Inventor

BERFIELD ROBERT C

US145 patents

⚠️ This page may combine multiple inventors who share the name “BERFIELD ROBERT C”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

BERFIELD ROBERT C

SHOP VAC CORP

Vacuum cleaner filter assembly

Switch assembly having an enlarged actuation surface

Filter retainer for a vacuum cleaner

Combined wet and dry vacuum cleaner

Filter and installation means for dry material filter for electric vacuum cleaner

Portable electric blower

Portable electric blower

Resilient detented lid latch

Noise reducing means for vacuum cleaner

Buckle or latch for holding lid to container

Noise reducing blower motor housing means for vacuum cleaner, or the like

Swivel coupling for a hose

Vacuum cleaner hose clip

Pump having sealless shaft

User-carried vacuum cleaner

Outlet priming self-evacuation vacuum cleaner

Vacuum cleaner collection bag

User-carried vacuum cleaner

Self-evacuating vacuum cleaner

Self-evacuating vacuum cleaner

Dolly

Vacuum apparatus having a pump for discharging liquid therefrom

Cleaning fluid tank assembly

Apparatus for converting a vacuum cleaning device into a liquid dispensing and suctioning system

Auxiliary chemical intake system

Pressure washer bypass valve

Multiple spray pattern nozzle assembly

Valve with backflow preventer

Tool caddy for attachment to container, particularly for a vacuum cleaner tank

Chemical intake system

Pressure washer

Tank for a pressure washer

Static electric discharge for dust collector

Housing arrangement for a fluid pump and tank

Drip cleaner attachment with solid cleaning concentrate

Dolly frame

Housing assembly for motor/fan means of a wet/dry vacuum cleaner

Dolly with tank latch

Dolly bumper

Tank for electric vacuum cleaner

Compact vacuum cleaner

Hose end holder

Vibration isolating means

Shoe attachment for wet/dry electric vacuum cleaner

Vacuum cleaner with muffled detachable blower exhaust

Vacuum cleaner

Self-evacuating vacuum cleaner

(unassigned)

Rotary flail feeding device and method

Rotary flail feeding device

BERFIELD ROBERT C

Rotary flail feeding device