1461136460-027a29fd-591d-41a1-9cc4-c1565504e738

1. A method of instant clearing electronic lock after key-cipher use based on a system comprising an electronic key main body, a lock main body, a lock operation unit, wherein the method comprises the steps of:
a. providing a human characteristic sensor, a key micro processing unit, a cipher generating unit, a cipher temporary storage unit, and a key cipher data transmitting unit on said electronic key main body;
b. providing a lock cipher data transmission unit, a lock controlling unit, and a user database on said lock main body;
c. collecting every user’s human characteristic information by said human characteristic sensor first, generating according cipher by said cipher generating unit, storing said cipher in said cipher temporary storage unit temporarily, transmitting said cipher data to said lock cipher data transmission unit by said key cipher data transmission unit, verifying said cipher’s registration, saving in said user database, clearing said temporary cipher storage unit after the human body is disconnected from said human characteristic sensor;
d. collecting user’s human characteristic information by said human characteristic sensor when the registered user is using said electronic key main body to open the lock, generating said cipher again by said cipher generating unit, storing said cipher temporarily in said cipher temporary storage unit, transmitting said cipher data to said lock cipher data transmission unit through said key cipher data transmission unit, checking said cipher data on said user database by said lock controlling unit on said lock main body to confirm if there is a same record; and
e. sending command to said lock operation element to open the lock if a same record is found in said database by said lock controlling unit, or delivering a warning message and saving an error message by said lock controlling unit if no same record is found.
2. The method, as recited in claim 1, wherein said cipher generating unit comprises a main cipher arithmetic unit and an additional cipher arithmetic unit, wherein the step c also comprises the steps of:
a. processing human characteristic information to generate multiple bytes main cipher by said main cipher arithmetic unit;
b. recalling additional cipher from said additional cipher arithmetic unit by said key microprocessor unit, combining said main cipher and said additional cipher, storing said combined cipher in said cipher temporary storage unit;
c. checking if the physical body is disconnected with said human characteristic sensor according to the process of operation by said key microprocessor unit, deciding the time delay to clear said cipher temporary storage unit.
3. The method, as recited in claim 1, wherein said electronic key main body also comprises a key keypad which is controlled by said key microprocessor unit to collect said additional cipher, store it in said additional cipher arithmetic unit said, and a key display unit which is controlled by said key cipher microprocessor unit to display the operational information.
4. The method, as recited in claim 1, wherein said lock main body also comprises a lock keypad which is controlled by a lock microprocessor of said lock controlling unit to input operation command, a lock display unit which is controlled by said lock controlling unit to display operation results and warning message, and a network communication interface unit which is controlled by said lock controlling unit to accept network system command and exchange data with the network.
5. The method, as recited in claim 1, wherein the transmission of said cipher data from said key cipher data transmission unit to said lock cipher data transmission unit 90 is realized by a key contact set on said key main body and a lock contact set on said lock main body.
6. The method, as recited in claim 1, wherein the transmission of said cipher data from said key cipher data transmission unit to said lock cipher data transmission unit 90 is realized by a key transceiver on said key main body and a lock transceiver on said lock main body.
7. The method, as recited in claim 1, wherein said human characteristic sensor includes a finger print sensor, a body temperature sensor, a sweat sensor, or an iris sensor.
8. An electronic lock system which clears cipher key instantly after the cipher key is used, comprising: an electronic key main body; a lock main body; and a lock operation element, wherein said electronic key main body also comprises a human characteristic sensor, a key microprocessor unit, a cipher generating unit, a cipher temporary storage unit, a cipher data transmission unit, and a key power, wherein said human characteristic sensor is electrically connected with said key microprocessor unit and said cipher generating unit, said cipher temporary storage unit is electrically connected with said cipher generating unit and said key cipher data transmission unit, wherein said lock main body comprises a lock cipher data transmission unit, a lock controlling unit, and a user database, wherein said lock controlling unit is electrically connected with said lock cipher data transmission unit, said user database, and said lock operation element.
9. The electronic lock system which clears cipher key instantly after the cipher key is used of claim 8, wherein said electronic key main body also comprises a key keypad, and a key display unit, wherein said key keypad is electrically connected with said key microprocessor unit, wherein said key display unit is electrically connected with said key microprocessor unit.
10. The electronic lock system which clears cipher key instantly after the cipher key is used of claim 8, wherein said lock main body also comprises a lock keypad, a lock display unit, and a network communication interface unit, wherein said lock keypad is electrically connected with a lock microprocessor of said lock controlling unit; wherein said lock display unit is electrically connected with said lock controlling unit, wherein said network communication interface unit is electrically connected with said lock controlling unit.
11. The electronic lock system which clears cipher key instantly after the cipher key is used of claim 8, wherein said electronic key main body comprises a key contact set which is electrically connected with said key cipher data transmission unit, and said lock main body comprises a lock contact set which is electrically connected with said lock cipher data transmission unit.
12. The electronic lock system which clears cipher key instantly after the cipher key is used of claim 8, wherein said electronic key main body comprises a key transceiver which is electrically connected with said key cipher data transmission unit, and said lock main body comprises a lock transceiver which is electrically connected with said lock cipher data transmission unit.
13. The electronic lock system which clears cipher key instantly after the cipher key is used of claim 8, wherein said human characteristic sensor includes a finger print sensor, a body temperature sensor, a sweat sensor, an iris sensor, or a sensors combination.

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 pump comprising:
an inlet;
an outlet;
a pumping chamber;
one or more sealing surfaces between said inlet and said outlet; and
at least one groove on said sealing surface.
2. The pump of claim 1 wherein said at least one groove extends across said sealing surface between said inlet and said outlet.
3. The pump of claim 1 wherein said inlet is a low pressure inlet and said outlet is a high pressure outlet.
4. The pump of claim 1 wherein said pumping chamber further comprises an impeller, a cover and housing.
5. The pump of claim 1 wherein said impeller further comprises three or more vanes and at least one vane has a pressure relief feature formed on said vane.
6. The pump of claim 5 further comprising a divider between said at least two of said three or more vanes.
7. A pump comprising:
a housing having a torus and a stripper region;
a housing groove formed on a surface of said stripper region of said housing, said housing groove having a surface forming a length, width and depth of said groove;
a cover connectable to said housing, said cover extending over said housing groove formed on the surface of said stripper region; and
an impeller having a plurality of vanes rotatably positioned between said housing and said cover and said plurality of vanes are positioned in operable relation to said housing groove.
8. The pump of claim 7 further comprising a pressure relief feature on said plurality of vanes.
9. The pump of claim 8 further comprising at least one divider extending between said vanes.
10. The pump of claim 7 wherein each of said plurality of vanes has a base and a point wherein said pressure relief feature extends between said base and said point.
11. The pump of claim 10 wherein at least one vane of said plurality of vanes has a tapered width such that the thickness of a portion along the length of said vane is greater than the thickness of a tip of said vane and of a base of said vane.
12. The pump of claim 11 wherein said at least one vane of said plurality of vanes does not have a tapered width.
13. The pump of claim 7 wherein said cover has a torus and a stripper region that aligns with said torus and said stripper region of said housing when said cover is connected to said housing.
14. A pump comprising:
a housing;
a cover having a torus and a stripper region;
a cover groove formed on a surface of said stripper region, said cover groove having a surface forming a length, width and depth of said cover groove;
wherein said cover is connectable to said housing, where in said housing extends over said cover groove formed on the surface of said stripper region; and
an impeller having a plurality of vanes rotatably positioned between said housing and cover and said plurality of vanes are positioned in operable relation to said cover groove.
15. The pump of claim 14 further comprising a pressure relief feature on said plurality of vanes.
16. The pump of claim 14 further comprising at least one divider extending between said vanes.
17. The pump of claim 14 wherein each of said plurality of vanes has a base and a point wherein said pressure relief feature extends between said base and said point.
18. The pump of claim 17 wherein at least one vane of said plurality of vanes has a tapered width such that the thickness of a portion along the length of said vane is greater than the thickness of a tip of said vane and of a base of said vane.
19. The pump of claim 16 wherein said at least one vane of said plurality of vanes does not have a tapered width.
20. The pump of claim 14 wherein said cover has a torus and a stripper region that aligns with said torus and said stripper region of said housing when said cover is connected to said housing.
21. A pump comprising:
a housing;
a cover connectable to said housing;
an impeller having a plurality of vanes rotatably positioned between said housing and cover and said plurality of vanes are positioned in operable relation between said housing and said cover; and
wherein at least one of said plurality of vanes has a pressure relief feature and at least one of said plurality of vanes has no pressure relief feature.
22. The pump of claim 21 further comprising at least one divider extending between said vanes.
23. The pump of claim 22 wherein said divider intersects the height of the said vanes and creates an upper flow area and a lower flow area wherein said upper flow area is formed by the operable relation between said plurality of vanes and said cover and said lower flow area is formed by the interaction of said plurality of vanes and said housing.
24. The pump of claim 21 wherein each of said plurality of vanes has a base and a point and said pressure relief feature extends between said base and said point.
25. The pump of claim 24 wherein at least one vane of said plurality of vanes has a tapered width such that the thickness of a portion along the length of said vane is greater than the thickness of a tip of said vane and of said base of said vane.
26. The pump of claim 21 further comprising:
a torus and a stripper region on said housing;
a housing groove formed on a surface of said stripper region of said housing, said housing groove having a surface forming a length, width and depth of said housing groove;
a torus and a stripper region on said cover; and
a cover groove formed on a surface of said stripper region, said cover groove having a surface forming a length, width and depth of said cover groove.
27. The pump of claim 26 wherein said torus and said stripper region of said cover aligns with said torus and said stripper region of said housing when said cover is connected to said housing, wherein said impeller is rotatably positioned between said cover and said housing.

1461136449-33ceb926-5a0d-4e15-80f9-856fc89e4487

1. A production process of a beverage comprising a dried green tea polyphenol, said process comprising:
subjecting green tea leaves to a first extraction with water having a temperature of \u22125\xb0 C. to 8\xb0 C.,
separating and removing a first extraction solution obtained by the first extraction,
subjecting residual green tea leaves from the first extraction to a second extraction with warm water of 50\xb0 C. or higher,
drying a second extraction solution obtained from the second extraction to obtain the dried green tea polyphenol, and
mixing the dried green tea polyphenol with a beverage to produce the beverage comprising a dried green tea polyphenol,
with the proviso that the beverage comprising a dried green tea polyphenol does not comprise the first extraction solution or an extract of the first extraction solution.
2. The production process according to claim 1, wherein from 45 to 65 wt. % of non-polymer catechins of the dried green tea polyphenol consist of gallate esters of catechins.
3. The production process according to claim 1, wherein the drying is freeze drying.
4. A beverage comprising a dried green tea polyphenol obtained by the process according to claim 1.
5. A semi-fermented tea beverage or fermented tea beverage comprising a dried green tea polyphenol obtained by the process according to claim 1.
6. A beverage comprising:
(A) a polyphenol solution obtained by a first extraction of green tea leaves with water having a temperature of \u22125\xb0 C. to 8\xb0 C., and then a second extraction of residual green tea leaves from the first extraction with warm water of 50\xb0 C. or higher, and
(B) a semi-fermented tea extract or fermented tea extract,
with the proviso that the beverage does not comprise a first extract solution obtained by the first extraction or an extract of the first extraction solution.
7. The beverage according to claim 6, which contains from 0.092 to 0.5 wt. % of non-polymer catechins.
8. The beverage according to claim 7, wherein from 45 to 65 wt. % of the non-polymer catechins consist of gallate esters of catechins.
9. The beverage according to claim 6, wherein the semi-fermented tea extract or fermented tea extract is oolong tea or black tea.
10. A beverage comprising a dried green tea polyphenol obtained by the process according to claim 2.
11. A beverage comprising a dried green tea polyphenol obtained by the process according to claim 3.
12. A semi-fermented tea beverage or fermented tea beverage comprising a dried green tea polyphenol obtained by the process according to claim 2.
13. A semi-fermented tea beverage or fermented tea beverage comprising a dried green tea polyphenol obtained by the process according to claim 3.
14. The beverage according to claim 7, wherein the semi-fermented tea extract or fermented tea extract is oolong tea or black tea.
15. The beverage according to claim 8, wherein the semi-fermented tea extract or fermented tea extract is oolong tea or black tea.

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. An electrical contact element having a connecting segment which is formed of a copper sheet and comprises a coating, wherein the coating comprises:
a first layer containing at least 60% by weight of tin; and
a second layer disposed between the first layer and the copper sheet and containing a copper-containing alloy, wherein the copper-containing alloy contains 40 to 80% by weight of copper and 20 to 60% by weight of zinc, wherein the combined percentage by weight of copper and zinc is at least 90%.
2. The electrical contact element according to claim 1, wherein the second layer has a thickness of 0.5 to 5 \u03bcm.
3. The electrical contact element according to claim 1, wherein the second layer consists of the copper-containing alloy.
4. The electrical contact element according to claim 1, wherein the first layer has a thickness in a range of 1 to 15 \u03bcm.
5. The electrical contact element according to claim 1, wherein the first layer contains up to 40% by weight of zinc.
6. The electrical contact element according to claim 1, wherein the coating comprises a third layer disposed between the second layer and the copper sheet, wherein the third layer contains tin.
7. The electrical contact element according to claim 6, wherein the coating comprises a fourth layer disposed on a side of the first layer opposite the second layer wherein the fourth layer contains zinc.
8. A method for manufacturing an electrical contact element, comprising the steps of:
providing a base body;
applying a second layer on the base body, wherein the second layer contains a copper-containing alloy, wherein the copper-containing alloy contains 40 to 80% by weight of copper and 20 to 60% by weight of zinc, and wherein the combined percentage by weight of copper and zinc is at least 90%; and
applying a first layer, containing at least 60% by weight of tin, on a side of the second layer opposite the base body.
9. The method according to claim 8, further comprising a step of heat treating the electrical contact element, wherein the heat treating step is performed after the step of applying the first layer.
10. The method according to claim 8, wherein the layers are each applied by a process selected from the group consisting of galvanic technique, vapor coating, sputtering, dip coating, spray coating, and any combinations of the above processes.
11. The method according to claim 8, wherein the base body is formed of a fire-tinned copper sheet.
12. The method according to claim 9, wherein the heat treating step is performed in a temperature range of 50 to 350\xb0 C. for a time period of 1 second to 48 hours.
13. The method according to claim 12, wherein the heat treating step is performed in a temperature range of 220 to 270\xb0 C. for a time period of 5 seconds to 2 minutes.