The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 23, 1996
Filed:
Feb. 22, 1994
Albert D Seim, II, Richmond, VA (US);
Herman J Steinbuchel, IV, Richmond, VA (US);
Clive W Watson, Richmond, VA (US);
Molins PLC, Milton Keynes, GB;
Abstract
In a pneumatic filter rod conveying system a vent (12) is in the line (10) close to the distributor (2). This enables a relatively high pressure gradient to be established, with resultant high filter transfer rates at the distributor, without having excessively high pressures in the distributor and/or higher than necessary line transmission speeds. Also, there may be a selectable pressure switch (40) for reducing air pressure at the distributor when there are fewer than normal filters in the line, e.g., at the end of a run: this also allows avoidance of undesirably high line transmission speeds.