1. A hair straightening iron for styling hair, said iron comprising
a first elongated member having a first heatable plate thereon and having a longitudinal axis;
a second elongated member having a second heatable plate thereon, said second heatable plate facing said first heatable plate;
a hinge at which the first member is joined to the second member in a pivotable relationship so that said first heatable plate and said second heatable plate can be opened and closed away from and toward each other, respectively; and
a set of ridges extending orthogonally from said first heatable plate, each ridge comprising a length L, a width W, and a height H wherein L is greater than H and wherein each ridge is oriented with L perpendicular to said longitudinal axis.
2. An iron according to claim 1, wherein
said ridges are arranged in a single row extending parallel to said longitudinal axis.
3. An iron according to claim 1, further comprising
a ridge base from which said ridges extend, said base being located beneath said lower plate and said ridges pass through corresponding opening in said lower plate.
4. An iron according to claim 3, wherein
said base is moveable in a direction perpendicular to said lower plate so that, when the base is moved, the height at which the ridges protrude past said lower plate is adjustable.
5. An iron according to claim 4, further comprising
at least one wedge surface attached to said base; and
a wedge plate having a wedge contact surface, said wedge plate being adapted to slide relative to said base so that said wedge contact surface engages and disengages said wedge surface of said base to cause said base to move in a direction perpendicular to said lower plate.
6. An iron according to claim 4, further comprising
a plurality of wedge surfaces attached to said base; and
a wedge plate having a wedge contact surface, said wedge plate being adapted to selectively slide relative to said base so that said wedge contact surface selectively engages and disengages one of said wedge surfaces of said base to cause said base to selectively move a desired amount in a direction perpendicular to said lower plate.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A heat exchanger plate for use in a three circuit heat exchanger assembly, where the plate comprises a first distribution area having three port holes, a heat exchange area and a second distribution area having three port holes, where the plate comprises a corrugated pattern having ridges valleys, wherein the central port hole of the first distribution area is positioned at a vertical distance from a first short end of the plate such that a fluid passage is obtainable between the central port hole and the first short end of the plate when two plates are stacked to form a fluid channel there between.
2. The plate according to claim 1, wherein the central port hole of the second distribution area is positioned at a vertical distance from a second short end of the plate such that a fluid passage is obtainable between the central port hole and the second short end of the plate when two plates are stacked to form a fluid channel there between.
3. The plate according to claim 1 or 2, wherein a port hole at a first corner of the plate is provided with a flat, ring-shaped bypass section adapted to form a refrigerant bypass passage around a port when two plates are stacked to form a refrigerant fluid channel between the plates.
4. The plate according to claim 3, wherein a water bypass section is provided at a second corner of the plate such that a water passage is obtainable between two adjacent bypass sections when two plates are stacked to form a water channel between the plates.
5. The plate according to claim 1, wherein the first distribution area exhibits a chevron shape having a first layout, the second distribution area exhibits a chevron shape having a second layout and where the heat exchange area exhibits a chevron shape having a third layout, where the chevron shape of the first layout is directed in a first angular direction and the chevron shape of the second layout is directed in the opposite angular direction.
6. The plate according to claim 5, wherein the chevron shape of the third layout is directed in the same angular direction as the chevron shape of the first layout.
7. The plate according to claim 5, wherein the chevron shape of the third layout has more direction changes than the first and the second layout.
8. The plate according to claim 5, wherein the first and the second chevron shape resembles a V and the third chevron shape resembles a W.
9. The plate according to claim 1, wherein a lower distribution groove is provided between the first distribution area and the heat exchange area such that a lower distribution path is obtainable between two adjacent lower distribution grooves when two plates are stacked to form a fluid channel between the plates.
10. The plate according to claim wherein at least one of the lower distribution grooves comprises at least one restriction area such that a flow restriction is obtained in the lower distribution path.
11. The plate according to claim 9, wherein an upper distribution groove is provided between the heat exchange area and the second distribution area such that an upper distribution path is obtainable between two adjacent upper distribution grooves when two plates are stacked to form a fluid channel between the plates.
12. A heat exchanger assembly, comprising four plates according to claim 1 or 2, wherein the first plate, the second plate, the third plate and the fourth plate differ from each other.
13. The heat exchanger assembly according to claim 12, where a first refrigerant channel is provided between the first plate and the second plate, a water channel is provided between the second plate and the third plate and a second refrigerant channel is provided between the third plate and the fourth plate, and where each fluid channel comprises a first distribution passage provided between two adjacent first distribution areas, a heat exchange passage provided between two adjacent heat exchange areas and a second distribution passage provided between two adjacent second distribution areas, wherein a horizontal passage is provided in the first distribution passage between the central water port and the neighbouring short end of the assembly.
14. The heat exchanger assembly according to claim 12, wherein a horizontal passage is provided in the second distribution passage between the central water port and the neighbouring short end of the assembly.
15. The heat exchanger assembly according to claim 12, wherein a water bypass passage is provided in a water distribution passage between a refrigerant port and a corner of the assembly.
16. The heat exchanger assembly according to claim 12, wherein a refrigerant bypass passage is provided around a refrigerant port in a refrigerant distribution passage.
17. The heat exchanger assembly according to claim 12, wherein an active inlet port is provided with an inlet nozzle and a second active inlet port is provided with an inlet nozzle, where the angles of the inlet nozzles are between 0 and 180 degrees relative to a vertical axis and where the inlet nozzles point towards the central vertical axis of the assembly.
18. The heat exchanger assembly according to claim 17, wherein the angles of the inlet nozzles are between 90 and 150 degrees.
19. The heat exchanger assembly according to claim 12, wherein a lower distribution path is provided between a lower distribution passage and a heat exchange passage.
20. The heat exchanger assembly according to claim 12, wherein an upper distribution path is provided between a heat exchange passage and an upper distribution passage.
21. The heat exchanger assembly according to claim 12, wherein the heat exchanger plates are joined by gluing, soldering, brazing, bonding or welding.
22. A three-circuit heat exchanger, comprising a plurality of heat exchanger assemblies according to claim 12, and further comprising a front plate and a back plate.