Central air conditioning system
US4691531A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 7, 1986 |
| Grant date | Sep 8, 1987 |
| Priority date | — |
| Expiry date | Jul 7, 2006 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24F5/001
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A water cooled central air conditioning system for use in combination with the existing duct work and furnace of a central air heating system of the type commonly used for heating residential homes. The air conditioning system is comprised of an A-frame evaporator coil supported on angle irons which are integral with an abutting box-line central unit housing a compressor, condensor, expansion valve, water inlet, outlet, condensate outlet, and other components. The entire monolithic assembly is suspended from above by spring-loaded cords attached to the central unit. The evaporator coil projects through an opening in the furnace wall into the hot air plenum of the furnace, and a foam gasket provides a resilient air-tight seal around the opening.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.