US3716097A — Air condensation plant

Claim 1

Independent Claim 98 words

Air condensation plant for condensing steam by direct air cooling which comprises mutually transversely disposed elongated cooling elements traversible by steam along the length thereof, means for directing a flow of air to a respective side of said cooling elements, adjustable means for covering said side, respectively, of said cooling elements for controlling the cooling thereof and for preventing freezing, said cooling elements having an upper part through which a preponderant quantity of the steam to be condensed flows, said adjustable covering means compromising flaps and being located in front of said upper part of said cooling elements.

Claim 2

Dependent Claim 98 words

Air condensation plant for condensing steam by direct air cooling which comprises mutually transversely disposed elongated cooling elements traversible by steam along the length thereof, means for directing a flow of air to a respective side of said cooling elements, adjustable means for covering said side, respectively, of said cooling elements for controlling the cooling thereof and for preventing freezing, said cooling elements having an upper part through which a preponderant quantity of the steam to be condensed flows, said adjustable covering means compromising flaps and being located in front of said upper part of said cooling elements.

Claim 3

Dependent Claim 98 words

Air condensation plant for condensing steam by direct air cooling which comprises mutually transversely disposed elongated cooling elements traversible by steam along the length thereof, means for directing a flow of air to a respective side of said cooling elements, adjustable means for covering said side, respectively, of said cooling elements for controlling the cooling thereof and for preventing freezing, said cooling elements having an upper part through which a preponderant quantity of the steam to be condensed flows, said adjustable covering means compromising flaps and being located in front of said upper part of said cooling elements.

Claim 4

Dependent Claim 98 words

Air condensation plant for condensing steam by direct air cooling which comprises mutually transversely disposed elongated cooling elements traversible by steam along the length thereof, means for directing a flow of air to a respective side of said cooling elements, adjustable means for covering said side, respectively, of said cooling elements for controlling the cooling thereof and for preventing freezing, said cooling elements having an upper part through which a preponderant quantity of the steam to be condensed flows, said adjustable covering means compromising flaps and being located in front of said upper part of said cooling elements.

Claim 5

Dependent Claim 18 words

Air condensation plant according to claim 1, wherein said cooling elements extend at an inclination toward one another.

Claim 6

Dependent Claim 54 words

Air condensation plant according to claim 1, wherein said cover means are adjustable so as to progressively increase the area of the side of the respective cooling elements that is covered thereby, said air flow directing means being adjustable for reducing the flow of cooling air to the respective side of said cooling element.

Claim 7

Dependent Claim 26 words

Air condensation plant according to claim 1, wherein said adjustable flaps are pivotable about an axis extending along the upper inner edge of said cooling elements.

Claim 8

Dependent Claim 56 words

Air condensation plant according to claim 1, including a symmetrical assembly of two of said cooling elements leaning toward one another at an inclined angle, the adjustable flaps of both said cooling elements being pivotbale about axes located in the angle defined by said cooling elements, said flaps, in neutral position thereof, being suspended substantially vertically.

Claim 9

Dependent Claim 23 words

Air condensation plant according to claim 1, wherein said flaps are provided with parts movable for enlarging the covering area of said flaps.

Claim 10

Dependent Claim 29 words

Air condensation plant according to claim 6, wherein said flaps are respectively formed of pivotable flap parts and flap parts that are slidably mounted on said pivotable flap parts.

Claim 11

Dependent Claim 42 words

Air condensation plant according to claim 1, wherein said cooling elements have a lower portion of the respective side thereof to which the flow of air is directed by said directing means, said adjustable covering means being located at said lower portion.

Claim 12

Dependent Claim 39 words

Air condensation plant according to claim 8, wherein said cooling elements eAch comprise a plurality of cooling tubes spaced from one another so as to form a flow path for the cooling air substantially parallel to said cooling tubes.

Claim 13

Dependent Claim 64 words

Air condensation plant according to claim 1, wherein said cooling elements, respectively, have an inlet side for the air flow directed by said directing means, and a discharge side for the air flow passing through said cooling elements, and including control means for issuing control commands for reducing the air flow from said flow directing means simultaneously with the adjustment of said covering means.

Claim 14

Dependent Claim 55 words

Air condensation plant according to claim 1, including adjustable covering means located at said discharge side of said cooling elements, said control means being adapted to issue control commands for reducing the air flow from said flow directing means simultaneously with the adjustment of said covering means at said discharge side of said cooling elements.

Claim 15

Dependent Claim 27 words

AIr condensation plant according to claim 10, including a control device for automatically adjusting said covering means in dependence upon the variability of a condensation operating value.

Claim 16

Dependent Claim 53 words

Air condensation plant according to claim 12, wherein said condensation operating value is the condensate temperature, said adjustment being effective in accordance with said condensate temperature with respect to the temperature of the outer air and the temperatures of the cooling air flow at said inlet and outlet sides of said cooling elements.

Claim 17

Dependent Claim 72 words

Air condensation plant according to claim 11, wherein said control device, in response to said covering means being fully closed at said inlet side of said cooling elements, and said cooling air being reduced, is adapted, upon a required further reduction of the cooling air flow, to adjust said covering means at said outlet side of said cooling elements in closing sense in dependence upon the reduction in the cooling air throughput.

Claim 18

Dependent Claim 43 words

Air condensation plant according to claim 11, wherein said air flow directing means is adjustable for reducing the output thereof to a minimum, said control device being thereby actuable for simultaneously closing said covering means at said discharge side of said cooling elements.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1976-02-13	1976-08-14	1977-02-13	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1980-02-13	1980-08-14	1981-02-13	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1984-02-13	1984-08-14	1985-02-13	$7700.00	Window Closed / Lapsed

Air condensation plant

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