Conduit cleaning apparatus
Patent 3983593 Issued on October 5, 1976. Estimated Expiration Date: 
October 5, 1993. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
October 5, 1993. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3083391 3703015 InventorApplicationNo. 05/614412 filed on 09/18/1975US Classes:15/104.33, Snake226/147, With retrograde movement preventer254/134.3FTConduit snakesExaminersPrimary: Roberts, Edward L.Attorney, Agent or FirmInternational ClassE03F 9/00 (20060101)AbstractConduit cleaning apparatus characterized by a reel of cable and a pair of rachet gripping members for feeding the cable through. A rearward gripping member is mounted stationary with respect to the reel. A forward gripping member is carried forwardly thereof by telescoping guide structure that aligns the gripping members along the axis of rotation of the reel and allows reciprocal motion between the gripping members. The rachet gripping members advance or retract the cable. A spring urges the members apart to facilitate reciprocation while in a vertical position.Field of SearchScraper, cutter, wiper or brush | |
