Carwash vacuum motor
US12215711B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 4, 2024 |
| Grant date | Feb 4, 2025 |
| Priority date | — |
| Expiry date | Jan 4, 2044 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D27/0276
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A vacuum motor assembly that includes a motor comprising a drive shaft; an impeller having a plurality of impeller blades spaced radially around a center portion of the impeller. An impeller cover that forms an air channel is spaced around the impeller and the impeller cover includes a front portion; a back portion engaged to the front portion; and a back support. The drive shaft of the motor passes through the drive shaft receiving hole of the back support and engages with the impeller. A front surface of the impeller defines a vertical plane and a first air channel interior distance from the front portion inner surface to the vertical plane within the airflow channel is greater than a second air channel interior distance measured from a back portion inner surface to the same vertical plane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.