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Class Information
Number: 15/422.1
Name: Brushing, scrubbing, and general cleaning > Machines > With air blast or suction > Nozzle > Width changes along transverse dimension
Description: Subject matter wherein one of the dimensions of the nozzle opening is greater than its other dimensions and wherein the dimension of the opening perpendicular to the greater dimension varies over the extent of the greater dimension.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7401378 |
Vacuum attachment for a yard vacuum apparatus |
Jul. 22, 2008 |
| 5799365 |
Adjustable nozzle for chipper-shredder vacuum |
Sep. 1, 1998 |
| 5794306 |
Yard care machine vacuum head |
Aug. 18, 1998 |
| 5542148 |
Broom assisted pick-up head |
Aug. 6, 1996 |
| 5423913 |
Apparatus and method for control of metallic coating-weight by the use of gas knives |
Jun. 13, 1995 |
| 4797206 |
Siphon device for cleaning spas |
Jan. 10, 1989 |
| 4715088 |
Vacuum cleaner attachment |
Dec. 29, 1987 |
| 4651376 |
Underwater self-contained cleaning assembly |
Mar. 24, 1987 |
| 4506406 |
Attachment tool for a vacuum cleaner hose |
Mar. 26, 1985 |
| 4476607 |
Portable vacuum cleaning device |
Oct. 16, 1984 |
| 4454621 |
Sheet and web cleaner |
Jun. 19, 1984 |
| 4446593 |
Carpet steaming tool |
May. 8, 1984 |
| 4374446 |
Vacuum nozzle for carpeted stair treads and risers |
Feb. 22, 1983 |
| 4304022 |
Underwater cleaning apparatus |
Dec. 8, 1981 |
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