摘要:
A ceiling vent assembly has a frame and a pair of louvers pivotably mounted in the frame such that each of the louvers pivots between an open position and a closed position. Each of the louvers has a pivot end, wherein the pivot end of a first louver of the pair of louvers is located adjacent to but spaced apart from the pivot end of a second louver of the pair of louvers. The ceiling vent has a sealing mechanism positioned in the space between the first and second louvers so as to press on the pivot ends of the first and second louvers such that the sealing mechanism reduces the flow of air through the space. When the first and second louvers pivot between the open and closed positions, the pivot end of the first and second louvers slide relative the sealing mechanism.
摘要:
Arrangement Applied In Animal Cage, belonging to the technical veterinarian field, more particularly, it is a cage with active ventilation to animals such as rodents, rats, mice, and hamsters, for home use or in laboratory facilities, through which are achieved very advantageous practical, safe and functional results. The animal cage, made of polycarbonate, includes a cage, in the shape of a parallelepiped box, equipped, on the top perimeter, with flaps, with rounded edges, on which engages the lid with filter and on the rear face is provided a hole for coupling the exhaust system connected to a power source.
摘要:
A natural convection roof device includes a first roof drainage panel, a first extended roof drainage panel, a second roof drainage panel, an inner barrier and an inner roof containing an inner ventilation opening disposed obliquely to the first roof drainage panel. The top end of the first roof drainage panel includes the first extended roof drainage panel, and the top end of the first extended roof drainage panel is assembled with the second roof drainage panel and the inner barrier. The bottom ends of the second roof drainage panel and the inner barrier are installed on the inner roof. The lower side of the inner barrier is center ventilation openings. Above the second roof drainage panel is ventilation holes, and below the second roof drainage panel is drain holes. The level of the ventilation holes is higher than that of the inner ventilation opening.
摘要:
A livestock production building includes an automatically controllable ventilation system which provides ventilation to livestock containment rooms. Incoming air may be heated, cooled and/or filtered, and is mixed and tempered before being delivered to livestock rooms. Substantially all exhaust air is filtered to mitigate environmental impact.
摘要:
A rack system having shelves configured to support a plurality of disposable animal cages may include a modular configuration that is adapted to easily provide a desired rack size during manufacturing. A rack system may also include shelves which are configured to receive disposable cages and which have spring biased rails configured to receive edges of the disposable cages and provide a spring bias pushing apertures of a cage against nozzles of the shelf to provide a seal therebetween. A rack system may also include shelves which are configured to receive disposable cages and which have resilient flexible lids configured to deflect for releasable engagement into the rack assembly and establish a seal between the nozzle and receptacle for a controllable flow of air therethrough. A rack system may also include a monitoring system that includes at least one sensor in communication with a exhaust manifold of a cage that provides information to a controller that communicates cage conditions to a user via a graphic user interface. The controller may also provide information to a user independent of sensor data.
摘要:
A livestock production building includes an automatically controllable ventilation system which provides ventilation to livestock containment rooms. Incoming air may be heated, cooled and/or filtered, and is mixed and tempered before being delivered to livestock rooms. Substantially all exhaust air is filtered to mitigate environmental impact.
摘要:
An attic inlet has a square tube to communicate between an attic and a room through a substrate, and a lid to permit airflow through the inlet when open, and prevent it when closed. The lid is moved by an upper pull bar and lower connecting bars attached to the lid. Upper pull bar and lower connecting bars are attached by clevis pins to yoke arms pivoting about parallel axles. Movement of the upper pull bar rotates the yoke arms, and so lowers the connecting bars and the attached lid. Springs urge pull bar and lid into closed default position, while a cord is used to displace pull bar and lid into open position. The lid is attached by tabs on the connecting bars passing through the lid, and lid locking bars engaging apertures in the tabs.
摘要:
Methods for transporting livestock and livestock feed in shipping containers and for separating the shipping containers into a livestock storage areas and feed storage areas for the measured distribution of feed throughout shipment.
摘要:
An at least partially open sided outdoor animal shelter structure, the structure including (a) a floor to support animals, the floor including apertures therethrough allowing animal waste matter to pass through the floor, (b) a basement below the floor for collecting the waste matter, (c) floor supports to support the floor above the basement, (d) side supports, (e) a water impervious canopy supported by the side supports, the canopy being supported above at least part of the floor, the canopy allowing at least some light to pass therethrough, (f) at least one air flow control means to control airflow in the area below the canopy.
摘要:
An integrally formed air intake apparatus for regulating air flow into a structure such as a barn. The air intake apparatus includes an elongate convex valve seat to minimize contact between the valve seat and its valve and to permit smooth air flow over the rounded valve seat. The apparatus further includes a duct-receiving groove for easily mounting a duct which directs outside air into the valve and a shoulder extending about the duct-receiving groove for bearing against an inner portion of the structure. The housing is molded from one-piece such that the valve seat, duct-receiving groove, and shoulder are integrally formed.