Inventor
Assignee
Application No. 29187370 filed on 07/31/2003
US Classes: D32/32 Nozzle or attachment therefor
Examiners Primary:
McInroy, Ruth
Attorney, Agent or Firm
Claims Description
Field of Search Separator mounted on or attached to manipulating handle, e.g., push broom type Separator element cleaning in situ and/or storage or removal of retained dirt With liquid and/or deflection type separator With work-contacting carriage or mount, and relatively adjustable nozzle With agitator adjustable relative to nozzle Manipulatable nozzle with flexible conduit connection to portable power and/or material supply unit, e.g., window washer Nozzles Closed circuit systems, i.e., air recirculating With dust or dirt handling or storing or separating, e.g., filter bags Motor features, e.g., housing or casing assemblies Nozzle attachment type Tank type cleaner organization Casing feature Air float or support Cleaner encircling roller Off-the-floor support (e.g., operator supported) Vertically aligned motor and filter Horizontally aligned motor and filter Handle features, e.g., limit stops or storage locks Detachable and/or extension nozzles Retractable, i.e., selective use Oscillating agitator, e.g., sweeping Rotary agitator Nozzle With plural mouths selectively usable, e.g., "duplex" nozzles Top and bottom reversible type With area adjusting, e.g., restrictors With air flow control means, e.g., work-operated valve With notched or grooved lips for localized intensification of air draft With auxiliary inlet for ambient air, e.g., vacuum relief With guard to inhibit work entry into nozzle mouth Width changes along transverse dimension Rotary only, e.g., "Hoover" type beating brush
December 14, 2018. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
