I claim:
1. A sealing apparatus for sealing spaced-apart produts which are enclosed by a film comprising:
a frame, the frame providing a path along which spaced-apart products can move,
a sealing support structure mounted on the frame for movement along said path,
upper and lower sealing units mounted on the sealing support structure for movement toward and away from each other in a direction which is generally perpendicular to said path,
means for moving the upper and lower sealing units toward each other to close the sealing units whereby a film between the sealing units can be sealed and for moving the upper and lower sealing units away from each to open the sealing units, and
means for reciprocating the sealing support along said path between first and second positions.
2. The apparatus of claim 1 in which the sealing support structure is mounted on the frame for linear reciprocating movement along said path.
3. The apparatus of claim 2 in which the upper and lower sealing units are mounted on the sealing support structure for linear movement toward and away from each other.
4. The apparatus of claim 1 in which the upper and lower sealing units are mounted on the sealing support structure for linear movement toward and away from each other.
5. The apparatus of claim 1 in which said means for moving the upper and lower sealing units includes a servo motor.
6. The apparatus of claim 5 in which the means for moving the upper and lower sealing units includes a belt drive which is driven by said servo motor.
7. The apparatus of claim 1 in which said means for reciprocating the sealing support structure includes a crank arm rotatably mounted on the frame and a link connecting the crank arm and the sealing support structure.
8. The apparatus of claim 7 including a servo motor for rotating the crank arm.
9. The apparatus of claim 7 including a linear bearing between the sealing support structure and the frame for supporting the sealing support structure for linear movement along said path.
10. The apparatus of claim 9 including a linear guide on the sealing support structure, the upper and lower sealing units being mounted on the linear guide for linear movement toward and away from each other.
11. The apparatus of claim 7 including a linear guide on the sealing support structure and linear bearings on the upper and lower sealing units for supporting the sealing units for linear movement along said path.
12. The apparatus of claim 1 including a linear guide on the frame and a linear bearing on the sealing support structure for supporting the sealing support structure for linear movement along said path.
13. The apparatus of claim 1 in which said means for reciprocating the sealing support structure includes a belt drive mounted on the frame and connected to the sealing support structure.
14. The structure of claim 1 including a linear guide on the frame which extends in the direction of said path and a linear bearing on the sealing support structure for supporting the sealing support structure for linear movement along said path.
15. The apparatus of claim 1 including a pair of linear guides on the sealing support structure which extend generally perpendicularly to said path, a pair of bearings on each of the upper and lower sealing units slidably mounted on the linear guides for linear movement toward and away from each other.
16. The apparatus of claim 15 including upper and lower cross members connected to said pair of linear guides, and means for moving said upper and lower cross members and said linear guides in a direction which is generally perpendicular to said path.
17. The apparatus of claim 16 in which said linear guides are slidably mounted in said sealing support structure.
18. The apparatus of claim 18 in which said means for moving includes a threaded shaft connected to one of the upper and lower cross members and extending through said sealing support structure whereby rotation of the threaded shaft moves said upper and lower cross members and said linear guides relative to said sealing support structure.
19. The apparatus of claim 16 including upper pulleys rotatably mounted on the upper cross member and lower pulleys rotatably mounted on the lower cross member, a pair of drive belts extending over the upper and lower pulleys, and means for rotating the upper or lower pulleys to move the drive belts, the upper and lower sealing units being connected to the drive belts for movement with the drive belts.
20. The apparatus of claim 15 including upper pulleys rotatably mounted on the upper cross member and lower pulleys rotatably mounted on the lower cross member, a pair of drive belts extending over the upper and lower pulleys, and means for rotating the upper or lower pulleys to move the drive belts, the upper and lower sealing units being connected to the drive belts for movement with the drive belts.
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 machine device comprising:
a cryogenic vessel with coolant,
a heat source,
a hot heat exchanger,
a first stage reversible heat conversion device,
a cold heat exchanger,
a second stage pressure conversion device consisting of at least one expander turbine coupled to an electric generator
2. The device as claimed in claim 1, wherein the heat conversion device is a thermoelectric element
3. The device as claimed in claim 1, wherein the heat conversion device is a thermoacoustic engine coupled to an electric generator
4. The device as claimed in claim 1, wherein the heat conversion device is a Stirling engine coupled to an electric generator
5. The device as claimed in claim 1, wherein the cold heat exchanger serves as an electric coil for the first stage generator
6. The device as claimed in claim 1, wherein the hot heat exchanger serves as an electric coil for the first stage generator
7. The device as claimed in claim 1, wherein an ambient air heat exchanger is introduced between the cold heat exchanger and the second stage pressure conversion device.
8. The device as claimed in claim 7, wherein said ambient air heat exchanger is a no frost multiple pass heat exchanger.
9. The device as claimed in claim 1, wherein the electric generator coils are made of the high temperature superconducting material.
10. The device as claimed in claim 1, wherein the expander turbine casing is made of the material with high thermal conductivity.
11. The device as claimed in claim 1, wherein the coolant is the liquid nitrogen
12. The device as claimed in claim 1, wherein the coolant is the liquid argon
13. The device as claimed in claim 1 wherein said heat source is a person.