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Merle Eiffert
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Gillett, PA, US
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Patents Grants
last 30 patents
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Patent Grant
Explosion relief valve with annular flame arrestor
Patent number
11,879,382
Issue date
Jan 23, 2024
Penn-Troy Manufacturing Inc.
Michael Kafka
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Explosion relief valve with annular flame arrestor
Patent number
11,466,616
Issue date
Oct 11, 2022
Penn-Troy Manufacturing Inc.
Michael Kafka
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Explosion relief valve with annular flame arrestor
Patent number
10,151,239
Issue date
Dec 11, 2018
Penn-Troy Manufacturing Inc.
Michael Kafka
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Patents Applications
last 30 patents
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Patent Application
Sealing and Locking Valve Box Lid
Publication number
20230146258
Publication date
May 11, 2023
Penn-Troy Manufacturing Inc.
Michael Kafka
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Application
EXPLOSION RELIEF VALVE WITH ANNULAR FLAME ARRESTOR
Publication number
20230018625
Publication date
Jan 19, 2023
Penn-Troy Manufacturing Inc.
Michael Kafka
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
EXPLOSION RELIEF VALVE WITH ANNULAR FLAME ARRESTOR
Publication number
20210372321
Publication date
Dec 2, 2021
Penn-Troy Manufacturing Inc.
Michael Kafka
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES