Brushing – scrubbing – and general cleaning – Implements – Pipe – tube – or conduit cleaner
Patent
1998-05-29
1999-10-19
Till, Terrence R.
Brushing, scrubbing, and general cleaning
Implements
Pipe, tube, or conduit cleaner
1510416, B08B 900, B08B 902, B08B 9087
Patent
active
059667672
ABSTRACT:
A pipe cleaning device has a handle, a center rod, a center rod sealing plate, and a scraper assembly. The center rod has a central hollow space having one end connected to the handle and the scraper assembly mounted on the other end. The center rod sealing plate is a three-plate structure for sealing off the pipe opening. The center rod sealing plate has a central hole for the insertion of the center rod. The three-plate structure of the center rod sealing plate serves to increase the ease of disassembling and maintenance. The scraper assembly includes an upper scraper and a lower scraper, wherein the lower scraper has additional scraping knives on its blades to facilitate the scraping of blocking material inside the pipe. Moreover, the scrapers do not block off gas flow inside the pipe completely, so the pump can still pump exhaust gases out even when the scraper assembly is in use. The center rod also has a water inlet located next to the handle and a water outlet between the upper scraper and the lower scraper. Therefore, solvent or water can be pumped to assist the cleaning action.
REFERENCES:
patent: 49327 (1865-08-01), Werner, Jr.
patent: 599840 (1898-03-01), Holden
patent: 986844 (1911-03-01), McCloskey
patent: 2026680 (1936-01-01), Jacobsen
patent: 2148754 (1939-02-01), Jacobsen
patent: 4271556 (1981-06-01), Farrell, Jr.
patent: 4795495 (1989-01-01), Dobson, Sr.
Chou Chih-Horng
Jeng Andy
Lu Chung-Chien
Tseng Tien-Fu
McNeil Jennifer C.
Till Terrence R.
United Microelectronics Corp.
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