초록 ▼

A spout for a flexible bag adapted to hold a liquid, the spout adapted for coupling with a connector having a rotatable spout adapter with an internal thread. The spout has a substantially cylindrical body with an outer surface, a spout opening, and a spout axis. The spout further has at least one f

A spout for a flexible bag adapted to hold a liquid, the spout adapted for coupling with a connector having a rotatable spout adapter with an internal thread. The spout has a substantially cylindrical body with an outer surface, a spout opening, and a spout axis. The spout further has at least one flexible tab attached to and protruding radially distal from the outer surface of the cylindrical body of the spout. The tab has a top side that is substantially perpendicular to the spout axis, a bottom side opposing the top side, and a leading edge for engaging the thread. Additionally, the spout, has an undeformed tab length that typically deforms upon engaging the internal thread of the spout adapter.

대표청구항 ▼

A spout for a flexible bag adapted to hold a liquid, the spout adapted for coupling with a connector having a rotatable spout adapter with an internal thread. The spout has a substantially cylindrical body with an outer surface, a spout opening, and a spout axis. The spout further has at least one f

A spout for a flexible bag adapted to hold a liquid, the spout adapted for coupling with a connector having a rotatable spout adapter with an internal thread. The spout has a substantially cylindrical body with an outer surface, a spout opening, and a spout axis. The spout further has at least one flexible tab attached to and protruding radially distal from the outer surface of the cylindrical body of the spout. The tab has a top side that is substantially perpendicular to the spout axis, a bottom side opposing the top side, and a leading edge for engaging the thread. Additionally, the spout, has an undeformed tab length that typically deforms upon engaging the internal thread of the spout adapter. aim 2 in which said connector means is provided with a circumferentially extending groove and in which said filter member is retained within said circumferentially extending groove. 4. An apparatus for mixing a first powered substance contained within a first sealed container under vacuum and a second fluid substance contained within a second sealed container to form a mixture, each said container comprising a container portion and an upper, generally cylindrically shaped portion, said apparatus comprising: (a) a first adapter including a top wall, a cannula connected to and extending from said top wall, a first connector connected to and extending from said top wall and a resiliently deformable skirt connected to and extending from said top wall for telescopically receiving the upper portion of the first container; (b) an aspirator removably interconnected with said first connector; and (c) a second adapter releasably interconnected with said first connector, said second adapter comprising: (i) a top wall; (ii) a cannula connected to and extending from said top wall; (iii) a resiliently deformable skirt connected to and extending from said top wall for telescopically receiving the upper portion of the second container; (iv) a connector connected to said top wall said connector having a circumferentially extending groove; and (v) filter means connected to said connector for filtering particulate matter from fluid flowing through said connector, said filter means comprising a generally disk shaped filter member retained within said circumferentially extending groove. 5. The mixing apparatus as defined in claim 2 in which said first and second connectors comprise luer connectors. 6. An apparatus for mixing a first powdered substance contained within a first sealed container under vacuum and a second fluid substance contained within a second container to form a mixture, each said container comprising a container portion and an upper, generally cylindrically shaped portion, said apparatus comprising: (a) a first adapter including a top wall, a cannula connected to and extending from said top wall, a first connector connected to and extending from said top wall and a resiliently deformable skirt connected to and extending from said top wall for telescopically receiving the upper portion of the first container; (b) an aspirator removably interconnected with said first connector; and (c) a second adapter releasably interconnected with said first connector, said second adapter comprising: (i) a top wall; (ii) a cannula connected to and extending from said top wall; (iii) a resiliently deformable skirt connected to and extending from said top wall for telescopically receiving the upper portion of the second container; (iv) a connector connected to said top wall; and (v) filter means connected to said connector for filtering particulate matter from fluid flowing through said connector. 7. The apparatus as defined in claim 6 in which said filter means comprises a generally disk shaped filter member connected to said second connector means. 8. The apparatus as defined in claim 7 in which said connector includes a circumferentially extending groove and in which said filter member is retained within said circumferentially extending groove. 9. The mixing apparatus as defined in claim 6 in which said first and second connectors comprise luer connectors. 71000, Ford et al., 604/151; US-5807336, 19980900, Russo et al., 604/131; US-5885245, 19990300, Lynch et al., 604/067; US-5895371, 19990400, Levitas et al., 604/049; US-5925016, 19990700, Chornenky et al., 604/096.01; US-6053887, 20000400, Levitas et al., 604/049; US-6070761, 20000600, Bloom et al., 222/081; US-6074366, 20000600, Rogers et al., 604/151; US-6230501, 20010500, Bailey, Sr. et al., 062/051.1; US-6231560, 20010500, Bui et al., 604/500 reduce current flowing into the oscillator circuit from the bias circuit by enough to control the level of swing of the oscillator voltage to a desired level. 2. The voltage controlled oscillator of claim 1, wherein the amplifier comprises first and second transistors each set nominally in cut-off, bases of the first and second transistors being coupled to the oscillator circuit to sense an amplitude of the oscillator voltage. 3. The voltage controlled oscillator of claim 2, and further comprising resistors coupled to the emitters of the first and second transistors, wherein the first and second transistors sense when the amplitude of the oscillator voltage reaches the desired level set by values for the resistors. 4. The voltage controlled oscillator of claim 3, wherein the first and second transistors are responsive to the amplitude of the oscillator voltage reaching the desired level to turn on briefly and draw current away from the bias circuit. 5. The voltage controlled oscillator of claim 4, wherein the bias circuit comprises first and second transistors whose bases are coupled together, a diode having an anode coupled to the base of the first transistor and to the collector of the second transistor, and a current source coupled to the cathode of the diode, wherein a connection is made between the collectors of the first and second transistors of the amplifier and the cathode of the diode in the bias circuit to provide a path to draw current away from the second transistor in the bias circuit. 6. The voltage controlled oscillator of claim 2, wherein the oscillator circuit comprises an LC tank circuit comprised of two inductors coupled to two varactors, and wherein the first and second transistors of the oscillator circuit are PMOS transistors. 7. The voltage controlled oscillator of claim 6, wherein the base of the first transistor of the amplifier is coupled to the gate of the second transistor of the oscillator circuit and the base of the second transistor of the amplifier is coupled to a node between one inductor and one varactor in the LC tank circuit. 8. The voltage controlled oscillator of claim 1, wherein the amplifier is a class C amplifier. 9. A voltage controlled oscillator comprising: a. an oscillator circuit comprising an LC tank circuit and first and second PMOS transistors connected in a negative resistance configuration across the LC tank circuit, wherein the LC tank circuit comprises first and second inductors and first and second varactors, wherein the oscillator circuit generates an oscillator voltage proportional in frequency to an input control voltage supplied to a node between the varactors and proportional in amplitude to an input control current supplied to a node between the first and second PMOS transistors; b. a current source circuit coupled to the oscillator circuit that supplies the input control current to the oscillator circuit; c. a bias circuit coupled to the current source circuit that biases the current source circuit; and d. a feedback loop coupled between the bias circuit and the oscillator circuit, wherein the feedback loop comprises an amplifier having a high input impedance that is coupled to sense the oscillator voltage and output a current proportional to a positive peak of the oscillator voltage to reduce current flowing into the oscillator circuit from the bias circuit by enough to control the level of swing of the oscillator voltage to a desired level, wherein the amplifier comprises first and second transistors each set nominally in cut-off, the base of the first transistor coupled to a gate, of the second PMOS transistor in the oscillator circuit and the base of-the second transistor being coupled to a node between one of the inductors and varactors in the LC tank circuit, and resistors connected to the emitters of the first and second transistors such that the value of the resistors control a level at which the first and second transistors turn on and draw current