Patent US4239020A successfully refreshed from Google Patents.
US4239020A
Expired / Lapsed
US
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House and method for livestock raising
Assignee: Misato Plaheat Manufacturing Ltd
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Filing: 1979-04-16
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Granted: 1980-12-16
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Expires: 1999-04-16
Abstract
Abstract A method of promoting growth of a great number of livestock individuals to the prescribed average weight in a substantially closed house, within a reduced period of time and consumption of feed, at an enhanced rate of survival and at a suppressed degree of variation in the individual growth, which comprises heating the house floor from below and controlling the floor temperature to be substantially constant throughout the floor area, and effecting ventilation across the house substantially without generation of any noise by delivering outdoor air taken in through an intake opening substantially evenly into the house and discharging the air within the house by natural exhaust through an exhaust window. A livestock house for practice of the method is also disclosed.
Inventors
- 👤 Shin Kiyokawa
- 👤 Shokichi Sakaguchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:20
CPC Classifications
A; A01; A01K; A01K1/00; A01K1/0047; A01K31/00; A01K31/18; A01K31/20; A01K39/00; A01K39/01
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
251 words
A substantially closed livestock house comprising roof, ceiling, floor and side walls, which includes: a heat insulating member applied about the roof and side walls comprising broken paper fragments processed for fire retardation; a planar heating device disposed below the floor comprising a planar heat-generating element made of a plate of a synthetic resin containing carbon powder mixed therein or a fabric coated on impregnated with such synthetic powder, a pair of electrodes and a covering member; an air inlet opening in one of the side walls near the uppermost portion of the side wall; a fan arranged to pull outside air into the house and distribute it within the house; at least one exhaust window in at least one side wall for effecting natural exhaust of air; at least one duct formed with the ceiling as a bottom side, with the bottom side having a plurality of openings, the duct being arranged on the downstream side of the fan to receive the outside air pulled into the house by the fan; a guide path between the air inlet and the fan for heat exchange of the outside air pulled in by the fan comprising a plate diaphragm horizontally extending longitudinally of the house so as to form an at least two-pass labyrinth from the air inlet to the fan extending the length of the house; and one cover plate pivotally covering each exhaust window adapted to open the exhaust window responsive to a rise in the pressure in the house.
Claim 2
Dependent Claim
251 words
A substantially closed livestock house comprising roof, ceiling, floor and side walls, which includes: a heat insulating member applied about the roof and side walls comprising broken paper fragments processed for fire retardation; a planar heating device disposed below the floor comprising a planar heat-generating element made of a plate of a synthetic resin containing carbon powder mixed therein or a fabric coated on impregnated with such synthetic powder, a pair of electrodes and a covering member; an air inlet opening in one of the side walls near the uppermost portion of the side wall; a fan arranged to pull outside air into the house and distribute it within the house; at least one exhaust window in at least one side wall for effecting natural exhaust of air; at least one duct formed with the ceiling as a bottom side, with the bottom side having a plurality of openings, the duct being arranged on the downstream side of the fan to receive the outside air pulled into the house by the fan; a guide path between the air inlet and the fan for heat exchange of the outside air pulled in by the fan comprising a plate diaphragm horizontally extending longitudinally of the house so as to form an at least two-pass labyrinth from the air inlet to the fan extending the length of the house; and one cover plate pivotally covering each exhaust window adapted to open the exhaust window responsive to a rise in the pressure in the house.
Claim 3
Dependent Claim
207 words
A substantially closed livestock house comprising roof, ceiling, floor and side walls, which includes: a heat insulating member applied about the roof and side walls; a planar heating device disposed below the floor; an air inlet opening in one of the side walls near the uppermost portion of the side wall; a fan arranged to pull outside air into the house and distribute it within the house; at least one exhaust window in at least one side wall for effecting natural exhaust of air; at least one duct formed with the ceiling as a bottom side, with the bottom side having a plurality of openings, the duct being arranged on the downstream side of the fan to receive the outside air pulled into the house by the fan; a guide path between the air inlet and the fan for heat exhange of the outside air pulled in by the fan comprising a plate diaphragm horizontally extending longitudinally of the house so as to form an at least two-pass labyrinth from the air inlet to the fan extending the length of the house; and one cover plate pivotally covering each exhaust window adapted to open the exhaust window responsive to a rise in the pressure in the house.
Claim 4
Dependent Claim
207 words
A substantially closed livestock house comprising roof, ceiling, floor and side walls, which includes: a heat insulating member applied about the roof and side walls; a planar heating device disposed below the floor; an air inlet opening in one of the side walls near the uppermost portion of the side wall; a fan arranged to pull outside air into the house and distribute it within the house; at least one exhaust window in at least one side wall for effecting natural exhaust of air; at least one duct formed with the ceiling as a bottom side, with the bottom side having a plurality of openings, the duct being arranged on the downstream side of the fan to receive the outside air pulled into the house by the fan; a guide path between the air inlet and the fan for heat exhange of the outside air pulled in by the fan comprising a plate diaphragm horizontally extending longitudinally of the house so as to form an at least two-pass labyrinth from the air inlet to the fan extending the length of the house; and one cover plate pivotally covering each exhaust window adapted to open the exhaust window responsive to a rise in the pressure in the house.
Claim 5
Dependent Claim
50 words
A livestock house as claimed in claim 2, in which the planar heating device comprises a planar heat-generating element made of a plate of a synthetic resin containing carbon powder mixed therein or a fabric coated or impregnated with such synthetic resin, a pair of electrodes and a covering member.
Claim 6
Dependent Claim
22 words
A livestock house as claimed in claim 2, in which the heat insulating member comprises broken paper fragments processed for fire retardation.
Claim 7
Dependent Claim
31 words
A livestock house as claimed in claim one of claims 1 or 2, which has a pit provided in a central portion of the floor, extending in the longitudinal direction thereof.
Claim 8
Dependent Claim
22 words
A livestock house as claimed in claim 5, in which a exhaust pipe is provided to the pit, communicating with the air.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-12-16 | 1984-06-16 | 1984-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-16 | 1988-06-16 | 1988-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-16 | 1992-06-16 | 1992-12-16 | $7700.00 | Window Closed / Lapsed |