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US3234713A Expired / Lapsed US ⏱️ 0.0 years remaining

Dust collector

Assignee: Individual
•
Filing: 1962-12-24
•
Granted: 1966-02-15
•
Expires: 1982-12-24
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Abstract

No abstract record available.

Inventors

  • 👤 Richard F Harper
  • 👤 Frederick G Mcpherson

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 16:13
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/10; A47L9/18; A47L9/181; Y; Y10; Y10S; Y10S55/00; Y10S55/03

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 178 words
A DUST COLLECTOR FOR USE IN CONJUNCTION WITH APPARATUS HAVING FORCE CIRCULAR OF AIR AND DISCHARGE OF AIR TO ATMOSPHERE, COMPRISING A HOUSING HAVING AN AIR INLET INTERMEDIATE ITS HEIGHT AND AN AIR OUTLET IN ITS UPPER PART, PARTITION MEANS IN SAID HOUSING DEFINING A CIRCUITOUS PASSAGE COMMUNICATING WITH SAID AIR INLET AND DISCHARGING CIRCUMFERENTIALLY IN SAID HOUSING, SAID CONTAINER BEING ADAPTED TO HOLD LIQUID HAVING A LEVEL BELOW SAID AIR INLET AND OUTLET AND ABOVE SAID PASSAGE DISCHARGE WHEREBY AIR DISCHARGES THEREIN, REMOVABLE MEANS IN SAID HOUSING FOR DIRECTING AIR FROM SAID PASSAGE TO SAID AIR OUTLET IN A CIRCUITOUS FLOW PATH, AND INCLUDING REMOVABLE ARCUATE SEPARATOR MEANS LOCATED CENTRALLY WITHIN SAID HOUSING ADAPTED TO BE IMMERSED IN LIQUID AND PROJECTING THEREABOVE DEFINING MEANS DIRECTING FLOW CIRCUMFERENTIALLY ADJACENT THE OUTLET OF SAID PASSASGE AND ALSO DEFINING THEREIN AN INNER ZONE INTO WHICH AIR FLOWS IN ITS PATH TO SAID OUTLET, A PLURALITY OF VERTICALLY SPACED SCREENS IN SAID HOUSING BETWEEN SAID SEPARATOR MEANS AND SAID OUTLET, AND MEANS DEFLECTING AIR LATERALLY IN SAID HOUSING BETWEEN SAID SCREENS.
Claim 2
Dependent Claim 178 words
A DUST COLLECTOR FOR USE IN CONJUNCTION WITH APPARATUS HAVING FORCE CIRCULAR OF AIR AND DISCHARGE OF AIR TO ATMOSPHERE, COMPRISING A HOUSING HAVING AN AIR INLET INTERMEDIATE ITS HEIGHT AND AN AIR OUTLET IN ITS UPPER PART, PARTITION MEANS IN SAID HOUSING DEFINING A CIRCUITOUS PASSAGE COMMUNICATING WITH SAID AIR INLET AND DISCHARGING CIRCUMFERENTIALLY IN SAID HOUSING, SAID CONTAINER BEING ADAPTED TO HOLD LIQUID HAVING A LEVEL BELOW SAID AIR INLET AND OUTLET AND ABOVE SAID PASSAGE DISCHARGE WHEREBY AIR DISCHARGES THEREIN, REMOVABLE MEANS IN SAID HOUSING FOR DIRECTING AIR FROM SAID PASSAGE TO SAID AIR OUTLET IN A CIRCUITOUS FLOW PATH, AND INCLUDING REMOVABLE ARCUATE SEPARATOR MEANS LOCATED CENTRALLY WITHIN SAID HOUSING ADAPTED TO BE IMMERSED IN LIQUID AND PROJECTING THEREABOVE DEFINING MEANS DIRECTING FLOW CIRCUMFERENTIALLY ADJACENT THE OUTLET OF SAID PASSASGE AND ALSO DEFINING THEREIN AN INNER ZONE INTO WHICH AIR FLOWS IN ITS PATH TO SAID OUTLET, A PLURALITY OF VERTICALLY SPACED SCREENS IN SAID HOUSING BETWEEN SAID SEPARATOR MEANS AND SAID OUTLET, AND MEANS DEFLECTING AIR LATERALLY IN SAID HOUSING BETWEEN SAID SCREENS.

References Cited (Backward Citations)

US1062445A Cited
US1461174A Cited
US2233167A Cited
US2287806A Cited
US2075384A Cited
US2221572A Cited
GB532863A Cited
US2247103A Cited
FR871760A Cited
US2507897A Cited
US2886125A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1969-02-14 1969-08-16 1970-02-15 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1973-02-14 1973-08-16 1974-02-15 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1977-02-14 1977-08-16 1978-02-15 $7700.00 Window Closed / Lapsed

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