초록 ▼

A fluid supply system has a plastics bag reservoir into which the other parts of the system may be packed. The other parts of the system include a flow pipe, a connector to connect the pipe to a wall of the reservoir and fluid supply outlet drip-valves. The connector may be in two or three parts and

A fluid supply system has a plastics bag reservoir into which the other parts of the system may be packed. The other parts of the system include a flow pipe, a connector to connect the pipe to a wall of the reservoir and fluid supply outlet drip-valves. The connector may be in two or three parts and may be arranged to puncture a hole in the reservoir wall and grip the wall as the parts of the connector are interengaged. Each drip-valve is adjustable to vary the amount of fluid supplied from the reservoir to a grow-bag.

대표청구항 ▼

A two-part progressive flow valve for a fluid supply system, said valve comprising: (a) a first part snap-engageable into a second part and being relatively rotatable therein between first and second angular positions, (b) in said first angular position said valve is closed and in said second angula

A two-part progressive flow valve for a fluid supply system, said valve comprising: (a) a first part snap-engageable into a second part and being relatively rotatable therein between first and second angular positions, (b) in said first angular position said valve is closed and in said second angular position said valve is fully open, (c) said second part having a circular seating portion corresponding in diameter to a first circular portion of said first part so that in use said first portion is seated in said seating portion and rotatable about the axis of said seating portion, (d) each of said first and second parts including a further circular portion and these further portions being arranged eccentrically to one another, (e) said further portion of said first part including a bore extending generally radially thereof, (f) the bore is blocked off by said further portion of said second part in said first angular position with said two further portions in engagement with a gap remote from a region surrounding said bore between said further portions, and (g) in said second angular position, said bore is not blocked off and said valve is fully open and there is a gap near the region surrounding said bore between said further portions. A connector suitable for connecting two regions together separated by a wall or partition, said connector comprising: (a) at least a first piece and a second piece releasably snap-lockable together with said wall or partition gripped therebetween and with said connector surrounding a hole in said wall or partition, (b) said first piece being provided with a male portion, which in use passes through said hole in said wall and is snap-locked in the female portion of said second piece, (c) said second piece being generally tubular, (d) said female portion comprising a bore having a first portion flared in a direction towards said first piece when said first and second pieces are releasably locked together and in locking said female portion said flared first portion of said bore is engaged by a head of said male portion which resiliently deforms said second piece and/or is itself resiliently deformed until head snap engages a locking abutment on said female portion, at which location an annular gap is defined between said female portion and said male portion between the head and the remainder of said first piece, (e) said first piece being separable from said second piece first by closing the gap to thereby move said locking abutment in relation to said head so that said head and male portion may then be retracted from said female portion.