENSING SYSTEMS CORPORATION, Richmond, VA (US)
Filed on Feb. 10, 2023, as Appl. No. 18/108,052.
Prior Publication US 2024/0268608 A1, Aug. 15, 2024
Int. Cl. A47K 5/12 (2006.01); B05B 11/10 (2023.01)
CPC A47K 5/1205 (2013.01) [B05B 11/1001 (2023.01)] 17 Claims
OG exemplary drawing
 
1. A pump engine, comprising:
an accumulator;
an accumulator inlet valve seated in the accumulator;
a lower cone attached to the accumulator, comprising:
a second spring cone; and
nine lower cone channels, wherein three channels have a first length, three channels have as second length, and three channels have a third length;
a piston stem extending into a portion of the lower cone, comprising:
a first spring cone; and
at least one stem flange seated in at least one lower cone channel;
a piston stop connected to the piston stem;
a piston connected to the piston stop; and
a spring seated between the first spring cone and the second spring cone.