Valves and valve actuation – Fluid actuated or retarded – Flexible wall expansible chamber reciprocating valve actuator
Patent
1987-07-29
1988-11-08
Tapolcai, William E.
Valves and valve actuation
Fluid actuated or retarded
Flexible wall expansible chamber reciprocating valve actuator
92 92, 236 49, 251 5, F16K 31385
Patent
active
047830450
ABSTRACT:
A portable self-deflating fluid inflatable bladder adaptable to use as a damper for control of fluid flow in fluid supply systems and more specifically for control of air flow in heating and air conditioning ducts such as may be effectively used in zone controlled air conditioning systems. The bladder is an assembly of two layers of sheet material sealed together, one layer being a flat base sheet of semi-rigid flexible material having an internal memory causing it to return to its flat shape upon removal of flexing forces, the other layer being a flexible conformable material without shape memory so that it responds to make space for the volume of air pumped between the layers by way of a connection thereto. Inflation stresses on the base sheet cause it to be self-deflating and enables the bladder to be closely regulated in size for corresponding close control of air flow through an air passage in which the bladder is installed. It is manually insertable in a flow passageway without need for modification of existing systems. The bladder can be made cylindrical in form for insertion in circular, oval, square or rectangular shaped passageways. Auxiliary blocking members are provided for fixed association with the bladder in strategic locations on the surface of the conformable layer to fill in small open spaces on the interior of a passageway which predictably present themselves between mated sections of inflated bladders.
REFERENCES:
patent: 2641282 (1953-06-01), Hazlett
patent: 2982511 (1961-05-01), Connor
patent: 3103300 (1963-09-01), Lau
patent: 3292718 (1966-12-01), Stone
patent: 3552712 (1971-01-01), Whitlock
patent: 4108418 (1978-08-01), Ensign et al.
patent: 4268005 (1981-05-01), Raftis et al.
patent: 4303100 (1981-12-01), Kalb
patent: 4494345 (1985-01-01), Peterson
IBM Technical Disclosure Bulletin to G. A. Lenike, vol. 8, No. 6, Nov. 1965.
Schroeder Charles F.
Tapolcai William E.
LandOfFree
Inflatable bladder for control of fluid flow does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Inflatable bladder for control of fluid flow, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Inflatable bladder for control of fluid flow will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-460708