To hose used to install loose fill insulation

Details To hose used to install loose fill insulation To hose used to install loose fill insulation

2001-04-30

2002-01-08

Brinson, Patrick (Department: 3752)

Pipes and tubular conduits

Flexible

Spirally wound material

C138S122000, C239S302000

Reexamination Certificate

active

06336474

ABSTRACT:

FIELD OF THE INVENTION
The present invention relates to hoses, and in particular, a hose for installing loose fill insulation.
DESCRIPTION OF THE RELATED ART
Loose fill insulation is packaged in bags in which the material becomes compacted during storage and shipment. When removed from the bags, the insulation separates into clumps. In order to effectively install the insulation material, it must first be “fluffed up” or conditioned to reduce its density. Traditionally, pneumatic devices are used to both install the insulation and perform the conditioning. The conditioning process breaks up the clumps and then “fluffs” or “opens up” the insulation. The conditioned insulation is then applied pneumatically to an area by blowing it through a hose connected to the pneumatic device. The insulation may be moistened and/or treated with an adhesive in the pneumatic device before installation.
FIGS.
5
(
a
) and
5
(
b
) show an example of a prior art pneumatic apparatus
10
for dispensing loose fill insulation. FIG.
5
(
a
) is an isometric view of the apparatus
10
, showing a hopper
16
for storing loose fill insulation, blower
22
, and a hose
26
for dispensing the insulation. FIG.
5
(
b
) is a side view of the apparatus
10
showing the inner workings in detail. The apparatus includes shafts
52
,
60
with spikes
54
,
62
extending therefrom for conditioning the insulation, which is placed in the hopper
16
.
The spikes
54
,
62
break apart the clumps of insulation and prepare it to be dispensed.
The conditioned insulation passes from the hopper
16
through the spikes
54
,
62
to dispensing assembly
20
, where it is blown through hose
26
by blower
22
. In operation, the user simply points the hose
26
where he desires the insulation, and it is dispensed.
Often, the conditioning which occurs within the insulation dispensing apparatus is not enough to fully “open up” the insulation. If the insulation is not sufficiently conditioned when it leaves the dispensing apparatus it may be applied unevenly (i.e. in clumps), and it may not have the manufacturer's specified density for the installed thermal resistance desired. Conversely, insulation which is well conditioned allows adhesive and moisture to penetrate the insulation fibers, and applies to surfaces more evenly. Thus, there is currently a need for an improved device for increasing the conditioning of loose fill insulation.
SUMMARY OF THE INVENTION
The present invention is a tube for enhancing the conditioning of loose fill insulation. The tube preferably comprises a hose for dispensing loose fill insulation in an insulation dispensing apparatus. The tube includes projections formed around its inner periphery which serve to condition the insulation as it passes from one end of the tube to the other.
The above and other advantages and features of the present invention are better understood from the following detailed description of the preferred embodiments of the invention which is provided in connection with the accompanying drawings.


REFERENCES:
patent: 6206050 (2001-03-01), Kelley et al.

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