Plastic foundation vent
US5487701A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 20, 1994 |
| Grant date | Jan 30, 1996 |
| Priority date | — |
| Expiry date | Jun 20, 2014 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24F13/08
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
The plastic foundation vent embodying the invention comprises a plastic body with an integral peripheral rectangular wall surrounding the plastic body and defining opposed long sides and opposed short sides, an integral peripheral flange extends outwardly from the peripheral wall. A central integral screen portion having openings for bending and prevention of entry of animals and the like is provided within the peripheral wall. The peripheral flange has a front surface and a rear surface. A first groove is provided on the rear surface of one of the flanges alongside to define a live hinge line permitting the flange to be bent backwardly and forwardly. A second groove on the front surface of the flange on each of the short sides permits bending of the flange along the short sides, A third groove on the front surface of the flange along the short sides permits bending of the short sides about a second live hinge, cutting lines ace provided at right angles on the flange having live hinge to permit corners of the flange to be cut for use in replacement of a foundation vent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.