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Patent No. 5979328

Vehicular Impact Signaling Device

An apparatus for the deployment of a visible plume to alert other motorists that a proximate motor vehicle has been involved in a collision.

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Class 418/8 - Working fluid engages working member serially in circumferentially spaced working chambers


Subclass of Class 418 - Rotary expansible chamber devices
Definition: Apparatus in which there is provided a plurality of working
No. of patents: 11
Last issue date: 04/22/2008


NumberTitleIssue Date
7361002Oil pump
An oil pump to be insatalled to an engine of an automotive vehicle. The oil pump includes a section defining a suction port and a section defining a discharge port. A main unit of the oil pump has a section defining a plurality of pump chambers. Volume of each pump ...
04/22/2008
7207782Vacuum pump
A rotating vane vacuum pump has a secondary inlet (4) which permits additional suction after the primary inlet (3) has closed. ...
04/24/2007
7040872Rotary fluid machinery
Pistons (41) are slidably received in a plurality of cylinders (39) disposed radially in a rotor (31), and a plurality of vanes (42) cooperating with the pistons (41) are disposed radially in the rotor (31), so that a vane c...
05/09/2006
6123516Vacuum pump
A vacuum pump, comprising at least one pump chamber (7, 8, 23 to 26) and at least one chamber (3, 5, 27) adjoining the pump chamber. The vacuum pump is fitted with a gas ballast device to avoid damage being caused in the adjoining chambers by the gases be...
09/26/2000
6106250Lobed-rotor-type pump having a communication passage between working-fluid chambers
A lobed rotor-type pump has a drive shaft, a pump housing, an eccentric rotor journal, a rotor, three working-fluid chambers, intake and discharge ports, and a communication passage. The pump housing has a circumferentially-extending peri-trochoidal curve...
08/22/2000
5944499Rotor-type pump having a communication passage interconnecting working-fluid chambers
A rotor-type pump comprises a housing having a trochoidal curved surface and an intake port and a discharge port. A drive shaft is mounted rotatably about a first axis in the housing. A rotor having a second axis eccentric to the first axis is rotatably m...
08/31/1999
4697994Multistage discharge type rotary vacuum pump
A multistage discharge type rotary vacuum pump comprises a rotor rotably mounted within a cylinder chamber and dividing the cylinder chamber into first stage and second stage working chambers. A plurality of radially extending vanes are slidably mounted i...
10/06/1987
4560328Rotary piston machine having a plurality of chambers containing reciprocating flap pistons
The rotary piston machine contains a rotor (22) having a plurality of sector-shaped chambers (30). Each chamber (30) houses a flap piston being swivelingly mounted and reciprocated synchroneously with the rotation of the rotor (22). By each of the double ...
12/24/1985
4233003Rotary pump
A rotary pump which comprises a cylinder having two walls which cover both ends thereof to form a compressing chamber, each of the walls includes a bearing at its center and holes around the bearing to form an inlet or an outlet of the fluid, a shaft supp...
11/11/1980
4088426Sliding vane type of compressor-expander having differential eccentricity feature
A compressor-expander for use in air conditioning including a chamber of generally elliptical cross section having a compressor side and an expander side each with inlet and outlet ports. Rotatable in the chamber is a vaned rotor defining enclosed compart...
05/09/1978
4009573Rotary hot gas regenerative engine
A rotary positive displacement, hot gas regenerative engine having at least two cylindrical rotors, each of which is disposed within an elliptical stator. The longitudinal axis of one rotor is in registration with the longitudinal axis of the other rotor....
03/01/1977
 
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