BIODEGRADABLE BALL SEALERS USED

Brand	Owner	Address	Description
CARBOBALL	CARBO Ceramics, Inc.	575 North Dairy Ashford Road, Suite 300 Houston TX 77079	biodegradable ball sealers used for diversion purposes in oil and gas operations;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

A machine (1) for making filter bags (4) of tetrahedral shape for infusion products comprises a revolving conveyor drum (15) driven by a first drive shaft (16) to feed a web (5) of filter paper along a path (P) on which there are positioned: a station (25) for feeding the filter paper web (5); a station (21) for feeding a succession of tags (6); a station (22) for feeding tie string (7) connecting the filter bags (4) to the respective tags (6); a station (23) for arranging the tie string (7) according to a defined pattern on the path (P); and a plurality of sealers (24) facing the path (P) to attach the tie string (7) and the tags (6) to the filter paper web (5). The sealers (24) perform a defined movement between a sealing position and a waiting position, and this movement, which is performed simultaneously and synchronously by all the sealers (24), is imparted, through a transmission element (39) shared by all the sealers (24), by a second cam drive shaft (36) connected to the same source of motion (18) to which the first shaft (16) that drives the conveyor drum (15) is connected.