Source: http://www.freshpatents.com/-dt20091210ptan20090304534.php
Timestamp: 2013-05-21 02:21:24
Document Index: 148006790

Matched Legal Cases: ['art 52', 'art 62', 'art 62', 'art 62', 'art 62', 'art 65', 'art 62', 'art 65']

Electric Oscillating Drive 14 views for this patent on FreshPatents.comupdated 05/17/13
Patents sorted by company.	12/10/09 | Class 417 Monitor | RSS | Browse: Prev - Next Electric oscillating drive Abstract: An electric oscillating drive with at least one oscillating system (1), which is driven in an oscillating manner by an actuator, especially a piezo actuator (2) or an oscillating armature magnet generating periodic force pulses with a small motion amplitude with adapted natural frequency in a preset plane (31). At least one oscillating arm (30′) performing oscillating motions has a resonant mass (55′) and with a balance arm (60′), which is in mechanical driving connection with a working member (7) of a working device, especially of a pump (3), which working member is to be driven in an oscillating manner. The oscillating arm (30, 30′) is fastened to two levers of unequal length, namely a control arm (32′) and a driving lever (33′). At least one of these two levers, especially the control arm (32′), is flexurally elastic at least in some sections. Its end not connected to the oscillating arm (30′) is immovably connected to a frame part (45, 62), in which the actuator (2) is mounted, at a point located remotely from the oscillating arm (30′). The driving lever (33′) is in a motion-transmitting connection with the actuator (2) in such a way that the force pulses of the actuator (2) are sent to the oscillating arm (30′) to generate pendular oscillating motions in a direction that extends at least approximately in parallel to the direction of extension thereof in the inoperative position. ...
USPTO Applicaton #: #20090304534 - Class: 4174101 (USPTO) - 12/10/09 - Class 417 Related Terms: Natural Frequency The Patent Description & Claims data below is from USPTO Patent Application 20090304534, Electric oscillating drive.
FIGS. 7 and 8 show another embodiment with an oscillating system 1′, in which the oscillating arms 30 and 30′, the balance arms 60 and 60′ as well as the fluid pump 3 are present in the same form and arrangement as in the exemplary embodiments according to FIGS. 1 through 5. However, the piezo actuator 2 is arranged in this embodiment according to FIGS. 7 and 8 between two flexurally elastic control arms 63 and 63′, and the foot part 52 is connected in one piece to one of the oscillating arms 30 and 30′ each via flexurally elastic control arms 64 and 64′, respectively. The two driving levers 63 and 63′ are located in this embodiment between the two control arms 64 and 64′, which are in turn made integrally in one piece laterally with the foot part 62 and likewise have flat, strip-like cross sections. The piezo actuator 2 lies directly on the flat upper surface 65 of foot part 62, doing so under the elastic pressing pressure of the two likewise flat strip-like driving levers 63 and 63′, which are connected to one another in the area of the plane of symmetry 31 and lie on the piezo actuator 2 on the top side. However, it is possible to arrange an adjusting plate between the foot part 62 wand the piezo actuator 2 in this arrangement as well.
To make it possible to connect the fluid pump 3 to the foot part 62 of the oscillating system 1′ in a stable manner such that its position will be fixed, a base part 65 is provided, which accommodates the foot part 62. This base part 65 is provided on the side with a wall element 66, which has a carrier arm 67, which carryingly receives the fluid pump 3, on the concave side of the arc formed by the two driving levers 63, 63′.
In the embodiment according to FIG. 18, the two driving levers 33 and 3′ together form a semicircle 33/1 with the radius R1 and with the center of curvature M1. The ends of the two driving levers 33 and 33′ are connected each to the lower ends of the respective oscillating arms 30 and 30′ at the respective connection points 75, 75′. The ends of the driving levers 33 and 33′ connected to one another in the area of the plane of symmetry 31 lie together elastically on the piezo actuator 2, which is in turn seated on the foot part of frame 45, in this case as well. In this embodiment, the two control arms 32 and 32′ form a circular arc 32/1, which is arched opposite the semicircular arc 33/1 of the two driving levers 33 and 33′ with a radius R4, whose center of curvature M4 is located in the area of the foot part of frame 45 in the plane of symmetry 31. An abutment 35, which is rigidly or adjustably connected to the foot part of frame 45, is likewise associated here with the two control arms 32, 32′, which must be flexurally elastic in this case, just as the two driving levers 33 and 33′.
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