Patent ID: 8147580

Claim:
A lid-opening apparatus for a dust collector including a container, a lid sealable with the container, and a conduit in fluid communication with the container through the lid, the lid-opening apparatus comprising: a base adapted to be installed on the lid; a controller installed on the base; at least one cord including a first end adapted to be connected with the conduit and a second end connected with the controller; and a limiting member adapted to be installed on the lid, wherein the limiting member abuts with and is located between the first end and the second end of the at least one cord; wherein the controller is rotatable between a first position and a second position, wherein the at least one cord is in a loose condition with a flexible portion of the conduit being stretched and the lid sealing the container when the controller is in the first position, and wherein the at least one cord is in a tight condition with the flexible portion of the conduit shortened and the lid leaving the container when the controller is in the second position.