Canadian Patents Database / Patent 2216341 Summary

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(12) Patent: (11) CA 2216341
(54) English Title: METHOD AND SYSTEM FOR CREATING AND MAINTAINING A FROZEN SURFACE
(54) French Title: METHODE ET APPAREIL SERVANT A CREER ET MAINTENIR UNE SURFACE GELEE
(51) International Patent Classification (IPC):
  • B29C 47/88 (2006.01)
  • A63C 19/10 (2006.01)
(72) Inventors (Country):
  • RZECHULA, MICHAEL (United States of America)
  • STILLWELL, ROBERT (United States of America)
(73) Owners (Country):
  • INNOVATIVE CONCEPTS ENTERPRISES (United States of America)
(71) Applicants (Country):
  • RZECHULA, MICHAEL (United States of America)
  • STILLWELL, ROBERT (United States of America)
(74) Agent: FINLAYSON & SINGLEHURST
(45) Issued: 2001-03-06
(22) Filed Date: 1997-09-24
(41) Open to Public Inspection: 1998-03-27
Examination requested: 1998-01-16
(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 on 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

Méthode de fabrication de tube. La méthode comporte les étapes suivantes : préparation d'une composition au moyen d'acétate de vinyle d'éthylène, extrusion de la composition pour former un tube et refroidissement du tube dans une configuration très droite, afin d'obtenir un tube très droit. De plus, un système servant à créer une surface gelée sur un médium comprend un mécanisme d'échange d'énergie thermique entre un médium et un fluide de refroidissement, un mécanisme permettant d'extraire l'énergie thermique du fluide de refroidissement et un mécanisme de transport d'un fluide de refroidissement entre le mécanisme d'échange de l'énergie thermique entre le médiun et le fluide et le mécanisme d'extraction de l'énergie thermique du fluide de refroidissement. Le mécanisme de transport du liquide de refroidissement comprend un premier et un deuxième conduits et un dispositif de raccordement désengageable des deux conduits afin d'empêcher le premier conduit de se déplacer sur un axe axial par rapport au deuxième dans une première étape d'exploitation et, également, pour permettre à ce premier conduit de se déplacer axialement par rapport au deuxième dans une deuxième étape d'exploitation. De plus, un système pour créer et maintenir une surface gelée sur un médium comprend un mécanisme d'échange de l'énergie entre un medium et un fluide de refroidissement; ce mécanisme d'échange présente une aire transversale sensiblement uniforme sur laquelle passe un fluide de refroidissement. Le système comprend également un mécanisme d'extraction de l'énergie thermique du fluide de refroidissement. Le système comprend en outre un mécanisme de transport d'un fluide de refroidissement entre le mécanisme d'échange de l'énergie thermique entre un médium et un fluide de refroidissement et le mécanisme d'extraction de l'énergie thermique du fluide de refroidissement. Le mécanisme de transport du fluide de refroidissement est relié au mécanisme d'échange d'énergie thermique entre un médium et un fluide de refroidissement de sorte que essentiellement tout le fluide qui est acheminé par le mécanisme de transport d'un fluide de refroidissement jusqu'au mécanisme d'échange d'énergie thermique entre un médium et un fluide de refroidissement, passe directement du mécanisme de transport d'un fluide de refroidissement au mécanisme d'échange d'énergie thermique entre un médium et un fluide de refroidissement.


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


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WHAT IS CLAIMED IS:

1. A system for creating a frozen surface on a medium, the system comprising:
means for exchanging thermal energy between a medium and a coolant;
means for removing thermal energy from a coolant; and
means for transporting a coolant between the means for exchanging thermal
energy between a medium and a coolant and the means for removing thermal
energy from a
coolant,
the means for transporting a coolant including first and second pipes and
means
for releasably 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.
2. The system according to claim 1, wherein:
the first pipe has an outer surface with an effective outer diameter and a
first
groove defined in the outer surface,
the second pipe has an inner surface with an effective inner diameter
substantially equal to the effective outer diameter of the first pipe and a
second groove
defined in the inner surface,
the first pipe is disposed within the second pipe in the first operational
state so
that the first and second grooves are aligned axially to define a passage, and
the means for releasably connecting the first pipe to the second pipe to
prevent
the first pipe from moving axially relative to the second pipe comprises a
strip of flexible
material disposed in the passage to prevent the axial motion of the first and
second pipes.
3. The system according to claim 2, further comprising means for preventing
the
first pipe from moving axially relative to the second pipe in the first
operational state and for
preventing a coolant from passing between the effective inner and effective
outer diameters
in the first operational state.



19

4. The system according to claim 3, wherein:
the second pipe has a third groove defined in the inner surface, and
the means for preventing the first pipe from moving axially relative to the
second pipe in the first operational state and for preventing a coolant from
passing between
the effective inner and effective outer diameters in the first operational
state includes a ring
of resilient material disposed within the third groove and against the outer
surface of the first
pipe such that the ring of resilient material is at least partially deformed.
5. The system according to claim 4, in combination with a tank containing a
medium to be frozen, the means for exchanging thermal energy between a medium
and a
coolant disposed within the tank and in thermal communication with the medium
contained
within the tank.
6. The system according to claim 5, wherein the medium is an aqueous medium.
7. The system according to claim 1, in combination with a supply of coolant in
fluid communication with the means for transporting a coolant between the
means for
exchanging thermal energy between a medium and a coolant and the means for
removing
thermal energy from a coolant.
8. The system according to claim 7, wherein the coolant comprises an alcohol
selected from the group of alcohols consisting of ethylene glycol and
propylene glycol.
9. The system according to claim 8, wherein the coolant comprises a mixture of
an alcohol selected from the group of alcohols consisting of ethylene glycol
and propylene
glycol and water in a ratio of between 45:55 and 55:45.
10. A system for creating and maintaining a frozen surface on a medium, the
system comprising:
means for exchanging thermal energy between a medium and a coolant,



20

the means for exchanging thermal energy between a medium and a coolant
having a substantially uniform cross-sectional area for passing a coolant
therethrough;
means for removing thermal energy from a coolant; and
means for transporting a coolant between the means for exchanging thermal
energy between a medium and a coolant and the means for removing thermal
energy from a
coolant,
the means for transporting a coolant connected to the means for exchanging
thermal energy between a medium and a coolant so that substantially all of a
coolant flowing
from the means for transporting a coolant to the means for exchanging thermal
energy
between a medium and a coolant flows directly from the means for transporting
a coolant into
the means for exchanging thermal energy between a medium and a coolant.
11. A system for creating a frozen surface on a medium, the system comprising:
means for exchanging thermal energy between a medium and a coolant;
means for removing thermal energy from a coolant; and
means for transporting a coolant between the means for exchanging thermal
energy between a medium and a coolant and the means for removing thermal
energy from a
coolant,
the means for transporting a coolant including a header pipe assembly in fluid
communication with the means for removing thermal energy from a coolant, the
header pipe
assembly comprising first and second pipes and means for releasably 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, a subheader pipe in fluid
communication with the
means for exchanging thermal energy between a medium and a coolant, and means
for
releasably connecting the header pipe to the subheader pipe.
12. The system according to claim 11, wherein:
the first pipe has an outer surface with an effective outer diameter and a
first
groove defined in the outer surface,



21

the second pipe has an inner surface with an effective inner diameter
substantially equal to the effective outer diameter of the first pipe and a
second groove
defined in the inner surface,
the first pipe is disposed within the second pipe in the first operational
state so
that the first and second grooves are aligned axially to define a passage, and
the means for releasably connecting the first pipe to the second pipe to
prevent
the first pipe from moving axially relative to the second pipe comprises a
strip of flexible
material disposed in the passage to prevent the axial motion of the first and
second pipes.
13. The system according to claim 12, further comprising means for preventing
the
first pipe from moving axially relative to the second pipe in the first
operational state and
for preventing a coolant from passing between the effective inner and
effective outer
diameters in the first operational state.
14. The system according to claim 13, wherein
the second pipe has a third groove defined in the inner surface, and
the means for preventing the first pipe from moving axially relative to the
second pipe in the first operational state and for preventing a coolant from
passing between
the effective inner and effective outer diameters in the first operational
state includes a ring
of resilient material disposed within the third groove and against the outer
surface of the first
pipe such that the ring of resilient material is a least partially deformed.
15. The system according to claim 14, in combination with a tank containing a
medium to be frozen, the means for exchanging thermal energy between a medium
and a
coolant disposed within the tank and in thermal communication with the medium
contained
within the tank.
16. The system according to claim 15, wherein the medium is an aqueous medium.



22

17. The system according to claim 11, in combination with a supply of coolant
in
fluid communication with the means for transporting a coolant between the
means for
exchanging thermal energy between a medium and a coolant and the means for
removing
thermal energy from a coolant.
18. The system according to claim 17, wherein the coolant comprises an alcohol
selected from the group of alcohols consisting of ethylene glycol and
propylene glycol.
19. The system according to claim 18, wherein the coolant comprises a mixture
of
an alcohol selected from the group of alcohols consisting of ethylene glycol
and propylene
glycol and water in a ratio of between 45:55 and 55:45.
20. A system for creating a frozen surface on a medium, the system comprising:
means for exchanging thermal energy between a medium and a coolant,
means for removing thermal energy from a coolant;
means for transporting a coolant between the means for exchanging thermal
energy between a medium and a coolant and the means for removing thermal
energy from a
coolant,
the means for transporting a coolant including a header pipe assembly in fluid
communication with the means for removing thermal energy from a coolant and a
subheader
pipe in fluid communication with the header pipe assembly and the means for
exchanging
thermal energy between a medium and a coolant such that coolant from the
header pipe
assembly must flow through the subheader pipe to pass through the means for
exchanging
thermal energy between a medium and a coolant,
the header pipe comprising first and second pipes and means for releasably
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,
the subheader pipe having an axis and a wall with a first opening defined
therein parallel to the axis, the first opening having a first area; and



23

means for connecting the means for transporting a coolant to the means for
exchanging thermal energy between a medium and a coolant so that substantially
all of a
coolant flowing from the means for transporting a coolant to the means for
exchanging
thermal energy between a medium and a coolant flows directly from the means
for
transporting a coolant into the means for exchanging thermal energy between a
medium and
a coolant,
the means for connecting the means for transporting a coolant to the means for
exchanging thermal energy between a coolant and a medium being attached
between the
subheader pipe and the means for exchanging thermal energy between a medium
and a
coolant,
the means for connecting the means for transporting a coolant to the means for
exchanging thermal energy between a coolant and a medium comprising a
connector pipe with
a seat which fits flush with the subheader pipe wall with the seat attached to
the subheader
pipe wall such that no portion of the connector pipe extends into the
subheader pipe through
the first opening, the seat having a second opening aligned with the first
opening and having
a second area at least equal to the first area.



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
Examination Requested 1998-01-16
(41) Open to Public Inspection 1998-03-27
(45) Issued 2001-03-06
Lapsed 2004-09-24

Payment History

Fee Type Anniversary Year Due Date Amount Paid Paid Date
Filing $150.00 1997-09-24
Request for Examination $200.00 1998-01-16
Registration of Documents $100.00 1998-01-16
Reinstatement: Failure to Pay Application Maintenance Fees $200.00 1999-11-22
Maintenance Fee - Application - New Act 2 1999-09-24 $50.00 1999-11-22
Maintenance Fee - Application - New Act 3 2000-09-25 $50.00 2000-09-13
Final $150.00 2000-12-06
Maintenance Fee - Patent - New Act 4 2001-09-24 $250.00 2002-09-24
Maintenance Fee - Patent - New Act 5 2002-09-24 $75.00 2002-09-24

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Description 1997-09-24 17 729
Claims 1997-09-24 5 155
Abstract 1997-09-24 1 52
Drawings 1997-09-24 9 216
Cover Page 1998-04-07 2 117
Claims 2000-05-08 6 266
Cover Page 2001-01-24 2 119
Representative Drawing 1998-04-07 1 10
Representative Drawing 2001-01-24 1 11
Fees 1999-11-22 1 37
Prosecution-Amendment 2000-01-17 2 3
Prosecution-Amendment 1998-01-15 1 47
Prosecution-Amendment 1998-01-16 1 38
Prosecution-Amendment 1998-04-02 2 34
Prosecution-Amendment 2000-05-08 8 308
Correspondence 2000-12-06 1 33
Fees 2002-09-24 1 43