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(12) Patent: | (11) CA 1129925 |
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(21) Application Number: | 1129925 |
(54) English Title: | A.C. OPERATED OSCILLATING ARMATURE AQUARIUM PUMP |
(54) French Title: | POMPE A ARMATURE OSCILLANTE POUR AQUARIUM ALIMENTEE EN COURANT ALTERNATIF |
Status: | Term Expired - Post Grant |
(51) International Patent Classification (IPC): |
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(72) Inventors : |
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(73) Owners : | |
(71) Applicants : | |
(74) Agent: | SMART & BIGGAR LP |
(74) Associate agent: | |
(45) Issued: | 1982-08-17 |
(22) Filed Date: | 1980-02-01 |
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: | ||||||
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ABSTRACT
An oscillating armature pump for liquids operated
by alternating current and having a housing defining a
pump cavity, with a. c. coils mounted laterally of the
cavity on a block. The oscillating armature is mounted
on a plate spring which is secured to the pump housing,
and the armature is also provided with a resiliently
flexible plate for executing the pumping movement. The
plate spring is substantially U- or Omega-shaped, so
that it takes up a minimum space, and also provides a
favorable transition between the active oscillating end
of the spring plate and the static end of the plate se-
cured to the housing.
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.
Sorry, the representative drawing for patent document number 1129925 was not found.
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Description | Date |
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Inactive: IPC from MCD | 2006-03-11 |
Inactive: IPC from MCD | 2006-03-11 |
Inactive: Expired (old Act Patent) latest possible expiry date | 1999-08-17 |
Grant by Issuance | 1982-08-17 |
There is no abandonment history.
Note: Records showing the ownership history in alphabetical order.
Current Owners on Record |
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None |
Past Owners on Record |
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RUDOLF PANTHOFER |