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Class 137/849 - Multiple slit


Subclass of Class 137 - Fluid handling
Definition: Valve wherein the expansible port is formed as a plurality
No. of patents: 89
Last issue date: 08/03/2010


1      
NumberTitleIssue Date
7766044Two-way damper
A two-way damper is provided including a retaining member and a baffle. The baffle comprises a flexible member with a first portion secured and held in a fixed position by the retaining member and a second portion normally oriented in a first position, but free to m...
08/03/2010
7371227Trocar seal assembly
A seal assembly adapted for use in conjunction with a trocar assembly includes a plurality of seal segments, each seal segment including a peripheral edge and a seam edge. Each seal segment further includes a first section and a second section with a vertical wall c...
05/13/2008
7331949Urinary catheter with check valve
The present invention provides a novel construction for a catheter that includes backflow prevention in the form of a check valve, which keeps the flow of drained fluid material from reentering the patient. The catheter construction of the present invention provides...
02/19/2008
7240378Flange valve
A flange valve to deter entry of rodents and pests, insertable on existing devices, comprising a unidirectional swinging door attached on an inner wall of a frame, the door and the inner wall of the frame having a clearance between them of a dimension not allowing e...
07/10/2007
7237619Automatic fire sprinkler having a variable orifice
An automatic fire sprinkler having a variable orifice, the sprinkler having a variable orifice associated with the automatic fire sprinkler, and wherein the orifice is responsive to the water inlet pressure of the sprinkler. ...
07/03/2007
7153319Trocar system having shielded trocar
A trocar system is provided which preferably includes a cannula having an elongate cannula body. The cannula body includes medial and distal portions thereof having a first diameter and a proximal portion thereof connected to the medial portion and having a second d...
12/26/2006
7150727Apparatus and method for preventing free flow in an infusion line
An apparatus and method for preventing free flow through an infusion set utilizes an occluder disposed within the infusion set to selectively prevent flow therethrough. The occluder may be responsive to a pressure differential within the infusion set or may respond ...
12/19/2006
7137491Shock absorber non-vibrating check valve assembly
A check valve assembly for a shock absorber includes a tapered valve seat and a polygonal check valve which includes a plurality of flat surfaces. Each pair of flat surfaces intersects at a linear engagement surface which slidably engages a cylindrical chamber. When...
11/21/2006
7101353Splittable medical valve
A hemostatic valve couples to a sheath proximal hub having an inside and an outside surface. The hemostatic valve has a valve body having a proximal porting and end, and a distal portion and end. A passageway extends longitudinally through the valve body between the...
09/05/2006
7044127Multipurpose mask
A protective, multipurpose mask covers the oral and nasal areas. The mask has an opening about or around the mouth area of the wearer which allows different devices to be inserted and withdrawn from the wearer's mouth while the mask is in place on the wearer. ...
05/16/2006
7036509Multiple seal port anesthesia adapter
Disclosed is an anesthesia adapter that is suitable for the simultaneous insertion of multiple devices or instruments into the lungs during ventilation of the patient, while minimizing or eliminating gas leaks. The anesthesia adapter comprises in one embodiment a fi...
05/02/2006
7037303Urinary flow control valve
A flow control valve (22) such as for a catheter (10) allows discharge of urine from a bladder (12) by manual actuation. The valve (22) may be a double-duckbill valve (22) with a single slit (62) at one apex (60a
05/02/2006
6953320Ventilation fan
A ventilation fan assembly (10) having a fan (22) mounted in a housing (12) and a shutter assembly (60). The housing has a square inlet portion (12C), a circular center portion (12E) and a conical outlet portion (12D)...
10/11/2005
6918526Muffler for staple guns
A muffler is received in a passage of an end member connected to a handle of the staple gun and a fitting extends from the end member so as to be connected to a hose. The muffler includes a tubular body and a plurality of plates extend from an end of the tubular bod...
07/19/2005
6913596Valved over-the-wire catheter
A catheter with a distal end having a member formed from a hydrophilic composition is provided. The hydrophilic composition expands upon contact with an aqueous fluid to move the member from a quiescent state to an expanded state. The member may provide an open pass...
07/05/2005
6854484Valve for a slurry outlet opening of a chemical mechanical polishing device and chemical mechanical polishing device having a valve
A valve for a slurry outlet opening in an installation for chemical mechanical polishing, in particular of semiconductor wafers in DRAM production, includes an elastic diaphragm, which covers the slurry outlet opening and has at least one self-closing opening. It is...
02/15/2005
6569120Seal assembly
A valve assembly is provided for permitting the introduction of a surgical instrument into a patient's body while providing a substantial seal about the instrument. The valve assembly includes a sealing gasket assembly providing a fluid tight seal before ...
05/27/2003
6554698Fan one way air valve
A valve for a vent. The valve includes an inner leaf having a closed state which covers the vent and blocks gas flow through the vent in a first direction, and an open state which opens the vent and allows gas flow through the vent in a second direction. ...
04/29/2003
6540616Venting device for a constant velocity joint
A constant velocity joint vent for use in a constant velocity joint of an automotive vehicle. The constant velocity joint vent including a circumferential base and a cylindrical projection extending from one end of the base. The constant velocity joint ve...
04/01/2003
6457613Container equipped with protective seal
A container equipped with a rupturable retaining seal which, when broken, forms a spout from which the contents of the container may be poured. The rupturable seal is secured along its peripheral edge to the top opening of the container and contains a pin...
10/01/2002
6453940Insert bonded combination valve
A combination valve including a metal sleeve and a valve body. The valve body is formed of a resilient material and insert bonded or vulcanized to the metal sleeve and includes a cylindrical elongated member defining a passageway therethrough and an annul...
09/24/2002
6450563Noise shut-off device for doors of automotive vehicle
A noise shut-off device is provided for doors of an automotive vehicle to effectively prevent driving noises from being introduced to the vehicle interior through draining holes formed at the bottom of the vehicle door, while allowing the draining out of ...
09/17/2002
6382255Check valves
A check valve comprises a body of elastomeric material having a tubular inlet at a first end with a radial flange. The body has a side surround with three equi-spaced valleys tapering together towards a second end opposite to the first end and having ther...
05/07/2002
6378559Discharge outlet control
A discharge flow control includes a plurality of flexible elongate elements adapted to be supported at one end from a discharge outlet to extend from the outlet in the direction of the discharge and across the flow path of the discharge outlet....
04/30/2002
6273128Apparatus for controlling the flow of fluid
Apparatus for controlling the flow of fluid includes a gravity sensitive valve for receiving fluid from a fluid flow passageway and a pressure activated valve located downstream from the gravity sensitive valve. The gravity sensitive valve interrupts flow...
08/14/2001
6227464In-line basket filter and anti-siphon valve assembly for spray spout and the like
A hand held spray spout (10) has a basket filter (26) seated against an anti-siphon valve (24) proximate the base end of a water passage (12) within the spout. The filter has a plurality of protrusions (50) mounted within the inner diameter of the valve (...
05/08/2001
6216722Freeze-resistant hydrant
A freeze-resistant hydrant (10, 110) extending between a first area having a temperature at least intermittently below freezing and a second area having a temperature constantly above freezing including, a heat-transfer tube (20, 120), a first end (21, 12...
04/17/2001
6176234Mouthpiece for a nebulizer
A mouth piece exhalation valve for a nebulizer or breathing circuit. The nebulizer has an internal passageway containing an offset causing an inspiration mist flow to bypass the exhaust valve without impingement. The offset includes a deflector which aids...
01/23/2001
6148860Low volume vacuum toilet assembly
A vacuum tank assembly has a low volume configuration so that it can be used in boats and recreational vehicles where space is at a premium. A stack of components, with a waste tank at the bottom, then a vacuum tank with directly connected vacuum pump, an...
11/21/2000
6138710Vent disc for baby bottle and method and apparatus for manufacture thereof
A vent disc for a container is provided. The vent disc has a concavely curved domed central panel with a plurality of perforations extending therethrough along radii that form the concave curvature of the domed central panel. The domed central panel can h...
10/31/2000
6119713Apparatus to prevent rapid multiple flushing
Apparatus for delaying initiation of a successive flush cycle in a plumbing system utilizing a diaphragm flush valve having an improved relief valve assembly and/or an improved vacuum breaker assembly structured to delay after initiation of an initial flu...
09/19/2000
6112952Valved dispensing system with hydraulic hammer protection for the valve
A dispensing system is provided for dispensing liquid from a container. The system includes a discharge conduit defining a flow passage for establishing fluid communication with liquid from the container. A resilient valve is provided to extend across the...
09/05/2000
6099505Valve assembly with automatic valve
A surgical trocar assembly includes a disposable valve assembly, a cannula assembly, and a trocar with a handle. The cannula assembly includes a cannula base having a valve assembly coupling device at its proximal end, and a cannula extending from its dis...
08/08/2000
6066117Cannula flapper valve assembly
A cannula includes a cannula cap connected to a proximal end of the cannula, which cap has cap body having a bore defining an instrument receiving passageway. A monolithic flapper valve is positioned within the cannula proximal end and adjacent the cap bo...
05/23/2000
6035896Valve
The invention concerns a valve comprising a circular frame (1) whose inner edge narrows to form flexible areas (3) connecting the frame to triangular vanes (2). The areas (3) form articulations about which the vanes pivot when the valve opens or closes. I...
03/14/2000
6026993Pump and pump outlet nozzle
A pump comprises an inlet for pumping a liquid and an outlet nozzle for dispensing the pumped liquid. The outlet nozzle comprises an outflow opening which includes an outlet valve formed by a valve wall made of a flexible material. In a rest position, the...
02/22/2000
5890959High efficiency blower system with integral backflow preventor
In a multiblower system for cooling electronic components, each blower has a backflow preventor. The backflow preventor has two pieces of flexible material and a screen attached to the intake side of the blower assembly. Each of the pieces of flexible mat...
04/06/1999
5873297Fluid-operated brake actuator with check valve
A fluid-operated brake actuator having a check valve in the spring chamber to equalize the pressure on opposite sides of an operating movable diaphragm. The check valve being double redundant and tamper resistant and comprising a tubular body having a fir...
02/23/1999
5871471Disposable value assembly for reusable surgical trocar
A surgical trocar assembly includes a disposable valve assembly, a cannula assembly, and a trocar with a handle. The cannula assembly includes a cannula base having a valve assembly coupling device at its proximal end, and a cannula extending from its dis...
02/16/1999
5820604Cannula cap including yeildable outer seal and flapper valve
A cannula cap embodiment includes a monolithic elastomeric cap body having a sidewall portion for engaging a proximal end of a cannula, and an end portion connected to the cylindrical sidewall portion. The cannula cap also includes a monolithic flapper va...
10/13/1998
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