US 11,690,489 B2
Surface cleaning apparatus with an external dirt chamber
Wayne Ernest Conrad, Hampton (CA)
Assigned to Omachron Intellectual Property Inc., Hampton (CA)
Filed by Omachron Intellectual Property Inc., Hampton (CA)
Filed on Dec. 13, 2021, as Appl. No. 17/549,138.
Application 17/549,138 is a continuation of application No. 16/847,476, filed on Apr. 13, 2020, granted, now 11,229,340.
Application 16/847,476 is a continuation of application No. 16/100,624, filed on Aug. 10, 2018, granted, now 10,667,663, issued on Jun. 2, 2020.
Application 16/100,624 is a continuation in part of application No. 15/937,220, filed on Mar. 27, 2018, granted, now 10,791,895, issued on Oct. 6, 2020.
Application 16/847,476 is a continuation in part of application No. 16/450,304, filed on Jun. 24, 2019.
Application 16/450,304 is a continuation of application No. 15/184,954, filed on Jun. 16, 2016, granted, now 10,376,112, issued on Aug. 13, 2019.
Application 15/184,954 is a continuation of application No. 13/779,405, filed on Feb. 27, 2013, granted, now 9,433,332, issued on Sep. 6, 2016.
Application 13/779,405 is a continuation in part of application No. 14/994,495, filed on Jan. 13, 2016, abandoned.
Application 14/994,495 is a continuation of application No. 13/039,376, filed on Mar. 3, 2011, granted, now 9,265,395, issued on Feb. 23, 2016.
Application 13/039,376 is a continuation in part of application No. 12/722,705, filed on Mar. 12, 2010, granted, now 8,578,555, issued on Nov. 12, 2013.
Application 15/184,954 is a continuation of application No. 14/932,816, filed on Nov. 4, 2015, granted, now 9,693,666, issued on Jul. 4, 2017.
Application 14/932,816 is a continuation of application No. 13/040,676, filed on Mar. 4, 2011, granted, now 9,211,044, issued on Dec. 15, 2015.
Application 17/549,138 is a continuation in part of application No. 17/367,538, filed on Jul. 5, 2021.
Application 17/367,538 is a continuation of application No. 17/196,380, filed on Mar. 9, 2021.
Application 17/196,380 is a continuation of application No. 15/931,973, filed on May 14, 2020, granted, now 11,529,031.
Application 15/931,973 is a continuation of application No. 16/022,902, filed on Jun. 29, 2018, granted, now 11,330,944.
Application 16/022,902 is a continuation of application No. 15/012,783, filed on Feb. 1, 2016, granted, now 10,548,442, issued on Feb. 4, 2020.
Application 15/012,783 is a continuation of application No. 14/874,544, filed on Oct. 5, 2015, granted, now 9,826,868, issued on Nov. 28, 2017.
Application 14/874,544 is a continuation of application No. 13/255,875, granted, now 9,204,769, issued on Dec. 8, 2015, previously published as PCT/CA2010/000342, filed on Mar. 9, 2010.
Claims priority of application No. CA 2658372 (CA), filed on Mar. 13, 2009.
Prior Publication US 2022/0167811 A1, Jun. 2, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. B01D 45/12 (2006.01); A47L 9/16 (2006.01); A47L 5/24 (2006.01); B01D 45/16 (2006.01); B04C 5/185 (2006.01); B04C 5/26 (2006.01); B04C 5/28 (2006.01); B01D 50/20 (2022.01); B04C 9/00 (2006.01)
CPC A47L 9/1683 (2013.01) [A47L 5/24 (2013.01); A47L 9/1608 (2013.01); A47L 9/1625 (2013.01); A47L 9/1641 (2013.01); A47L 9/1666 (2013.01); B01D 45/12 (2013.01); B01D 45/16 (2013.01); B04C 5/185 (2013.01); B04C 5/26 (2013.01); B04C 5/28 (2013.01); B01D 50/20 (2022.01); B04C 2009/002 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A vacuum cleaner comprising:
(a) an air flow path extending from a dirty air inlet to a clean air outlet;
(b) a cyclone and a suction motor provided in the air flow path;
(c) the cyclone comprising a cyclone chamber having a central longitudinal axis, the cyclone having a first end having a first end wall, an axially spaced apart second end, a cyclone chamber sidewall located between the first and second ends, a cyclone air inlet provided at the first end, a cyclone air outlet provided at the first end and a dirt outlet provided at the second end, wherein a first end of the cyclone chamber sidewall is located at the first end of the cyclone and a second end of the sidewall is spaced from the first end and has an end face;
(d) a plate located at the second end of the cyclone, the plate having a plate perimeter, a cyclone chamber face that faces towards the first end of the cyclone, wherein the plate is moveably mounted between a closed position, in which the plate is positioned for operation of the cyclone, and an open position wherein the plate is moved to provide access to the cyclone chamber; and,
(e) a dirt collection region in communication with the cyclone chamber via the dirt outlet,
wherein, when the plate is in the closed position, at least a portion of the end face of the cyclone chamber sidewall extends at an angle to the central longitudinal axis whereby the dirt outlet comprises an axial spacing between the cyclone chamber sidewall and the plate, and
wherein, when the plate is in the closed position, the dirt outlet further comprises a radial spacing between the cyclone chamber sidewall and the plate.