Infinitely adjustable offset vent connector

Details Infinitely adjustable offset vent connector Infinitely adjustable offset vent connector

1996-05-03

1997-08-05

Bennett, Henry A.

Ventilation

Having outlet airway

34235, 454359, F24F 700

Patent

active

056536313

ABSTRACT:
An extensible-contractible duct connector of slidingly interfittable, elongated, partial duct elements, the partial duct elements having an open end telescopically interfit with an open end of the other partial duct element to cooperatively form a duct connector, each having an outer closed end, each partial duct element having a side air flow opening directly adjacent the respective one of the closed ends to prevent significant dead air space between the opening and the adjacent closed end, the partial duct elements having slidably interfitting lateral edges with each other enabling sliding telescopic interfit that is incrementally variably adjustable between an extended condition with the side air flow openings offset maximally from each other, and a contracted condition with the side air flow openings having zero offset from each other.

REFERENCES:
patent: 31652 (1861-03-01), Bell
patent: D218825 (1970-09-01), Blummer
patent: 258311 (1882-05-01), Neilson
patent: 317353 (1885-05-01), Hayes
patent: 323317 (1885-07-01), Goodrich
patent: 732497 (1903-06-01), Amos
patent: 831429 (1906-09-01), Harington
patent: 2044761 (1936-06-01), Becvar
patent: 3511252 (1970-05-01), Kennedy
patent: 5257468 (1993-11-01), Lebrun

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