×

Dust Collector

  • US 6,224,471 B1
  • Filed: 10/20/1997
  • Issued: 05/01/2001
  • Est. Priority Date: 01/22/1993
  • Status: Expired due to Term
First Claim
Patent Images

1. A rigid, porous dust collector, comprising:

  • a non-collapsible container having an attachment end adapted for connection to a source of dust, a closed end, and at least one sidewall between the attachment and closed ends to form a dust-collecting space, the at least one sidewall consisting essentially of a rigid, porous material configured to provide sufficient structural rigidity to the container to make the container non-collapsible, the porous material having a thickness and a pore size sufficient to substantially hinder dust from escaping through the at least one sidewall while allowing air to pass therethrough.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×