Appeal No. 1999-0955
Application No. 08/687,872
or upper surface 9a and an inner face
or lower surface 9b. de Laforcade also provides a transport
mechanism to force the composition from the reservoir to the
inner face 9b of the dispenser head 9 and through the pores of
the applicator head for distribution onto the upper surface.
To this end the reference teaches that:
[a] liquid to be dispensed has been stored under
pressure in the reservoir 1. This liquid can be a
body deodorant liquid composition having a viscosity
of approximately 0.003 Pa. Pressurization can be[5]
effected either by bringing the liquid directly into
contact with the propellant gas, or by separating
the liquid and the propellant gas by a movable
piston or by a deformable flexible bag, which, in
this latter case, obviates the need to use the
device in a determined position, with the valve
upwards or with the valve downwards. In the example
described, butane has been used as the propellant
gas, the liquid being separated from the butane by a
movable piston.
See col. 5, ll. 5-15. As de Laforcade teaches that the
composition enters the applicator head through the inner face
Pa is the abbreviation for a pascal, a unit of pressure in the SI5
system equal to 1 newton per square meter. Since viscosity is typically
given in centipoise (cP), poise (P) or pascal second (PaCs), it appears that
“0.003 Pa” is a typographical error and should read --0.003 PaCs--. A pascal
second equals 10 poise. Thus, 0.003 PaCs equals 0.03 poise or 3.0 cP.
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