Canadian Patents Database / Patent 2329493 Summary

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(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
(51) International Patent Classification (IPC):
  • B29C 47/88 (2006.01)
  • A63C 19/10 (2006.01)
  • C08J 5/00 (2006.01)
  • C08L 23/06 (2006.01)
  • C08L 31/04 (2006.01)
(72) Inventors (Country):
  • STILLWELL, ROBERT (United States of America)
  • RZECHULA, MICHAEL (United States of America)
(73) Owners (Country):
  • INNOVATIVE CONCEPTS ENTERPRISES (United States of America)
(71) Applicants (Country):
  • INNOVATIVE CONCEPTS ENTERPRISES (United States of America)
(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:
Application No. Country Date
08/722,489 United States of America 1996-09-27

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.


Note: Claims are shown in the official language in which they were submitted.



18
The embodiments of the invention in which an exclusive
property of privilege is claimed are defined as follows:

1. A method of manufacturing a tube comprising 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.
2. The method according to claim 1, the step of preparing a composition using
ethylene vinyl acetate including the step of combining ethylene vinyl acetate
and polyethylene.
3. The method according to claim 2, the step of preparing a composition
including
the step of combining approximately between 15 to 25% by weight of ethylene
vinyl acetate and
approximately 75 to 85% by weight of polyethylene.
4. The method according to claim 3, the step of providing a composition
including
the step of combining approximately 18% by weight of ethylene vinyl acetate
and approximately
82% by weight of polyethylene.
5. The method according to claim 1, the step of cooling the tube including the
step
of passing the tube through a distance on the order of 40 feet through a
cooling tank so that the
tube exiting the cooling tank is substantially set in a substantially straight
configuration.



19
6. The method according to claim 1, further comprising the step of coiling the
tube
for packaging such that the minimum effective diameter of the coiled tube is
2.5 feet.
7. The method according to claim 1, in combination with the steps of:
connecting the tube to means for removing thermal energy from a coolant;
placing the tube in thermal communication with a medium to be frozen;
passing a coolant through the tube to transport thermal energy from the medium
to the means for removing thermal energy from a coolant.


A single figure which represents the drawing illustrating the invention.

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.

Admin Status

Title Date
(22) Filed 1997-09-24
(41) Open to Public Inspection 1998-03-27
Examination Requested 2001-01-09
Dead Application 2004-09-24

Payment History

Fee Type Anniversary Year Due Date Amount Paid Paid Date
Request for Examination $200.00 2001-01-09
Registration of Documents $50.00 2001-01-09
Filing $150.00 2001-01-09
Maintenance Fee - Application - New Act 2 1999-09-24 $50.00 2001-01-09
Maintenance Fee - Application - New Act 3 2000-09-25 $50.00 2001-01-09
Reinstatement: Failure to Pay Application Maintenance Fees $200.00 2002-09-24
Maintenance Fee - Application - New Act 4 2001-09-24 $50.00 2002-09-24
Maintenance Fee - Application - New Act 5 2002-09-24 $75.00 2002-09-24

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Document
Description
Date
(yyyy-mm-dd)
Number of pages Size of Image (KB)
Representative Drawing 2001-03-09 1 11
Abstract 2001-01-09 1 55
Description 2001-01-09 17 731
Claims 2001-01-09 2 48
Drawings 2001-01-09 9 242
Cover Page 2001-03-09 2 76
Correspondence 2001-02-12 1 41
Correspondence 2001-02-15 1 13
Fees 2002-09-24 1 42