Did You Know...
...that two musicians were responsible for the invention of color print film? Fascinated by photography, Leopold Godowsky and Leopold Mannes worked together to produce an easy-to-use, practical color film. They worked full time as music teachers and gave concerts while experimenting during their off hours in Mannes' kitchen. Their success earned them full-time, well-paying jobs at Kodak and their efforts resulted in Kodachrome film, which was introduced in 1935.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8033900 | Low profile animal restricting vent for fluid discharge conduits A vent assembly for attachment to a fluid discharge conduit of the type connected to a clothes dryer, room exhaust fan, or the like is adapted to reduce or prevent the trapping of dirt or lint as well as flapping or vibration of the door in windy conditions. A mount... | 10/11/2011 |
| 7338359 | Structural roof venting system for grain bin and associated method A roof system for a grain storage structure. The roof system includes a plurality of enclosures defined between adjacent roof panel surfaces. Each enclosure includes opposed exterior and interior wall segments oriented at an angle relative to the panel surfaces.... | 03/04/2008 |
| 7275560 | Pressure relief door for air duct work A pressure relief door system for use in a duct for relieving positive or negative pressure within the duct includes a frame to be mounted in the duct; a gasket in the frame; a hinged door mounted on the frame and sealing against the gasket; and an adjustable pressu... | 10/02/2007 |
| 7199486 | System and method for converting wind into mechanical energy A system for converting an airflow into mechanical energy includes a drawtube and an airflow turbine capable of converting an airflow through the drawtube into rotational mechanical energy. The drawtube includes a tubular member with first and second open ends and a... | 04/03/2007 |
| 7147554 | Hooded exhaust vent A hooded exhaust vent having walls bounding an exhaust opening covered by a guard, in the assembly of which the walls and guard respectively have laterally extending slides urged in sliding movement into slide tracks in the path of the movement to establish a slidin... | 12/12/2006 |
| 7124542 | Building having a pitched, sculptured tile roof with a ridge extending atop the pitched, sculptured tile roof, which pitched, sculptured tile roof has a pitched tile roof venting arrangement There is now provided a building having a pitched, sculptured tile roof with a ridge extending atop the pitched, sculptured tile roof, with a pitched tile roof venting arrangement disposed at the ridge. The building has walls to support a roof having a ridge beam, r... | 10/24/2006 |
| 7077742 | Pressure relief valve and method of forming the same A pressure relief valve (10) includes a housing (12) with a peripheral side wall defining at least one central airflow passage and at least one flap valve element (14). The housing (12) and the flap valve element (14) have a molded... | 07/18/2006 |
| 7074124 | Ventilation system The present invention relates to a ventilation system that allows air to circulate in a building but excludes pests such as birds, insects, moths and flies to enter the building. The ventilation system includes at least one vent comprising an aperture in the roof of... | 07/11/2006 |
| 7024828 | Rollable baffled ridge vent A rollable baffled ridge vent has a top panel with a laterally flexible central portion and edges. Substantially flat wind baffles are supported outboard of the edges and each wind baffle is formed by an array of aligned coextensive rectangular baffle sections. Each... | 04/11/2006 |
| 7024829 | Ridge vent for tile roofs A ridge vent for tile roofs. The vent includes first and second sub-flashing portions for spanning air gaps provided between the upper reaches of a roof deck and below a centrally located ridge beam. A plurality of ventilation apertures are provided in each of the s... | 04/11/2006 |
| 6994622 | Vent apparatus A vent provides a route for gas flow through a building envelope. The vent comprises a substantially hollow cover member having a cover member surface which defines a vent passageway. The vent may comprise a substantially hollow adapter member. The adapter member is... | 02/07/2006 |
| 6974379 | Vent apparatus with replaceable vent cover A vent, together with one or more building apertures, provides a route for gas exchange through a building surface. The vent comprises a base member having a vent aperture therethrough and a generally planar mounting flange on its perimeter. The base member may be m... | 12/13/2005 |
| 6893339 | Eaves vent apparatus A dwelling eaves vent apparatus having a diameter-increasing passageway component to compensate for the impediment to flow unavoidably caused by a screen over the outlet to atmosphere of the component, and wherein the component is characterized by being embodied wit... | 05/17/2005 |
| 6780100 | Dryer vent mounting block A dryer vent outlet hood mounting device comprising a mounting block portion having a central opening, an interior peripheral wall about the central opening and a pair of planar, generally rectangular, peripheral flanges extending at right angles from and joined to ... | 08/24/2004 |
| 6772538 | Dryer vent A dryer vent designed to prevent bird and rodent ingress through the vent and further to prevent lint build-up includes a flap which has an edge portion recessed within the main body of the vent preventing birds and rodents from grasping the flap and opening it. Fur... | 08/10/2004 |
| 6589113 | Vent closure member with lift spacer A ridge vent assembly extends along a roof ridge of a building. One embodiment has corrugated plies defining small diameter passages that communicate a vent opening cut along the ridge of the roof with ambient atmosphere. A moveable valve member extends a... | 07/08/2003 |
| 6558251 | Roof ventilator with movable member to prevent entry of moisture A ridge vent assembly extends along the ridge of the roof of a building structure and is provided with multiple plies of corrugated material. The corrugations of the plies define small diameter passages that communicate a vent opening cut along the ridge ... | 05/06/2003 |
| 6468149 | Air vent for a vehicle A two-piece hardtop for sport utility vehicles. An air vent is provided that allows air to flow out from the interior of the vehicle without letting water enter the vehicle through it.... | 10/22/2002 |
| 6378227 | Dryer vent exhaust adapter device An adapter for clothes dryer exhaust vents includes an adapter that fits around a PVC conduit, when such a conduit is used to route dryer vent exhaust from a clothes dryer to the outside of a home or building. The adapter allows much easier installation o... | 04/30/2002 |
| 6361433 | Vent screen and hood assembly An air permeable grate or screen for selectively precluding passage of items, such as birds and rodents, through a duct is disclosed. The screen has a pivot mount on one end for pivotally mounting the screen to the exit of a hood opening to allow easy acc... | 03/26/2002 |
| 6302788 | Dryer outdoor vent with removable grill A clothes dryer exhaust vent comprises a vent hood and a detachable grill. The detachable grill fits within the vent hood opening. A snap-fit system is provided which allows one to grasp the exposed edges of the grill, squeeze inwardly and readily disenga... | 10/16/2001 |
| 6293862 | Roof vent A roof vent comprises two parts, a cover and a conduit. The conduit, with a pipeline already attached, can be easily connected to the cover, after the cover has been installed on a roof. The conduit will plug into the cover making installation easy. The v... | 09/25/2001 |
| 6230418 | Low profile dryer exhaust vent system System for installation of a complete, safe, compact, and efficient dryer exhaust. Provides access to internal areas of conduit for dryer lint build-up removal. Allows dryer placement in tight confines: laundry closets, pantry areas, first floor apartment... | 05/15/2001 |
| 6213868 | Roof ventilator with movable member to prevent entry of moisture A ridge vent assembly extends along the ridge of the roof of a building structure and is provided with multiple plies of corrugated material. The corrugations of the plies define small diameter passages that communicate a vent opening cut along the ridge ... | 04/10/2001 |
| 6206774 | Roof environmental exhaust duct An environmental exhaust duct adapted to be mounted on a roof allows for exhaust gases to escape while preventing water and debris from entering the building. The exhaust duct has a flap which is closed over the duct by gravity, and which pivots upwards w... | 03/27/2001 |
| 6203423 | Damper flap and duct connector assembly A damper flap and duct connector assembly for controlling air flow through a ventilation system includes a damper flap pivotably mounted to a duct connector. The connector connected to a ventilator has an air flow opening disposed in its center and a cyli... | 03/20/2001 |
| 6149516 | Soffit vent apparatus A soffit vent apparatus for venting gases from an enclosure to the external environment, comprising a cover comprising an air-permeable portion and a mounting flange, the cover being mountable to a soffit; a duct mountable to the cover in communication wi... | 11/21/2000 |
| 6119715 | Automated pneumatic purger An automatic control system for providing pneumatic purging protection for a sealed enclosure containing electrical equipment in accordance with the National Fire Protection Association standards. The system supplies a purge gas under a pre-ordained press... | 09/19/2000 |
| 5921863 | Roof ventilating device A ventilating device for a roof having a vent opening includes a cover for a vent opening in the roof. The cover defines vent passages for communicating the vent opening to ambient atmosphere. A moveable member mounted adjacent to the passages is moveable... | 07/13/1999 |
| 5916023 | Hooded exhaust vent An exhaust vent for routing dryer exhaust from within a structure to outside of the structure includes a unitary vent hood which is designed to be mounted to an outer wall of the structure. The vent hood includes a rear wall which defines a substantially ... | 06/29/1999 |
| 5803805 | Structure ventilating device A ventilating device for a home or other building includes a frame for covering a ventilating opening in the structure. The frame defines a passage for communicating the ventilating opening to the atmosphere. The passage contains a freely movable valve me... | 09/08/1998 |
| 5762551 | Freeze-free vent A flap valve vent hood for discharging air to atmosphere from clothes dryers and bathroom vents is provided freeze-free by a secondary valve that is mounted on the principal flap valve and covering an open area that provides a secondary air flow path thro... | 06/09/1998 |
| 5749780 | Roof vent A roof vent (8) comprises a conduit having an open entry end adapted for being arranged in sealing communication with an aperture in a roof surface, and an exit end spaced from said entry end, shield means (31) adapted for preventing entry of rain into sa... | 05/12/1998 |
| 5735739 | Insulated external exhaust's end An outdoor exhaust's end of part of an indoor building system requiring an exhaust duct to evacuate air or other kinds of smoke or gases to the building's outside. The exhaust's end comprising a double enclosure that prevents the outdoor air from comming ... | 04/07/1998 |
| 5722181 | Exhaust vent with external guard An exhaust vent guard for protecting the exit area of an air vent conduit includes an upper hood portion and integrally therewith a lower cage portion. The upper hood portion includes a top wall, a pair of sidewalls, and a front wall, which collectively p... | 03/03/1998 |
| 5716271 | Magnetic latch for exhaust vent A latch for use with a valve on the end of an exhaust vent typically associated with a clothes dryer or the like. The latch includes a flat, plastic bonded magnet having a layer of pressure sensitive adhesive (PSA) for bonding the magnet to one of either ... | 02/10/1998 |
| 5692955 | Forced air vent for a roof eave A forced air vent for allowing the unidirectional outflow of exhaust air from the interior of a structure into the atmosphere by way of an eave opening includes a generally rectangular main body, arranged with a perforate bottom wall and a pair of opposit... | 12/02/1997 |
| 5662522 | Exhaust vent A ventilator having a one-piece plastic base with integral tubular member having a through passageway for flow of an exhaust gas stream. The tubular member is preferably molded simultaneously with the base, rather than glued, so that the base and tubular ... | 09/02/1997 |
| 5653631 | Infinitely adjustable offset vent connector An extensible-contractible duct connector of slidingly interfittable, elongated, partial duct elements, the partial duct elements having an open end telescopically interfit with an open end of the other partial duct element to cooperatively form a duct co... | 08/05/1997 |
| 5645482 | Close coupled contractible vent connector A telescopically extensible-contractible air duct connector comprising an elongated outer duct element having an open end, a closed end, and a lateral opening adjacent the closed end, an inner duct element telescopically interfitting within the outer duct... | 07/08/1997 |
