Robert W Frank

44318839, Feb 14, 1984

Feb 22, 1982

6/350630

Robert B. Frank - Morris Plains NJ

General Automotive Specialty Co., Inc. - Carlstadt NJ

H01H 1508

200 67D

This invention relates to an improved dual action switch assembly in which each of two pairs of electrical contacts is alternatively locked in open position by a tensioned locking element upon the interaction of a driving mechanism partially positioned within a frame on a slider unit. The switch assembly in a preferred form includes a base, two movable contact arms and two corresponding fixed contact brackets mounted on the base. The contact arms are mounted for pivotal rotation about mounting terminals. A biasing member, as for example a coil spring, is attached to each of the contact arms to provide a resilient force against pivoting opening movement of the contact arms. A tensioned locking element, preferably formed of two bent, over-center, leaf springs, is mounted between the slider unit and the base. The slider unit is capable of slidable movement along the base upon the action of a driving mechanism such that the slider unit alternatively contacts one of the contact arms at a time, causing that contact arm to pivot and separate from its connection with its corresponding contact bracket. When this occurs the tensioned locking element locks the contact arm and contact bracket in an open position until the driving mechanism reverses to cause the slider unit to actuate the other contact arm, causing the tensioned locking element to unlock, move through its maximum point of tension and relock the latter contact arm and contact bracket in open position.

43522599, Oct 5, 1982

Mar 24, 1980

6/133390

Richard W. Smith - Rumson NJ
Robert H. Frank - Freehold NJ

X. S. Smith, Inc. - Red Bank NJ

E04B 134

52 2

An inflatable movable ceiling or partition is installed in a greenhouse to limit the interior volume of the greenhouse which must be heated by artificial means. The tubes are inflatable transparent plastic tubes, which are arranged longitudinally in the greenhouse, and when inflated form a complete false ceiling partition. When the tubes are deflated, they may be pushed back to lie against the sides of the greenhouse. The ceiling or partition is formed of adjacent cylindrical inflatable tubes which are in fluid communication by means of an inventive jumper system which forms an airtight seal between adjacent members. The jumpers may be installed at the time the system is installed in the greenhouse and the ends of the cylinders sealed by wire ties or they may be taped.