Assembly for insect trap

An assembly for an insect trap including a curvilinear cover member having an inlet for attracted insects is set forth. The inlet is adapted to prevent return of trapped insects through the inlet. Also set forth is a bag having a mouth, the bag having a band below the mouth, the band being peripherally expandable to be forced over the periphery of the cover and to conform with the shape of said periphery. Finally a ring-like element C-shaped in cross section is adapted to clamp the mouth of the bag between said element and the cover.

This invention relates to an assembly for an insect trap. 
According to the invention an assembly for an insect trap includes a 
curvilinear cover member having an inlet for attracted insects, the inlet 
being adapted to prevent return of trapped insects through the inlet, and 
a bag whose mouth is adapted to be clamped between the cover and a 
ring-like element. 
The ring-like element may engage a peripheral flange of the cover and in a 
preferred form of the invention the flange depends downwardly. 
In an alternative form of the invention the ring-like element is a hollow 
beading which is resiliently engageable with the periphery of the cover so 
that the bag is anchored between it and the periphery. The beading may be 
of C-shaped cross section and resilient in both the longitudinal and cross 
sectional directions. The cover may have a peripheral ridge formation 
corresponding with the interior of the C. 
The bag may include a band below the mouth, the band being peripherally 
expandable so that it can be forced over the periphery of the cover to 
conform with the shape of the periphery. This band may conveniently take 
the form of a series of vertical slits. 
A line of weakness may be located below the mouth of the bag so that the 
zone above the line of weakness may be removed after location of the bag 
on the cover. Vertical lines of weakness may also be provided extending 
from the edge of the mouth to the first mentioned line of weakness. 
The line of weakness may be located a short distance above the band.

In FIGS. 1 and 2 an assembly includes a cover 10 which has an inlet 12 for 
insects attracted by bait in the bag 14, for example. A canopy 21 is 
provided over the inlet and a downwardly-depending conical mesh formation 
23 with a hole 18 at its apex extends into the bay so that insects, once 
attracted into the bag, find it impossible to escape. The canopy 21 also 
provides protection against the weather and a cord 20 provided for 
suspension of the cover and the inlet is protected against weather by a 
canopy 21. A flanged ring-like element 22 is provided which fits neatly 
behind a downwardly-depending flange 24 of the cover so that a bag 14 may 
be anchored between the element 22 and the flange 24. 
The bag 14 includes a line of weakness 26 which extends around the bag and 
also includes lines of weakness 28 at right angles to the line 26. These 
are provided so that the bag can be tidied after location and anchorage. 
It is an easy matter to disengage the element 22 and flange 24 for removal 
of a bag so that it can be replaced with a fresh one. 
Referring now to FIGS. 3 and 4 where like references relate to the same or 
similar integers, the periphery of the cover 10 is ridged at 40, the shape 
of the ridge conforming to the interior of a ring-like flexible element 44 
so that the bag may be anchored between the ridge and the element as shown 
in FIG. 4. 
The element 44 is substantially C-shaped in cross section with an opening 
which is smaller than the ridge 40 thereby necessitating a force fit as 
more clearly shown in the enlarged insert. 
The element is preferably made from a suitable polymeric material for 
flexibility both longitudinally and transversally. 
The bag in this case includes a band constituted by a plurality of vertical 
slits 50. This band is located on the ridge 40 when the bag is pulled on 
to the ridge and the expansion afforded by the slits ensures that the bag 
is located with the band corresponding with the ridge. The element 44 is 
then forced over the ridge and then and the mouth of the bag is then torn 
along the lines of weakness 52.