Measuring device
OwnerRonald Wilson, Peter Carpenterinventors
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Abstract
A sleeve comprising a hollow elongate body (3) have two ends, which sleeve is suitable for elastically gripping a rolled smoking article or a filter rod for rolled smoking articles in an airtight or substantially airtight fashion; characterized in that the sleeve is formed by molding whereby each end is molded with an annular portion (4, 6) which can be folded circumferentially outwardly without imposing substantial strain on the material of the sleeve. The invention further provides a head assembly for a pressure drop and/or ventilation measuring device comprising such a sleeve, and a method for measuring the pressure drop or ventilation of a roller smoking article or a filter rod, using a pressure drop and/or ventilation measuring device having such a head assembly.
Claims32
A pressure drop measuring device comprising:
- an elongate bore that is adapted for accommodating a rolled smoking article or a filter rod for rolled smoking articles;
- at least one pair of spaced circumferential flanges positioned within or around said bore;
- a sleeve for holding the rolled smoking article or filter rod in the elongate bore, the sleeve comprising a hollow elongate body having two ends, and wherein the sleeve is formed by molding whereby each of said ends is molded with an annular portion which can be folded circumferentially outwardly without imposing substantial strain on the material of the sleeve, wherein the sleeve can be folded circumferentially outwardly at either end thereof to be engaged with respective circumferential flanges positioned within or around said bore;
- a pressurized air source being operable to draw air through the rolled smoking article or filter rod held in the sleeve;
- and
- pressure measurement means arranged to measure the pressure in the bore.
A ventilation measuring device comprising:
- an elongate bore that is adapted for accommodating a rolled smoking article;
- at least one pair of spaced circumferential flanges positioned within or around said bore;
- a sleeve for holding the rolled smoking article in the elongate bore, the sleeve comprising a hollow elongate body having two ends, and wherein the sleeve is formed by molding whereby each of said ends is molded with an annular portion which can be folded circumferentially outwardly without imposing substantial strain on the material of the sleeve, wherein the sleeve can be folded circumferentially outwardly at either end thereof to be engaged with respective circumferential flanges positioned within or around said bore;
- a pressurized air source being operable to draw air through the rolled smoking article held in the sleeve, wherein air is drawn through the end of the rolled smoking article and through an area of the lining paper;
- and
- airflow measurement means arranged to measure the airflow that is related to the ventilation of an area of the lining paper of the rolled smoking article.
Dependencies are inferred from the claim text.