Assembly for dispensing a fluid product
AssigneeAptar France SAS
InventorsArnaud Dartevelle, Regis Jacquemart
Life of this patent
Estimating the term…
Abstract
A fluid dispenser assembly having a fluid reservoir (4), a dispenser member (5), and a dispenser orifice (62). The fluid reservoir (4) includes a piston (42) movable in leaktight sliding contact in a slide cylinder (41) over a maximum stroke defined between a start position that corresponds to a substantially full state of the reservoir, and an end position that corresponds to a substantially empty state of the reservoir. The dispenser assembly further includes an RFID tag (40) that is secured to the piston (42).
Claims14
A fluid dispenser assembly comprising a fluid reservoir (4;
- R), a dispenser member (5;
- V), and a dispenser orifice (62), the fluid reservoir (4;
- R) including a piston (42;
- P) that is movable in leaktight sliding contact in a slide cylinder (41) over a maximum stroke defined between a start position and an end position, the dispenser assembly further comprises an RFID tag (40) that is secured to the piston (42;
- P) and warning means (35) that informs the user that a determined power level of the return signal transmitted by the RFID tag has been measured, corresponding to a determined filling state of the reservoir (4;
- R).
A fluid dispenser assembly comprising a fluid reservoir (4;
- R), a dispenser member (5;
- V), and a dispenser orifice (62), the fluid reservoir (4;
- R) including a piston (42;
- P) that is movable in leaktight sliding contact in a slide cylinder (41) over a maximum stroke defined between a start position and an end position;
- the dispenser assembly further comprises:
- an RFID tag (40) that is secured to the piston (42;
- P),
- two transmit antennas (32a, 32b;
- 32′) configured to send a signal to the RFID tag (40) and to receive a return signal transmitted by the RFID tag (40), and
- the two transmit antennas (32a, 32b) are positioned spaced apart from each other, each receiving measured power levels of return signals transmitted by the RFID tag (40), and a comparator circuit is provided and configured to compare the measured power levels, in order to deduce therefrom a filling state of the reservoir (4).
A fluid dispenser assembly comprising a fluid reservoir (4;
- R), a dispenser member (5;
- V), and a dispenser orifice (62), the fluid reservoir (4;
- R) including a piston (42;
- P) that is movable in leaktight sliding contact in a slide cylinder (41) over a maximum stroke defined between a start position and an end position, the dispenser assembly further comprises an RFID tag (40) that is secured to the piston (42;
- P) and at least one transmit antenna (32a, 32b;
- 32′) configured to send a signal to the RFID tag (40) and to receive a return signal transmitted by the RFID tag (40);
- and
- wherein said at least one antenna a power measurement circuit and a comparator circuit configured to compare measured power levels are mounted on a printed circuit (37).
Dependencies are inferred from the claim text.