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(12) Patent Application: | (11) CA 2069607 |
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(54) English Title: | SPHERICAL ROTARY PUMP |
(54) French Title: | POMPE ROTATIVE A CORPS SPHERIQUE |
Status: | Deemed Abandoned and Beyond the Period of Reinstatement - Pending Response to Notice of Disregarded Communication |
(51) International Patent Classification (IPC): |
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(72) Inventors : |
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(73) Owners : |
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(71) Applicants : |
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(74) Agent: | |
(74) Associate agent: | |
(45) Issued: | |
(22) Filed Date: | 1992-05-26 |
(41) Open to Public Inspection: | 1993-11-27 |
Availability of licence: | N/A |
Dedicated to the Public: | N/A |
(25) Language of filing: | English |
Patent Cooperation Treaty (PCT): | No |
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(30) Application Priority Data: | None |
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ABSTRACT
SPHERICAL ROTARY PUMP
In rotary pumps with positive displacement it is common to use
moving vanes within the pump to create a seal to move the
working fluid. These vanes rub against the internal surfaces
causing friction and the need for lubrication, which in turn
limits the working temperature or requires cooling. This
invention uses two rotors within a spherical housing to move
a working fluid with near positive displacement. The rotors
can rub against each other and the pump housing or can be
supported by their bearings and turn on their shafts without
actual contact and hence no friction or required lubrication.
Leakage around the sealing edges is offset by a very high
shaft speed due to a rotary and frictionless pump. Using a
pump as compressor and another as a motor an engine similar to
a turbine engine can be built but of a smaller size due to the
near-positive displacement of the pump.
Note: Claims are shown in the official language in which they were submitted.
Note: Descriptions are shown in the official language in which they were submitted.
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Description | Date |
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Inactive: Inventor deleted | 2002-05-22 |
Time Limit for Reversal Expired | 1994-11-26 |
Application Not Reinstated by Deadline | 1994-11-26 |
Deemed Abandoned - Failure to Respond to Maintenance Fee Notice | 1994-05-26 |
Inactive: Adhoc Request Documented | 1994-05-26 |
Application Published (Open to Public Inspection) | 1993-11-27 |
Abandonment Date | Reason | Reinstatement Date |
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1994-05-26 |
Note: Records showing the ownership history in alphabetical order.
Current Owners on Record |
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TREVOR ROSEBOROUGH |
Past Owners on Record |
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None |