Spin Decay Patents (Class 102/267)
  • Patent number: 8561343
    Abstract: An apparatus to project toward a tree to disburse a pheromone, comprising: a releaser removably adjacent to a capsule via an extension; whereby said releaser and said capsule are disposed adjacent to each other in a deployable state, then the releaser separates from the capsule but is still connected via said extension whereby inertia causes said releaser to move away from said capsule into an attachment state, and related methods of applying a pheromone onto a tree branch.
    Type: Grant
    Filed: August 6, 2012
    Date of Patent: October 22, 2013
    Inventor: Brett Bunker Bunker
  • Patent number: 8234811
    Abstract: An apparatus to project toward a tree to disburse a pheromone, comprising: a releaser removably adjacent to a capsule via an extension; whereby said releaser and said capsule are disposed adjacent to each other in a deployable state, then the releaser separates from the capsule but is still connected via said extension whereby inertia causes said releaser to move away from said capsule into an attachment state, and related methods of applying a pheromone onto a tree branch.
    Type: Grant
    Filed: September 13, 2011
    Date of Patent: August 7, 2012
    Inventor: Brett Bunker
  • Patent number: 6142080
    Abstract: Apparatus mountable in a projectile for utilization with a rotor-type safing and arming mechanism for post-launch self-neutralization of a spinning projectile having a fused warhead and a stab detonator, including a launch-activated battery, an electric detonator positioned sufficiently close to the stab detonator to initiate the stab detonator upon initiation of the electric detonator, and a spin decay switch circuit operatively interconnecting a charged storage capacitor and the electric detonator upon substantial cessation of projectile spin, for delivering power sufficient to initiate the electric detonator. The apparatus includes a storage capacitor charging circuit activated by launch-induced forces. The apparatus further includes a pre-launch shorting circuit electrically connected in parallel with the electric detonator and deactivated by launch forces, and a "bleed" circuit connected in parallel with the battery activated by launch-induced forces.
    Type: Grant
    Filed: June 16, 1998
    Date of Patent: November 7, 2000
    Assignee: General Dynamics Armament Systems, Inc.
    Inventor: Richard T. Ziemba
  • Patent number: 5355801
    Abstract: The objectives of these inventions are to provide simple, reliable, and low-cost mechanical means to obtain (1) second impact detonation and (2) substantial safe arming separation from the gun for point detonating fuzes for small caliber spin stabilized shell. The first objective is attained by use of a heavy shield over the firing pin which is removable between the first and second impacts by spin forces; the second objective is attained by a centrifugally driven rotor, containing the out-of-line explosive element, which deforms a ductile material to effect the arming delay.
    Type: Grant
    Filed: June 21, 1993
    Date of Patent: October 18, 1994
    Inventors: William J. Donahue, Thomas A. Cammack, William C. Pickler
  • Patent number: 4969397
    Abstract: A grenade projectile has a projectile housing having a fragmentation length portion; an explosive charge accommodated in the projectile housing and being surrounded by the fragmentation length portion; a forwardly acting shaped charge liner bounding the explosive charge at a front end thereof, as viewed in the flight direction of the projectile; and a percussion fuse assembly accommodated in the projectile housing behind the explosive charge as viewed in the flight direction. The percussion fuse assembly includes a percussion member, a flight acceleration-responsive first safety arrangement and a centrifugal force-responsive second safety arrangement for arming the percussion member when the projectile reaches a predetermined acceleration and a predetermined spin.
    Type: Grant
    Filed: October 23, 1989
    Date of Patent: November 13, 1990
    Assignee: Rheinmetall GmbH
    Inventors: Michael Gunther, Jurgen Funk, Siegfried Quick, Hans Orth
  • Patent number: 4694752
    Abstract: This is a method for an adaptive delay time after impact of a projectile by determining the spin rate of the projectile using spin switches to set a time delay which may then be updated using a time of flight counter. This method may be used on artillery shells of varying calibers and each caliber of which has varying velocities.
    Type: Grant
    Filed: October 2, 1986
    Date of Patent: September 22, 1987
    Assignee: Motorola, Inc.
    Inventor: John D. Titus
  • Patent number: 4620483
    Abstract: A missile safe and arm system incorporates an electrically triggered explosive train that extends from the missile body to an extendable probe and back to the missile body. When the probe is in its retracted position, the explosive train, and electrical triggering circuit is interrupted and detonator firing leads are shorted and the missile is in a safe condition. Upon launching and upon the extension of the extendable probe, the explosive train and its electrical triggering circuit become aligned, the detonator shorting lead is removed, and the missile is thus armed.
    Type: Grant
    Filed: July 17, 1984
    Date of Patent: November 4, 1986
    Assignee: Unidynamics Phoenix, Inc.
    Inventor: Clarence E. Simpson
  • Patent number: 4464992
    Abstract: Impact with a resistant media at adequate forward velocity and rate of rotation causes a pivoted sector weight to shear a retaining shear pin and rotate quickly, bringing a firing pin on the sector weight into violent contact with a percussion primer and thereby igniting a fuze train or high explosive booster.
    Type: Grant
    Filed: March 14, 1983
    Date of Patent: August 14, 1984
    Assignee: Thoikol Corporation
    Inventor: Frank H. Bell
  • Patent number: 4378740
    Abstract: An out-of-line fuse for primarily ring-type, multiple point concurrent initiation, projectiles is disclosed. In the unarmed state, the detonator and booster charges are angularly displaced while located at the same radial distance from the projectile axis in adjacent radial planes. When rotation of the projectile is sensed by a plurality of centrifugally actuated fiber optic light switches arranged in a series optical relationship, an electrically activated pyrotechnic thruster is fired to move the detonator charges and the booster charges into alignment arming the projectile; the electrical circuit having been priorly energized by inertia switches sensing the thrust forces during the launching of the projectile. When rotation of the projectile substantially ceases the detonator charges are electrically fired.
    Type: Grant
    Filed: October 15, 1980
    Date of Patent: April 5, 1983
    Assignee: Calspan Corporation
    Inventor: Clayton J. Schneider, Jr.
  • Patent number: 4213395
    Abstract: The ball rotor safety and arming device of this invention includes means for rendering the friction forces which effect the alignment time of the ball rotor more reproducible and controllable reducing the dispersion of arming distances of the device and in some cases increasing the mean arming distance.
    Type: Grant
    Filed: March 3, 1978
    Date of Patent: July 22, 1980
    Inventor: David S. Breed