Bizarre Patents
Mountable Printable Placard With Headband
A resilient headband in a shape for being mounted on the head of the user. The headband is equipped with a longitudinal slotted member for holding a placard.
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| Number | Title | Issue Date |
| 7222601 | Rotary valveless internal combustion engine A rotatably alternating air or water cooled two-stroke internal combustion engine comprising a cylindrical casing, and a rotor comprising two radially extending vanes affixed to a shaft rotatably mounted within the casing upon two end plates. Two longitudinally exte... | 05/29/2007 |
| 7137795 | Stator for eccentric spiral pump A stator for an eccentric spiral pump comprises a hollow body of an elastic material which has a casing comprising a plurality of segments extending in a longitudinal direction of the casing. Adjacent segments are interconnected along longitudinal sides at variable ... | 11/21/2006 |
| 6280165 | Scroll type fluid machine A scroll type fluid machine which can practically exhibit an appropriate meshing condition between an orbiting scroll member and an unorbiting scroll member and which can enhance the energy efficiency. A positioning means for positioning the unorbiting sc... | 08/28/2001 |
| 6074189 | Filling member-less internal-gear machine A filling member-less internal-gear unit has a casing with a bearing ring which is accommodated movably in a bore in the casing transversely with respect to its axis but non-rotatably. An internally toothed annular gear is rotatably mounted in the bearing... | 06/13/2000 |
| 6050793 | Scroll type fluid displacement machine The machine includes a fixed disk (2) comprising a spiral wall (3), a mobile disk (4) also comprising a spiral wall (5) cooperating with that of the fixed disk, and means (11, 16, 22, 23) for driving circular translation movement of the mobile disk, the m... | 04/18/2000 |
| 5256043 | Vane pump having improved vane sealing The invention concerns a vane pump for conveying bulk substances, in particular meat pastes, having a housing (4) with an inlet (6) and an outlet (10) for the bulk substance. Disposed inside the housing (4) is a rotor (14) displaying a rotatably-journaled... | 10/26/1993 |
| 4846638 | Rotary fluid machine with pivoted vanes A rotary fluid machine comprising a housing, a drive disk, a drive shaft, inner and outer cylindrical assemblies, and a plurality of vanes. The drive disk is supported within the housing for rotation about a first axis, and the drive shaft is connected to... | 07/11/1989 |
| 4645439 | Adjustable gear pump A gear pump is provided with a pair of rotatable pumping gears for pumping fluid between inlet and outlet ports formed in a gear pump housing, wherein a portion of the housing is adapted for positional adjustment to reduce internal operating clearances an... | 02/24/1987 |
| 4573890 | Vane pump with locating pins for cam ring In a vane pump, the cam ring must be fixed to an annular recessed portion of the housing in such a way that there exists no eccentricity between the cam ring and the rotor. To eliminate an eccentricity, a pair of semicircular grooves are formed on the inn... | 03/04/1986 |
| 4500270 | Gear rotor fuel pump A positive displacement fuel pump utilizing an in-line pump and armature with a flexible drive connection and spring-pressed backing plate for the pump and short cantilever mount shaft for the pump rotor.... | 02/19/1985 |
| 4313717 | Adjustable pressure extrusion pump An extrusion pump for slurries and the like of the Moineau type includes an elastomeric stator that is detachably mounted in a radially adjustable housing for radially adjusting the pressure of the stator on the rotor therein.... | 02/02/1982 |
| 4278410 | Rotatable pneumatic gear motor having a deformable adjustable sealed chamber A pneumatic rotary motor comprising a body to which is secured a bracer bushing closed by a cover. A deformable bushing is freely housed within the bracer bushing and is interposed between the cover and the casing. The bushing has a bore and two opposed l... | 07/14/1981 |
| 4036567 | Globoid worm type rotary machine In a globoid worm type compressor or expander comprising a casing, a globoid worm rotor in the casing and pinions meshing with the worm rotor, provision is made to effect sealing between the thread of the worm and each tooth of the pinions. The arrangemen... | 07/19/1977 |
| 4028023 | Fluid operable rotary piston device A fluid operable rotary piston device having a housing with gas inlet and tlet means and a hollow cylinder rotatable therein having gas inlet and gas outlet ports which communicate with the gas inlet and outlet means during rotation of the cylinder. A rot... | 06/07/1977 |
| 4018191 | Rotary internal combustion engine A rotary internal combustion engine that includes a housing that defines an elliptical cavity in which a rotor is disposed. The rotor slidably supports a number of circumferentially spaced, radially disposed blades, with each pair of blades defining a cha... | 04/19/1977 |
| 4013388 | Support means for floating rotary ring member Bearing equipped mounting members for mounting a rotor within a rotor chamber of a rotary fluid pressure displacement device. The rotor chamber has axially spaced end walls, and a peripheral wall including a pair of diametrically opposed arcuate walls and... | 03/22/1977 |
