Sump pump assembly
US4021145A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 2, 1976 |
| Grant date | May 3, 1977 |
| Priority date | — |
| Expiry date | Jan 2, 1996 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D7/02
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A modular sump pump assembly is disclosed that consists of three components--a base module, a power module and a switch module. The base module includes the pump casing and is adapted to be connected to the piping that is utilized for discharging the liquid from the sump. The power module, which comprises the pump impeller, the motor, the connecting drive shaft and related parts can be inserted at the pump impeller end into and removed from the base module by means of a bayonet-type joint so that servicing of the power module can be performed merely by twisting the power module relative to the base module to disconnect the bayonet-type joint, after which the power module can be lifted from the sump. The switch module is connected to the power module so that it also can be serviced merely by removal of the power module from the base module and then, if desired, disconnected from the power module.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.