Some of the information on this Web page has been provided by external sources. The Government of Canada is not responsible for the accuracy, reliability or currency of the information supplied by external sources. Users wishing to rely upon this information should consult directly with the source of the information. Content provided by external sources is not subject to official languages, privacy and accessibility requirements.
Any discrepancies in the text and image of the Claims and Abstract are due to differing posting times. Text of the Claims and Abstract are posted:
(12) Patent: | (11) CA 1048013 |
---|---|
(21) Application Number: | 1048013 |
(54) English Title: | PLATE-TYPE HEAT EXCHANGER |
(54) French Title: | ECHANGEUR DE CHALEUR A PLAQUES |
Status: | Term Expired - Post Grant Beyond Limit |
(51) International Patent Classification (IPC): |
|
---|---|
(72) Inventors : | |
(73) Owners : | |
(71) Applicants : | |
(74) Agent: | |
(74) Associate agent: | |
(45) Issued: | 1979-02-06 |
(22) Filed Date: | |
Availability of licence: | N/A |
Dedicated to the Public: | N/A |
(25) Language of filing: | English |
Patent Cooperation Treaty (PCT): | No |
---|
(30) Application Priority Data: | None |
---|
ABSTRACT OF THE DISCLOSURE
The present invention provides a heat exchanger
comprising a stack of heat conducting plates, wherein each plate
is provided with generally a spiral-deformation defining crests
and troughs, the troughs on one side of the plate corresponding
to the crests on the other side of the plate, and wherein the
plates are stacked such that the crests on adjacent plates abut
to divide the space between the plates into a generally spiral
channel, the ends of which communicate with connecting channels
arranged perpendicular to the planes of the plates, the channels
on opposite sides of each plate being connected for flow of
different fluids between which heat is to be exchanged.
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 1048013 was not found.
2024-08-01:As part of the Next Generation Patents (NGP) transition, the Canadian Patents Database (CPD) now contains a more detailed Event History, which replicates the Event Log of our new back-office solution.
Please note that "Inactive:" events refers to events no longer in use in our new back-office solution.
For a clearer understanding of the status of the application/patent presented on this page, the site Disclaimer , as well as the definitions for Patent , Event History , Maintenance Fee and Payment History should be consulted.
Description | Date |
---|---|
Inactive: IPC from MCD | 2006-03-11 |
Inactive: Expired (old Act Patent) latest possible expiry date | 1996-02-06 |
Grant by Issuance | 1979-02-06 |
There is no abandonment history.
Note: Records showing the ownership history in alphabetical order.
Current Owners on Record |
---|
None |
Past Owners on Record |
---|
None |