CA2430225A1 - Thermostatic lift link - Google Patents

Abstract

In a thermostatic arm actuated by the expansion of a gas, it is known that the gas is usually supplied by another machine or a reservoir containing the gas connected to the thermostatic arm. In the present invention, the gas is contained in a flexible membrane inserted in the body of the thermostatic arm, such a membrane with the mechanical arm allows the autonomy of the mechanical arm.

Description

T a preserae invention brings a ~ nachir ~ e generating ur ~ e force motor for opening, closing, lifting or operating. other pieces without external energy supply.
It is common, in the case of a device used to actuate dis valve, shutters etc. The necessary gas is either supplied by another machine or by a reser ~. ~ oir containing the gas. It is in the first case obviously necessary that the thermostatic arm be connected to a machine containing gas placed nearby. What redi.ait the application of the thermostatic arm. In both cases a mechanical manufacture of precision is required due to the required sealing inside dP
the gas expansion chamber.
L? is in common use in the case of expansion chamber used segment and seals. To reduce (premature wear of joint and segment inside the chamber it must be machined precisely .
I discovered that these disadvantages can be eliminated by the use of a waterproof and t ~ Iexible membrane containing the gas and placed inside the expansion chamber. Such a membrane allows mechanical movement due to gas expansion due to its flexibility and also allows sealing, this process therefore eliminates the joints and segment as well as the mechanical fitting L a figure {1) shows a section er ~ elevation of the realization The main element consists of a body (5) composed of a material or of an alloy of materials, resistant to pressure, heat and heat conductor. Plugged at one end by a plug (2) even perforated from one side to the other in order to fill the Ia membrane (4) ie body (5) the membrane (4) and the plug (2) are taken into tightened by the ring (3) to ensure tightness, a piston (7) inserted the other end of the membrane, this one clamped in the greenhouse between the ring (;
) and the piston (i) the force arm (9) in contact with the piston (7) crosses a spring {8) a disc and ~~ no adjustment rod (ll) connected to a bolo_n_ of aj ustemenï (1 ~).
When the ambient temperature increases, the pressure of the gay contained in the membrane () increases and creates an extension of the membrane and thus applies pressure on the piston {7), this one tends ~~
moved towards the end of the body (5) and thereby applies a press the force arm (9) and the spring (8), the latter being retained by Ie adjustment disc The operating pressure will be adjustable by turning the adjustment rod either by reducing the length of the spring (8) or by increasing the length using the adjustment bolt.

Claims (8)

1) Thermostatic arm device in closed circuit and autonomous, designed with a flexible and waterproof membrane, ins.ré a the interior of a rigid body charged with a gas whose pressure increases or decreases with temperature variation, creating a internal mechanical power.
Transmi has a force arm in contact with the outside of the body and thus transmitting a movement of mechanical power. 2) Device according to claim number 1 characterized in that the membrane is formed from a waterproof body salt. 3) Device according to claim (1) including the sealing device of the membrane is composed of plugs at each end and not connected to the body. 4) Device according to claim 1, the spring device are inverted compared to the drawing (1) 5) Device according to claim 1,2,3, including the spring device will be another membrane. 6) Device according to claim 1,3,4,5 including the device are not rings. 7) Device according to claim 1,3,4,5,6, including the device sealing are of unknown technology to date. 8) Device according to claim numeral, or the body of the thermostatic arm is integrated or engineered another larger body which this one has another function.