Inventor
GARDNER RICHARD K
US13 patents
⚠️ This page may combine multiple inventors who share the name “GARDNER RICHARD K”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
INGERSOLL RAND CO
8 patentsUS5731556AMar 24, 1998
Muffler for pneumatic device
INGERSOLL RAND CO29 citations90
USD380217SJun 24, 1997
Pneumatic motor
INGERSOLL RAND CO27 citations89
US5647737AJul 15, 1997
Reciprocating pump with simplified seal replacement
INGERSOLL RAND CO25 citations88
US5551847ASep 3, 1996
Lost motion pilot valve for diaphragm pump
INGERSOLL RAND CO27 citations86
US5586480ADec 24, 1996
Pneumatic motor
INGERSOLL RAND CO16 citations73
US5951259ASep 14, 1999
Reciprocating pump with improved primer element and method
INGERSOLL RAND CO11 citations69
US6571680B2Jun 3, 2003
Pneumatic shift reciprocating pneumatic motor
INGERSOLL RAND CO6 citations62
US5573146ANov 12, 1996
Adjustable pneumatic lift device for dual flow valve
INGERSOLL RAND CO3 citations62
ARO CORP
5 patentsUS5527160AJun 18, 1996
Mechanical shift, pneumatic assist pilot valve
ARO CORP56 citations95
US4936753AJun 26, 1990
Diaphragm pump with interchangeable valves and manifolds
ARO CORP63 citations95
US4854832AAug 8, 1989
Mechanical shift, pneumatic assist pilot valve for diaphragm pump
ARO CORP97 citations91
US5334003AAug 2, 1994
Air valving mechanism, in combination with a double diaphragm pump subassembly
ARO CORP21 citations90
US4895494AJan 23, 1990
Interchangeable manifolds for diaphragm pumps
ARO CORP17 citations73