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| Number | Title | Issue Date |
| 6065469 | Emission control system for asphalt kettle An emission control system for an asphalt kettle combines a number of features to increase efficiency and convenience of operation, while minimizing potential safety hazards. The asphalt kettle is connected via a duct to a separate afterburner device equi... | 05/23/2000 |
| 5601113 | Hot valve for submerged pump system An improved hot valve system for use in a hot melting kettle of the type used for substances such as asphalt includes a surge chamber having a first outlet in fluid communication with a vertical discharge pipe, and a second outlet open to the interior of ... | 02/11/1997 |
| 4367857 | Adjustable hot pipe bracket A roof parapet mounting bracket is provided with a pivotally mounted clamp for connection to hot tar pipes. It is also provided with a roller guide for a tar valve control rope.... | 01/11/1983 |
