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Patent Summary
| (12) Patent Application: | (11) CA 2329493 |
|---|---|
| (54) English Title: | METHOD AND SYSTEM FOR CREATING AND MAINTAINING A FROZEN SURFACE |
| (54) French Title: | METHODE ET SYSTEME SERVANT A PRODUIRE UNE SURFACE GLACEE ET A LA MAINTENIR DANS CET ETAT |
English Abstract
A method of manufacturing a tube includes the steps of preparing a composition
using ethylene vinyl acetate, extruding the composition to form a tube, and
cooling the tube with
the tube in a substantially straight configuration so that the tube is
substantially set in a
substantially straight configuration. Moreover, a system for creating a frozen
surface on a
medium includes a mechanism for exchanging thermal energy between a medium and
a coolant,
a mechanism for removing thermal energy from a coolant, and a mechanism for
transporting a
coolant between the mechanism for exchanging thermal energy between a medium
and a coolant
and the mechanism for removing thermal energy from a coolant. The mechanism
for transporting
a coolant includes first and second pipes and mechanism for releasable
connecting the first pipe
to the second pipe so as to prevent the first pipe from moving axially
relative to the second pipe
in a first operational state, and to allow the first pipe to be moved axially
relative to the second
pipe in a second operational state. Additionally, a system for creating and
maintaining a frozen
surface en a medium includes a mechanism for exchanging thermal energy between
a medium and
a coolant, the mechanism for exchanging thermal energy between a medium and a
coolant having
a substantially uniform cross-sectional area for passing a coolant
therethrough. The system also
includes a mechanism for removing thermal energy from a coolant. The system
further includes
a mechanism for transporting a coolant between the mechanism for exchanging
thermal energy
between a medium and a coolant and the mechanism for removing thermal energy
from a coolant.
The mechanism for transporting a coolant is connected to the mechanism for
exchanging thermal
energy between a medium and a coolant so that substantially all of a coolant
flowing from the
mechanism for transporting a coolant to the mechanism for exchanging thermal
energy between
a medium and a coolant flows directly from the mechanism for transporting a
coolant into the
mechanism for exchanging thermal energy between a medium and a coolant.
French Abstract
Patent Details
| (51) International Patent Classification (IPC): |
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| (72) Inventors (Country): |
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| (73) Owners (Country): |
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| (71) Applicants (Country): |
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| (74) Agent: | FINLAYSON & SINGLEHURST |
| (45) Issued: | |
| (22) Filed Date: | 1997-09-24 |
| (41) Open to Public Inspection: | 1998-03-27 |
| Examination requested: | 2001-01-09 |
| (30) Availability of licence: | N/A |
| (30) Language of filing: | English |
| (30) Application Priority Data: | |||||||
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| View Patent Image | Download Patent Image in PDF Format | Size of Image (KB) | Number of Pages |
|---|---|---|---|
| Cover Page | Cover Page | 76 | 2 |
| Abstract | Abstract | 55 | 1 |
| Claims | Claims | 48 | 2 |
| Description | Description | 731 | 17 |
| Drawings | Drawings | 242 | 9 |
| Representative Drawing | Representative Drawing | 11 | 1 |
