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(12) Patent: | (11) CA 1269813 |
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(21) Application Number: | 549844 |
(54) English Title: | RACK AND PINION GEAR STACK MOLD CONTROL |
(54) French Title: | COMMANDE A CREMAILLERE ET PIGNON POUR MOULE EN EMPILADE |
Status: | Expired |
(52) Canadian Patent Classification (CPC): |
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(51) International Patent Classification (IPC): |
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(72) Inventors : |
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(73) Owners : |
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(71) Applicants : | |
(74) Agent: | JOHNSON, DOUGLAS S. Q.C. |
(74) Associate agent: | |
(45) Issued: | 1990-06-05 |
(22) Filed Date: | 1987-10-21 |
Availability of licence: | 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 OF THE DISCLOSURE
The present invention provides in a stack mold
comprising a center mold part, first and second outside
mold parts movable at both sides of the center mold part,
a rack and pinion gear arrangement to move the outside
mold parts. The rack and pinion gear arrangement
comprises a plurality of pinion gears located at the
center mold part and including a drive gear and first and
second follower gears driven off the drive gear. Also
provided are first and second free ended racks extending
in opposite directions from the first and second outside
mold parts respectively in engagement with the first and
second follower gears. These follower gears reach above
and below the drive gear and the first follower gear is
offset to the side of the drive gear opposite that to
which the free end of the first rack extends while the
second follower gear is offset to the side of the drive
gear opposite that to which the free end of the second
rack extends.
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.
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 , Administrative Status , Maintenance Fee and Payment History should be consulted.
Title | Date |
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Forecasted Issue Date | 1990-06-05 |
(22) Filed | 1987-10-21 |
(45) Issued | 1990-06-05 |
Expired | 2007-10-21 |
There is no abandonment history.
Note: Records showing the ownership history in alphabetical order.
Current Owners on Record |
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IZON INDUSTRIES LTD. |
Past Owners on Record |
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1589711 ONTARIO INC. |
IZON INDUSTRIES INCORPORATED |
RATHBUN, JOHN |
SHEFFIELD, JAMES |