Patent · US Active

Backpack sprayer

US11458494B2 · kind B2 · utility

1Cited by

1References

10Claims

0Family size

Assignee

INTRADIN (SHANGHAI) MACHINERY CO., LTD. · CN

Inventors

Gaofeng Wang · San Jose, US
Chenliang Yuan · Huzhou City, CN

Key dates

Filing date	Aug 13, 2021
Grant date	Oct 4, 2022
Priority date	—
Expiry date	Aug 13, 2041

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB05B15/652
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A backpack sprayer includes a housing, a spray nozzle assembly, a fan assembly and a switch assembly. The housing is configured to contain a liquid. The spray nozzle assembly is communicated with the housing, and is configured to spray the liquid out from the housing. The fan assembly is connected to the spray nozzle assembly, and is configured to provide the spray nozzle assembly with power to spray the liquid out from the housing. The switch assembly is connected to the spray nozzle assembly and electrically connected to the fan assembly, and is configured to control opening and closing of the spray nozzle assembly and start and shutdown of the fan assembly simultaneously.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.