Dart for cleaning tubes
Latest National Heat Exchange Cleaning Corporation Patents:
Description
The broken line shown in the drawings are included for the purpose of illustrating portions of the dart that form no part of the claimed design.
Claims
The ornamental design for a dart for cleaning tubes, as shown and described.
Referenced Cited
U.S. Patent Documents
Other references
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- Industrial Tube Cleaning, Inc. Tube Cleaners, Products, Cleaners; http://www.itcleaning.com/cleaners.html.
- Luxx Ultra-Tech, Inc. Spongeballs; http://www.spongeballs.com/.
- Luxx Ultra-Tech, Inc. Songeball Types; http://www.spongeballs.com/types.php.
Patent History
Patent number: D807596
Type: Grant
Filed: Oct 30, 2014
Date of Patent: Jan 9, 2018
Assignee: National Heat Exchange Cleaning Corporation (Youngstown, OH)
Inventors: Brian D. Antal (Fombell, PA), Carroll E. Joseph (Leetonia, OH)
Primary Examiner: Michael A. Pratt
Assistant Examiner: Michelle E Wilson
Application Number: 29/507,754
Type: Grant
Filed: Oct 30, 2014
Date of Patent: Jan 9, 2018
Assignee: National Heat Exchange Cleaning Corporation (Youngstown, OH)
Inventors: Brian D. Antal (Fombell, PA), Carroll E. Joseph (Leetonia, OH)
Primary Examiner: Michael A. Pratt
Assistant Examiner: Michelle E Wilson
Application Number: 29/507,754
Classifications
Current U.S. Class:
Sewer Or Pipe Cleaner (D32/14)