Patent ID: 9377339
Filing Date: 2016-06-28
CPC Classification: E06B,F24F,G01F

Claim Text:
1. A frame for connecting an opening of an airflow measurement apparatus to an external perimeter of an air vent opening, comprising: (a) a removable sealing gasket; and (b) two pairs of frame elements comprising four sides of the frame, wherein each pair of frame elements is connected approximately perpendicularly at corresponding ends thereof; and further wherein each frame element comprises an outer ridge element, a center ridge element and an inner ridge element, wherein: further wherein an end of the base element that is nearest to the inner ridge element is perpendicularly and integrally connected to an integral second holder tab, thereby forming a gasket slot for receiving the removable sealing gasket; and further wherein a side of the base element opposite the outer, center and inner ridge elements is connected to a stabilizing element, and is integrally connected with the end of a respective said outer ridge element to form the locking tab.