EP 4307971 A1 20240124 - ALL PLASTIC HAND PUMP WITH A PISTON HAVING AN INTEGRATED CHECK VALVE
Title (en)
ALL PLASTIC HAND PUMP WITH A PISTON HAVING AN INTEGRATED CHECK VALVE
Title (de)
KUNSTSTOFF-HANDPUMPE MIT KOLBEN MIT INTEGRIERTEM RÜCKSCHLAGVENTIL
Title (fr)
POMPE À MAIN ENTIÈREMENT EN PLASTIQUE AVEC PISTON ÉQUIPÉ D'UN CLAPET ANTIRETOUR INTÉGRÉ
Publication
Application
Priority
- US 202163175651 P 20210416
- US 202117377086 A 20210715
- US 2021042058 W 20210716
Abstract (en)
[origin: CN217477970U] A manually operated dispensing pump for dispensing fluid from a container is provided that is made entirely of a plastic component. The manual pump includes an actuator, a cover, a housing having a lower check valve, and a piston having an integrated upper check valve suspended in the form of an inverted cone within a cylinder. A resilient dome-shaped plastic return spring is used to return the actuator to its rest position after actuation. And the used pump can be recycled without being disassembled.
IPC 8 full level
A47K 5/12 (2006.01); B05B 11/00 (2023.01)
CPC (source: EP)
B05B 11/0044 (2018.07); B05B 11/007 (2013.01); B05B 11/1074 (2023.01); B05B 11/1077 (2023.01); B05B 11/1047 (2023.01); B05B 11/1052 (2023.01); B05B 11/1061 (2023.01); B05B 11/1067 (2023.01); Y02W 30/62 (2015.05)
Citation (search report)
See references of WO 2022220856A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
CA 3216212 A1 20221020; CN 217477970 U 20220923; EP 4307971 A1 20240124
DOCDB simple family (application)
CA 3216212 A 20210716; CN 202190000106 U 20210716; EP 21936258 A 20210716