Abstract:
1. Device for the pulsed release of an amount of fluid (3) which can be stored in an accumulator housing (2). 2. A device for the pulsed release of an amount of fluid which can be stored in a storage housing (2) is characterized in that a locking device (7) is formed by a piston-cylinder arrangement (8) having a cylinder housing (9) that is subdivided into a first working chamber (11) and a second working chamber (12) by a working piston (10), an electrorheological or magnetorheological valve (14) in the form of a gap (15) or an opening being arranged between the working chambers (11, 12) in the circumference (13) of the working piston (10) or in the working piston (10) as such.
Abstract:
A device for the pulsed release of an amount (3) of fluid that is stored in a storage housing (2) includes a piston (5) biased by a first spring (4) and movable within the storage housing (2) to dispense the fluid by the spring bias, when triggered by an actuator (6) to release a lock holding the piston in place (7). The lock (7) has individual catches (8) keeping the piston (5) in its pretensioned position and, when actuated by the actuator (6), releases the piston (5).
Abstract:
A device for the pulsed release of an amount of fluid stored in a storage housing (2) has a locking device (7) formed by a piston-cylinder arrangement (8). The arrangement has a cylinder housing (9) subdivided into a first working chamber (11) and a second working chamber (12) by a working piston (10). An electrorheological or magnetorheological valve (14) in the form of a gap (15) or an opening is arranged between the working chambers (11, 12) in the circumference (13) of the working piston (10) or in the working piston (10).
Abstract:
A device for the pulsed release of an amount (3) of fluid that is stored in a storage housing (2), in particular for implementing a start-stop function in automatic transmissions, with a piston (5) that is supported against a first energy storage device (4) and that, with the capacity to move within the storage housing (2), limits in conjunction with the latter the amount (3) of fluid that can be held and that, when triggered by an actuation means (6) and released by a locking means (7), pushes the amount (3) of fluid out of the storage housing (2) in a pulsed manner, the locking means (7) having individual catch means (8) that in the locked position keep the piston (5) in its pretensioned position, and that, when actuated by the actuation means (6), release the piston (5) in a release position, is characterized in that in any travel position of the piston (5), the catch means (8) are at least partially in contact with the inside wall of the piston (5) facing them, and that for locking of the piston (5), the catch means (8) act in that end region (9) of the piston (5) that is located adjacent to the stored amount (3) of fluid.
Abstract:
The invention relates to a method of and to an apparatus for perforating the tubular wrappers of plain or filter cigarettes and other rod-shaped articles of the tobacco processing industry. The articles are advanced sideways at the periphery of a rotary drum-shaped carrier which cooperates with a device serving to roll them about their longitudinal axes while the wrappers are being perforated by one or more pulsating beams issuing from one or more lasers and passing through a stationary cylinder lens on their way to the facets of a rotating cylindrical mirror which directs the beam(s) across the axis of the carrier and pivots the beam(s) about such axis on its or their way radially outwardly of the carrier toward a first set of stationary deflecting mirrors. These mirrors deflect the beam(s) in at least substantial parallelism with the axis of the carrier at locations radially outwardly of the latter's periphery toward a second set of deflecting mirrors which, in turn, direct the beam(s) substantially radially toward the axis of the carrier and against spherical lenses which focus the beam(s) upon the wrappers of the articles.
Abstract:
The diagnosis apparatus according to the invention for the picture providing recording of fluorescing biological tissue by way of an endoscope contains a stimulation light source which beams spectral components suitable for fluorescence stimulation into the tissue through the endoscope. The fluorescent light reflected by the tissue reaches through the endoscope optics into a head piece where it is split into a green, and spacially separated from this, a red spectral component and falls each on one half of a CCD solid body of a highly sensitive black and white camera. In an electronic and processor component the video signals allocated to the green and to the red spectral component are processed into two separate processing channels in a manner such that the separately processed green-red video signals are simultaneously inputted to a color video monitor and here may be superimposed to a red-green monitor picture, which may show changes of tissue indicating disease, for example dysplasia, carcinomas in situ etc., in all organs which are endoscopically accessible.
Abstract:
This invention relates to dry pharmaceutical compositions comprising an active ingredient which is 5-aminolevulinic acid (5-ALA) or a precursor or derivative of 5-ALA, or a pharmaceutically acceptable salt thereof. The compositions may be used in the photodynamic treatment (PDT) or photodynamic diagnosis (PDD) of cancer, pre-cancerous conditions and non-cancerous conditions. The invention relates further to irradiation devices comprising dry compositions and the use of such devices in the photodynamic treatment (PDT) or photodynamic diagnosis (PDD) of cancer, pre-cancerous conditions and non-cancerous conditions.
Abstract:
The invention concerns a 5-aminolevulinic acid ester (E-ALA) solution for producing a pharmaceutical preparation useful for diagnosing and/or treating tissue and/or cell pathologies by local radiation exposure using radiation emitted by a light source energy followed, in the case diagnosis, by detection of fluorescent protoporphyrin IX (Pp1X). The E-ALA concentration in the solution is less than 1% and ranges between 0.01% and 0.5%. The low E-ALA concentration in the solution increases Pp1X synthesis and homogenises its distribution in the cell layers while highly reducing the secondary toxicity for the treated cells.
Abstract:
A perforation apparatus of the tobacco-processing industry for perforating a wrapper of a rod-shaped article includes at least one optical radiation source to generate at least one primary beam. Optical elements are operative to split the at least one primary beam into at least four mutually non-overlapping partial beams to produce at least four perforation zones offset in an axial direction of the rod-shaped article. Partial beams arranged mirror symmetrically to each other with respect to a mirror plane of the rod-shaped article are derived from the same primary beam.
Abstract:
Apparatus for making perforations in a running web of wrapping material for tobacco or filter rods or in the wrappers of discrete cigarettes has a carbon dioxide laser with two parallel resonators which are mechanically coupled to each other to define a U-shaped resonance chamber and the free ends of which carry partially transmitting mirrors for the passage of discrete active beams of coherent radiation. The two active beams are thereupon split into pairs of split beams and the split beams are focused upon the running web of wrapping material or upon the wrappers of successive rod-shaped articles to simultaneously form four rows of perforations.