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Robert B. Hahn
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Virginia Beach, VA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Stake for tube bundle
Patent number
6,401,803
Issue date
Jun 11, 2002
The Atlantic Group, Inc.
Robert B. Hahn
F28 - HEAT EXCHANGE IN GENERAL
Information
Patent Grant
Adjustable tube-cleaner device
Patent number
5,966,768
Issue date
Oct 19, 1999
The Atlantic Group, Inc.
Robert B. Hahn
B08 - CLEANING
Information
Patent Grant
Expansion-joint system and belt
Patent number
5,961,244
Issue date
Oct 5, 1999
The Atlantic Group, Inc.
Robert B. Hahn
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Expandable belt type expansion joint
Patent number
5,716,158
Issue date
Feb 10, 1998
The Atlantic Group, Inc.
Robert B. Hahn
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Apparatus for dismantling potentially contaminated tubes from a tub...
Patent number
5,293,682
Issue date
Mar 15, 1994
The Atlantic Group, Inc.
Robert B. Hahn
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Method for dismantling potentially contaminated tubes from a tube b...
Patent number
5,276,965
Issue date
Jan 11, 1994
The Atlantic Group, Inc.
Robert B. Hahn
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Method and apparatus for improved belt type expansion joints
Patent number
5,228,255
Issue date
Jul 20, 1993
The Atlantic Group, Inc.
Robert B. Hahn
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Method and apparatus for multiple locking a single row of heat exch...
Patent number
5,213,155
Issue date
May 25, 1993
The Atlantic Group, Inc.
Robert B. Hahn
F28 - HEAT EXCHANGE IN GENERAL
Information
Patent Grant
Multiple locking stake for tube bundle
Patent number
4,919,199
Issue date
Apr 24, 1990
The Atlantic Group, Inc.
Robert B. Hahn
F28 - HEAT EXCHANGE IN GENERAL
Patents Applications
last 30 patents
Information
Patent Application
STAKE FOR TUBE BUNDLE
Publication number
20020070004
Publication date
Jun 13, 2002
Robert B. Hahn
F28 - HEAT EXCHANGE IN GENERAL