Refrigeration, foam sealing bushing
US5103528A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 12, 1991 |
| Grant date | Apr 14, 1992 |
| Priority date | — |
| Expiry date | Feb 12, 2011 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25D23/064
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A refrigration, foam sealing bushing is provided for use within a refrigeration door cavity. The bushing is formed of a male member, and a female member. The male member includes a head portion, an upper shank portion, a reduced lower shank portion, and a disc-like member. The female member is formed of a tubular section having an open upper end and an open lower end. The tubular section has an axially extending bore which extends between the open upper end and the open lower end for telescopingly receiving the lower shank portion of the male member. Passageways are formed between the outer surface of the reduced lower shank portion and inner surface of the axially extending bore of the tubular section for permitting air to escape from the door cavity but yet preventing foam insulation from escaping during the injection of the foam insulation into the door cavity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.