Inventor

NIESCHWITZ DARRELL V

US22 patents

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

NIESCHWITZ DARRELL V

H P PRODUCTS INC

Vacuum canister and mounting bracket for use therewith

Vacuum hose storage system

Vacuum canister with auxiliary intake valve

Central vacuum system and inlet valves therefor

Central vacuum system and inlet valves therefor

Hose valve assembly for vacuum cleaning device

Vacuum inlet valve assembly with sliding pins

Central vacuum system and inlet valves therefor

Vacuum inlet valve assembly with sliding pins

Vacuum inlet valve assembly

Central vacuum system and inlet valves therefor

Central vacuum system and inlet valves therefor

Central vacuum system and inlet valves therefor

Acoustic foam sound reducer for vacuum power unit

Acoustic foam sound reducer for vacuum power unit

Central vacuum system and inlet valves therefor

Adapter for a vacuum hose

Vacuum hose having an integrated switch

Vacuum inlet valve assembly with a closeable seal

COLTRIN CENTRAL VACUUM SYSTEMS INC

Central vacuum cleaning system

Central vacuum cleaning system

H-P PRODUCTS INC

Vacuum tube locking collar