Patent ID: 11937759
Assignee: DIVERSEY SWITZERLAND SERVICES GMBH
Field: Furniture, games (Other fields)
Classification: CPC A | IPC A

Claim 11:
12. The vacuum cleaner of claim 7 wherein the suction channel presents a first width (A1) of first tract, a second width (A2) of fluid flow transition over the end of side wall and between first tract and second tract, a third width (A3) of second tract, a fourth width (A4) of fluid flow transition over the end of an exterior wall portion of inner wall and between second tract and third tract, a fifth width (A5) of interior wall portion of inner wall, and a sixth width (A6) of inlet port, wherein the ratio of first and second widths (A1/A2) is 1.3 or higher; the ratio of third and second widths (A3/A2) is 1.3 or higher; the ratio of third and fourth widths (A3/A4) is 1.3 or higher; the ratio of fifth and fourth widths (A5/A4) is 1.3 or higher; and the ratio of fifth and sixth widths (A5/A6) is 1.3 or higher.