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...that Kleenex tissue was originally designed to be a gas mask filter? It was developed at the beginning of World War I to replace cotton, which was then in short supply as a surgical dressing.
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| Number | Title | Issue Date |
| 7213503 | Compressible fluid pressure actuator An inner space connected to a power source and an inner space connected by way of a pressure loss part with respect to the flow of compressible fluid are provided, thereby obtaining effects similar to when the volume occupied by the compressible fluid with respect t... | 05/08/2007 |
| 7185954 | Method and device for removing part of concrete structure This invention refers to a method for removing a part of concrete construction that comprises a base concrete; a reinforced concrete formed on the base concrete; rebars embedded in the base concrete and upwardly extending through the reinforced concrete; the method ... | 03/06/2007 |
| 7104182 | Contractile unit having a position sensor means A contractile unit comprising a contractile hose extending between two spaced head pieces and adapted to perform a longitudinal contraction on being subjected to internal pressure, and a position sensor means responsive to the distance between the head pieces. The p... | 09/12/2006 |
| 6957950 | Compressor with compact screw connected housing and adjustable mounting means According to the invention, a compressor having a threaded screw connection portion formed directly on a fitting portion of the housing is provided. Since no through bolt or the like for connecting two-parts of the housing is used, the diameter of the housing can be... | 10/25/2005 |
| 6843132 | Pressure sensor A pressure sensor is realized wherein output error of sensor element can be reduced even in the case where the pressure sensor is utilized in high temperature conditions. A pressure sensor is provided with a housing 20, a diaphragm 24 that partitions t... | 01/18/2005 |
| 6840152 | Actuating means A fluid power operable actuating device, which possesses a flexible contractible tube extending between two spaced head pieces, such flexible contractible tube being caused to expand radially when its inner space is subjected to fluid pressure and transmitting simul... | 01/11/2005 |
| 5827052 | Air pump An air pump comprises a hollow pump body, at least one pulling member, an air inlet and an air outlet. The hollow pump body has air inside and consists of flexible sides and two opposite stiff ends. The air outlet is provided on the pump body to discharge... | 10/27/1998 |
| 5645056 | Variable volumetric inflatable pump A pump that can be adjusted to vary the volumetric output of the pump. The pump has a flexible housing that defines an inner pump chamber. The flexible housing can be collapsed by the user to discharge the contents of the inner chamber. Integral with the ... | 07/08/1997 |
| 5506012 | Multiple chambered lift bag A lift bag includes a plurality of independently inflatable chambers for controlling lifting of objects. Each chamber is defined by an upper surface sheet and a lower surface sheet, the upper surface sheet of one chamber positioned below an adjacent chamb... | 04/09/1996 |
| 5435230 | Inflation mechanism An inflation mechanism which comprises an inflation head and a sidewall connected by a living hinge or weakened area which permits the inflation head to invert within the interior chamber of the sidewall during compression of the inflation mechanism there... | 07/25/1995 |
| 5417144 | Power transmission device for linear movements Power transmission device for linear movement, comprising a principal member (2), which is movable along a displacement path, and a housing (1) which presents bearing means (10) for the movement of the member along the displacement path. A guide member (3... | 05/23/1995 |
| 5348270 | Bladder damper A damper includes an elastic bladder which is attached to and surrounds a support element mountable in a ventilation duct. The bladder inflates when supplied with fluid to restrict the available air space within the duct, thus restricting airflow through ... | 09/20/1994 |
| 5297944 | Inflatable pump and article The disclosure relates to a collapsible flexible pump which includes an inflatable spring and framework. The inflatable spring framework is formed by attaching a layer of flexible material over selected exterior portions of the flexible material pumping c... | 03/29/1994 |
| 5230414 | Coupling assembly component A coupling assembly component is used in a coupling assembly to transmit force between driving and driven elements. The coupling assembly component includes an annular tube which is radially extensible and retractable to move a friction surface into and o... | 07/27/1993 |
| 5167631 | Portable infusion device A fluid pump for infusing medical fluids to a patient includes a housing having an inlet port and an outlet port. The housing further includes a substantially hemispherically shaped surface which is circumscribed by a periphery. An elastomeric membrane is... | 12/01/1992 |
| 5158005 | Actuator using elastic extensible member An actuator includes an elastic member extensible in axial directions when a pressurized fluid is supplied into the elastic member, and guiding device arranged outwardly of the elastic member and permitting the elastic member to move in the axial directio... | 10/27/1992 |
| 5033270 | Rotary bellows An actuator, which directly converts fluid pressure to rotary movement, has generally cylindrical and helically fluted circumferential wall, an end wall bearing an output member, and a fixed opposite end wall. The actuator may be a one-shot device providi... | 07/23/1991 |
| 4974497 | Hydraulic muscle terminator with bleed seal A terminator for a fluid actuated muscle has an axial bore and a removable seal pin that fits into an elastomeric tubular liner in the bore. The pin has a flattened outer end with a hole through it to facilitate extraction. The pin is removed to facilitat... | 12/04/1990 |
| 4756237 | Device for converting energy of fluid medium into mechanical work of working member According to the invention, the device comprises a housing (1), two chambers (2, 3) interconnected through a pipeline (4) and disposed in the housing opposite to each other. Each chamber (2 or 3) has a piston made in the form of an elastic sleeve (10 and ... | 07/12/1988 |
| 4485727 | Pressure pilot switch point device An improved switch point setting device for fluid process sensors monitoring a process pressure, including a cylindrical housing, an elongated threaded shaft rotatably mounted in the housing, and a movable post member with a threaded base portion threadab... | 12/04/1984 |
| 4325466 | Disk brakes A fully lined disk brake has a brake housing rotatably mounted on a wheel and segmented arcuate shaped brake shoes supported in the brake housing by a fixed mounting on the wheel assembly which extends over the radially outward open end of the housing to ... | 04/20/1982 |
| 4323741 | Mechanical deflection apparatus for sensing fluid pressure Apparatus is disclosed for sensing fluid pressure by mechanical flexure of a tube according to the principles of the Bourdon tube, wherein the tube forms a part of the fluid flow path, and where the pressure may be sensed during both dynamic and static fl... | 04/06/1982 |
| 4169353 | Pneumatic control device A pneumatic control device for a displaceable member of an electric circuit, having a compressible air reservoir adapted and connected by a flexible conduit to an enclosure comprising the said movable member, and comprising three superposed rigid or semi-... | 10/02/1979 |
| 3975989 | Pressure responsive force transmission apparatus Pressure responsive force transmission apparatus such as may be used in automatic controls and for hydraulic and pneumatic lift or force mechanisms comprises a pair of substantially rigid lift elements each having a base plate, at least two guide arms pro... | 08/24/1976 |
