Did You Know...
...that after Walter Hunt patented the safety pin in 1849, he sold the rights to it for $400?
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 |
| 8117711 | High efficiency intake hood system for mobile sweeper vehicles An improved pickup or intake hood for use in regenerative air flow road and pavement sweeper vehicles includes at least one side auxiliary plenums and/or at least one side-to-side plenum adjacent the primary air flow compartment. The auxiliary plenums are attached b... | 02/21/2012 |
| 7721374 | Debris/load leveling system A mechanized broom-type sweeper truck that includes a pavement engaging brush or broom and an elevator for transported debris to the inlet or entry opening of a debris container includes a slinging roller in the debris container mounted at or subjacent the inlet ope... | 05/25/2010 |
| 7621018 | Road/pavement cleaning machine having air-blast functionality A road/pavement sweeper is provided with a pickup head or debris-intake hood that operates in a conventional manner to entrain or aspirate particles and/or debris from the pavement surface. The air-inlet structure of the debris-intake hood is provided with an air-fl... | 11/24/2009 |
| 7441303 | Pavement/surface sweeper having a simplified hydraulic system A sweeper unit well-suited for use for sweeping paved areas includes a debris-retaining hopper with an associated fan assembly that includes an air outlet duct for connection to one side of a pick-up head and an inlet duct for connection between the other side of th... | 10/28/2008 |
| 7159949 | Dump door open/close system A debris container of the type used on roadway and pavement sweeper and sweeping vehicles includes a hinged door through which the interior of the debris container may be inspected and through which debris is emptied when the container is elevated and rotated to its... | 01/09/2007 |
| 6412203 | Elevatable signboard system for highway vehicles An elevatable multi-function signboard system for highway vehicles, such as pavement/roadway sweepers, carries a warning/signal system that can be moved between a lowered position and an elevated position. In the lowered position, the signboard also funct... | 07/02/2002 |
| 6371565 | High-lift lateral dump system for pavement/street sweepers A high-lift lateral dump system for pavement/street sweepers (20) includes a debris container (30) positioned between laterally adjacent lift assemblies (40R, 40F), each lift assembly (40R, 40F) including a vertically extending upright (42), a lift arm (4... | 04/16/2002 |
| 6070290 | High maneuverability riding turf sweeper and surface cleaning apparatus A high maneuverability riding turf sweeper (8) includes a debris-intake hood (13) that is mounted forwardly of a wheeled chassis (41) upon which the major components, including an engine (42) and a hydraulic pump (27) for powering the sweeper (8) are moun... | 06/06/2000 |
| 6052865 | Air brush vaccum-fan gutter broom A gutter broom (8) for a pavement sweeper is defined by an annular brush disc (24) having a central opening and from which a series of equi-spaced conventional bristle blocks (11) are removably secured. A downwardly depending air foil (18) is secured to t... | 04/25/2000 |
| 5884359 | Surface cleaning apparatus A pavement sweeping apparatus includes an angled, counter-rotating transverse roller broom followed by a high pressure/high velocity and full-width blast of air to remove particles too small for the broom to sweep up. The roller shaped broom has auger wou... | 03/23/1999 |
| 5361441 | Road-sweeping machine A road-sweeping machine designed to be towed behind a truck for removing road debris, including motor vehicle tires and tire fragments, includes a brush assembly that engages the roadway surface and sweeps debris from the roadway onto a first conveyor bel... | 11/08/1994 |
