Detonating Patents (Class 116/83)
  • Patent number: 6774798
    Abstract: A personal alarm system for efficiently alerting individuals nearby that the user is possibly in danger. The personal alarm system includes a power source, a switch unit, and a speaker electronically connected to a control unit and positioned within an apparel member. A pin member is removably positioned within a receptacle of the switch unit with a cord member attached to the pin member. The cord member extends through an aperture within the apparel member for providing access thereto external of the apparel member. In the event of a perceived emergency, the wearer of the apparel member pulls upon the cord member thereby removing the pin member from the switch unit thereby causing the speaker to emit an audible warning sound.
    Type: Grant
    Filed: September 17, 2002
    Date of Patent: August 10, 2004
    Inventors: Robert J. Fordyce, Mark L. Yukelis
  • Patent number: 4762082
    Abstract: An alarm device for use with doors, windows, and the like for causing a loud gunshot-like signal upon unauthorized entry is disclosed. The alarm device includes a compact housing having a chamber therein containing a firing mechanism and a detonatable gas generator cartridge. The cartridge communicates with an opening in the housing whereby when the cartridge is detonated, the gases rush through the opening resulting in a loud gunshot-like report. The chamber of the housing is closed by a movable cover which is constructed to hold the firing mechanism against acting on the cartridge. The housing is shaped for mounting on a door or window surface with the cover engaging the frame of the door or another part of the window, such that when the door or window are opened the cover will move to release the firing mechanism to strike and detonate the cartridge. The alarm device is also provided with a lock to secure the cover from moving until it is desired to activate the device.
    Type: Grant
    Filed: December 7, 1987
    Date of Patent: August 9, 1988
    Inventor: Edward E. Suchevits
  • Patent number: 4146356
    Abstract: There is disclosed a multi-flashlamp article capable of providing both highly intense audible and visual signals. The article is ideally suited for use as an intrusion alarm and includes a combustible member within the assembly's light-transmittable housing. A prestressed spring actuates the combustible by deforming a tubular primer having a quantity of fulminating material therein. This deflagrating material ignites a second quantity of fulminating material within the combustible's container to effect a suitable audible signal.
    Type: Grant
    Filed: September 6, 1977
    Date of Patent: March 27, 1979
    Assignee: GTE Sylvania Incorporated
    Inventors: Paul M. Marecek, John W. Shaffer
  • Patent number: 4130081
    Abstract: A flashlamp article activation means which includes a casing, an activator movably oriented within the casing, and an engagement member for engaging the activator to cause it to move within the casing and activate the flashlamp article positioned on the casing. A helical spring is used to bias the activator away from the article. An ideal use for the invention is within an intrusion alarm system.
    Type: Grant
    Filed: June 6, 1977
    Date of Patent: December 19, 1978
    Assignee: GTE Sylvania Incorporated
    Inventors: Ronald G. Blaisdell, Harold H. Hall, Jr., Harold L. Hough
  • Patent number: 4064825
    Abstract: At least one plastic tube, is supported within the campsite ground by a double pointed support spike. On the interior of the tube of the device, is a gravity activated weight, which is supported upon a trip pin, which is slideable transversely through the tube, the pin having attached, a cord, which when struck by an intruder, will cause the trip pin to release the weight, which will strike an explosive primer, so as to alert the camper to the intruder's presence in the campsite.
    Type: Grant
    Filed: September 13, 1976
    Date of Patent: December 27, 1977
    Inventor: Steve R. Sly