序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
61 Inertia operated devices US34283553 1953-03-17 US2742542A 1956-04-17 GIBSON BENNETT NEILL
62 Method for initiating thermal battery having high-height drop safety feature US14828395 2015-08-17 US09841263B2 2017-12-12 Jahangir S Rastegar
A method for initiating a thermal battery including: releasing an engagement between an element and a striker mass upon an acceleration time and magnitude greater than a first threshold; and moving at least one member into a path of the element to prevent the element from releasing the striker mass only where the acceleration time and magnitude is greater than a second threshold, the second threshold being greater than the first threshold.
63 Impulse-based compact mechanical G-switch with modular design US13770989 2013-02-19 US08869700B2 2014-10-28 Jahangir S. Rastegar
A G-switch including: a base and posts, the posts having a hole; a locking ball with a portion disposed in the holes; a striker mass movably disposed relative to the posts and having a concave portion, wherein a portion of the locking balls is disposed the concave portion; a collar movable relative to the posts; a biasing element for biasing the collar in a position which retains the locking balls within the concave portions, the biasing element permitting movement of the collar to a position in which the locking balls are released from the concave portions to release the striker mass upon a predetermined acceleration profile; and a member on the striker mass and first and second electrically conductive contacts on a portion of the body, the first member opening or closing an electrical circuit between the first and second contacts upon release of the striker mass.
64 ACCELEROMETER-BASED TOUCH PAD FOR TIMING SWIMMING AND OTHER COMPETITIVE EVENTS US13548365 2012-07-13 US20130014585A1 2013-01-17 Michael Hetherington
A touchpad useful in timing competitive sporting events such as swim meets includes a touch plate having a front surface and a back surface, one or more accelerometers coupled to the touch plate, electrical circuitry in communication with the accelerometers to detect motion indicative of a user's touch, and communications circuitry to transmit information indicative of a user's touch to a display, storage device or other remote unit. The back surface of the touch plate may have resilient ridges or a backing structure that more positively ensures contact recording. The circuitry may battery powered with rechargeable batteries. The communications circuitry may use wireless RF technology such as WiFi synchronized absolute time to transmit the touch information to a central timing system. In competitive swimming events, the communications circuitry utilizes a standard Colorado Timing systems banana plug.
65 Methods and apparatus for sensing acceleration US12432358 2009-04-29 US08161879B1 2012-04-24 John Pattison
Methods and apparatus for sensing acceleration according to various aspects of the present invention comprises a non-rigid membrane and a switching latch electrically coupled to the membrane. The membrane is responsive to acceleration forces and is configured to produce a signal as a result of deflections in the membrane caused by acceleration. The signal is transmitted to the switching latch causing a change in state of the switching latch. This change in state allows a second signal to be sent to an activating device such as a squib.
66 METHODS AND APPARATUS FOR SENSING ACCELERATION US12432358 2009-04-29 US20120090490A1 2012-04-19 John Pattison
Methods and apparatus for sensing acceleration according to various aspects of the present invention comprises a non-rigid membrane and a switching latch electrically coupled to the membrane. The membrane is responsive to acceleration forces and is configured to produce a signal as a result of deflections in the membrane caused by acceleration. The signal is transmitted to the switching latch causing a change in state of the switching latch. This change in state allows a second signal to be sent to an activating device such as a squib.
67 Eddy-current-damped microelectromechanical switch US11901384 2007-09-17 US07633362B1 2009-12-15 Todd R. Christenson; Marc A. Polosky
A microelectromechanical (MEM) device is disclosed that includes a shuttle suspended for movement above a substrate. A plurality of permanent magnets in the shuttle of the MEM device interact with a metal plate which forms the substrate or a metal portion thereof to provide an eddy-current damping of the shuttle, thereby making the shuttle responsive to changes in acceleration or velocity of the MEM device. Alternately, the permanent magnets can be located in the substrate, and the metal portion can form the shuttle. An electrical switch closure in the MEM device can occur in response to a predetermined acceleration-time event. The MEM device, which can be fabricated either by micromachining or LIGA, can be used for sensing an acceleration or deceleration event (e.g. in automotive applications such as airbag deployment or seat belt retraction).
68 MEMS inertial shock bandpass filter US11444816 2006-05-26 US07559238B1 2009-07-14 Gabriel L. Smith; Daniel J. Jean
An inertial shock bandpass filter for detecting a shock event between first and second acceleration levels. The inertial shock bandpass filter includes a primary inertial element and at least one secondary inertial element supported by respective spring arrangements. The inertial elements include complementary engageable gripping surfaces, which engage in response to an acceleration above the second acceleration level to prevent movement of the primary inertial element and prevent latch engagement. The primary inertial element will, in response to an acceleration between the first and second acceleration levels, engage the latch. An acceleration level below the first acceleration level is insufficient to cause either an engagement of the gripping surfaces or a latching of the primary inertial element.
69 Eddy-current-damped microelectromechanical switch US10941447 2004-09-15 US07289009B1 2007-10-30 Todd R. Christenson; Marc A. Polosky
A microelectromechanical (MEM) device is disclosed that includes a shuttle suspended for movement above a substrate. A plurality of permanent magnets in the shuttle of the MEM device interact with a metal plate which forms the substrate or a metal portion thereof to provide an eddy-current damping of the shuttle, thereby making the shuttle responsive to changes in acceleration or velocity of the MEM device. Alternately, the permanent magnets can be located in the substrate, and the metal portion can form the shuttle. An electrical switch closure in the MEM device can occur in response to a predetermined acceleration-time event. The MEM device, which can be fabricated either by micromachining or LIGA, can be used for sensing an acceleration or deceleration event (e.g. in automotive applications such as airbag deployment or seat belt retraction).
70 MICROMACHINED SHOCK SENSOR US09873791 2001-06-04 US20020184949A1 2002-12-12 Yogesh B. Gianchandani; Shamus P. McNamara
A micromachined shock sensor has a substrate with a surface on which are formed an array of acceleration sensing units. Each sensing unit has a mount fixed to the substrate, a cantilever beam extending from the mount, and a proof mass fixed to the cantilever beam and supported above the substrate to permit translation of the proof mass and bending of the cantilever beam in a plane parallel to the substrate surface. Sensing electrodes are formed on the substrate on opposite sides of the proof mass such that displacement of the proof mass in response to acceleration brings the proof mass into contact with one or the other of the electrodes at a sufficient acceleration level, effectively closing a switch and providing an electrical output signal that can be detected. The multiple acceleration sensing units are formed to make contact at different levels of acceleration, allowing the shock sensor to allow measurements over a range of accelerations. A test electrode may be formed adjacent to the proof mass to allow the proof mass to be electrostatically drawn toward and into contact with one of the sensing electrodes to allow testing of the level of acceleration required to make contact in a particular acceleration sensing unit.
71 Miniature, planar, inertially-damped, inertially-actuated delay slider actuator US934005 1997-08-29 US6064013A 2000-05-16 Charles H. Robinson
A miniature, planar, inertially-damped, inertially-actuated delay slider uator is micromachined on a substrate and consists of a "slider", with zig-zag or stair-step-like patterns on the side edges, interacting with similar vertical-edged zig-zag patterns on "racks" which are positioned across a small gap on each side. The slider has been released from the substrate, and is captured vertically in its track by a non-interfering lattice or cover or other feature that bridges across from the top of one rack to the other. The racks are fixed to the substrate and the slider is forced axially down the "track" by an inertial load in the slider's axial direction. The slider is drawn along the track such that the "teeth" on the right edge of the slider engage with the teeth on the right rack. The slider is forced to move to the left as it slides down the faces on the right rack, until it is thrown clear of the right rack and goes across to engage similarly with the left rack. In this way the slider zig-zags under the continuing inertial forces as it also moves axially down the track toward the objective function. The time it takes to do this is the programmed delay. The objective function is anything the slider can act upon, such as a switch, a latch, a light beam, a capacitive pickup, etc.
72 Miniature, planar, inertially-damped, inertially-actuated delay slider actuator US791706 1997-01-30 US5705767A 1998-01-06 Charles H. Robinson
A miniature, planar, inertially-damped, inertially-actuated delay slider uator is micromachined on a substrate and consists of a "slider", with zig-zag or stair-step-like patterns on the side edges, interacting with similar vertical-edged zig-zag patterns on "racks" which are positioned across a small gap on each side. The slider has been released from the substrate, and is captured vertically in its track by a non-interfering lattice or cover or other feature that bridges across from the top of one rack to the other. The racks are fixed to the substrate and the slider is forced axially down the "track" by an inertial load in the slider's axial direction. The slider is drawn along the track such that the "teeth" on the right edge of the slider engage with the teeth on the right rack. The slider is forced to move to the left as it slides down the faces on the right rack, until it is thrown clear of the right rack and goes across to engage similarly with the left rack. In this way the slider zig-zags under the continuing inertial forces as it also moves axially down the track toward the objective function. The time it takes to do this is the programmed delay. The objective function is anything the slider can act upon, such as a switch, a latch, a light beam, a capacitive pickup, etc.
73 Impact contactor particularly for projectiles with an explosive charge US927653 1992-09-09 US5271329A 1993-12-21 Andre Blin; Alain Bonnet
Triggering a pyrotechnic charge. The contactor comprises:a supporting base (6), made of insulating material, having at least two conducting terminals (7 and 8),a contact sleeve (13) centered coaxially on the base, in contact with one of the terminals and having fingers urged centrifugally by elastic elements (22),a deformable conducting case (24) in contact with the second terminal,and a conducting slide (28) movable by inertia on the axis of symmetry against the action of a retaining spring (31).Application as an impact contactor for projectiles.
74 Omni-directional inertia switching device US932329 1992-08-19 US5237135A 1993-08-17 Raymond Wolski
An omni-directional inertia switching device is presented. The inertia switching device comprises a housing having a conically shaped upper portion for retaining a ball member within the housing. The ball member is supported by a flat spring having a star shaped opening therethrough. The flat star spring is comprised of electrically conductive material. A lower contact member and the conductive flat star spring are separated by an insulator except for a central opening corresponding to the portion of the flat star spring where the ball member is located. Further, the flat star spring and the lower contact member have terminals which extend from the housing for connection with an external device. The device of the present invention is actuated when a preselected amount of inertia force causes the ball to overcome the biasing forces of the flat star spring bringing the flat star spring and the lower contact member into electrical contact. The inertia switching device may be ganged to define a digital switch accelerometer, wherein each switch is configured for an incremental measurement; e.g., increments of 1 g.
75 Crash sensor US730680 1991-07-16 US5206469A 1993-04-27 Masaru Takeda; Akihiko Kuroiwa; Etsujiro Imanishi; Koji Minekubo; Tatsuo Munakata; Atsushi Taniguchi; Kazuyuki Kita; Masaharu Kakiya
The crash sensor of the present invention comprises a magnet, a sensing mass made of a ferromagnetic material and attractable by the magnet, a sleeve made of a paramagnetic material and restricting the movement of the sensing mass in one direction, a pair of strips that make a closed circuit by contact with the sensing mass having moved in one direction and a body fitted with the magnet and housing the sensing mass, the sleeve and the contacts; the crash sensor further comprising a magnetic shield made of a ferromagnetic material and covering the magnet and the body. The magnetic shield forms a closed-type magnetic field by covering the magnet and the body and forms an appropriate magnetic loop in the vicinity of the sensing mass, so that the crash sensor also acts as a magnetic shield to protect itself from being influenced by outside ferromagnetic bodies and makes effective use of the magnetic force of the magnet. The above pair of strips are fitted in the same direction vertically on the inner wall of the body, whereby they do not project out in the axial direction so that the crash sensor can be of a reduced whole length, as well as of smaller outside diameter than conventional crash sensor with its contacts positioned facing each other.
76 Method and apparatus for detecting different detonating conditions for a follow-up charge US854987 1986-04-22 US4667598A 1987-05-26 Peter Gr/o/ bler; Norbert Nibl
The conditions for detonating a follow-up charge in a dual stage weapon areetected for detonating the follow-up charge either instantaneously or after a time delay. An instantaneous detonation is caused when the dual stage weapon should not penetrate sufficiently through a target surface or when the weapon rebounds. A delayed detonation is intended when the dual stage weapon has penetrated a target. The delayed detonation shall be responsive, preferably randomly, to an approach to the weapon. This type of control of the weapon detonation in response to different detonating conditions is accomplished by using two, preferably three acceleration or vibration sensors producing signals which are evaluated for determining the respective detonating condition.
77 Multiple-stage integrating accelerometer US625326 1984-06-27 US4574168A 1986-03-04 Howard F. Devaney
An accelerometer assembly is provided for use in activating a switch in response to multiple acceleration pulses in series. The accelerometer includes a housing forming a chamber. An inertial mass or piston is slidably disposed in the chamber and spring biased toward a first or reset position. A damping system is also provided to damp piston movement in response to first and subsequent acceleration pulses. Additionally, a cam, including a Z-shaped slot, and cooperating follower pin slidably received therein are mounted to the piston and the housing. The middle or cross-over leg of the Z-shaped slot cooperates with the follower pin to block or limit piston movement and prevent switch activation in response to a lone acceleration pulse. The switch of the assembly is only activated after two or more separate acceleration pulses are sensed and the piston reaches the end of the chamber opposite the reset position.
78 Springless impact switch US901885 1978-05-01 US4174666A 1979-11-20 George K. Lucey, Jr.; Michael G. Orrell
An inertial impact switch is provided having a housing which comprises twoonductive sections electrically insulated from each other and a movable contact member engaging one section and held out of contact with the second section by means of a concentric insulating member. Interior radial "fingers" of the insulator bend in response to the spin forces of the projectile containing the switch. To provide for this sensitivity, the fingers of the insulator may have varying stiffness to provide deflection under differing spin conditions. The body of the switch may also be provided with a single grove bellows that is compressible under applied stress prior to use, moving the first section of the housing closer to the second section of the housing, thus reducing the gap between terminals.
79 Inertial switch device US22850562 1962-10-04 US3194910A 1965-07-13 EDGARTON FRANK R
80 Variable sensitivity inertia switch US74098058 1958-06-09 US3054870A 1962-09-18 BILLY WAGONER JUNIOR
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