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| Number | Title | Issue Date |
| 5989016 | High efficiency photographic flash lamp A photographic flash lamp having an envelope defining a chamber, at least a portion of the envelope being transparent. A support mesh is positioned within the chamber and has a first portion out of contact with the remainder of the lamp. Suitable combusti... | 11/23/1999 |
| 5892992 | Photoflash unit A photoflash unit includes a housing with an internal chamber containing a charge material. The housing's base has an opening. A primer is placed over or proximate to this opening. An anvil is placed over the material and a burn-away sheet is placed over ... | 04/06/1999 |
| 5871346 | Flashlamp array venting structure A compact flash lamp array includes a housing defining a plurality of cavities, each cavity having a light emitting opening and an exhaust vent and containing a combustible mass. A transparent cover is fixed over the light emitting opening and means are p... | 02/16/1999 |
| 5871345 | Percussively fired flash lamp array A compact flash lamp array includes a housing defining a plurality of cavities. Each cavity has a light emitting opening and a primer vent opposite the light emitting opening. A combustible mass is deposited in each cavity over the primer vent and a prime... | 02/16/1999 |
| 5871344 | Flash lamp array with porous vent A compact flash lamp array includes a housing defining a plurality of cavities, with each cavity having a light emitting opening and a combustible mass deposited in each cavity. A firing means such as an electrically heated filament or percussive primer i... | 02/16/1999 |
| 4277234 | Percussive flashcube arrangement A plurality of flash lamps have percussive ignition tubes mounted in a base member. Striker springs for the lamps are cocked behind posts extending from the base member, and an opening through the base member beneath each striker spring permits a trigger ... | 07/07/1981 |
| 4230450 | Intrusion alarm safety A mechanism for activating a plurality of flashlamps in a flashlamp article (e.g., MAGICUBE) in response to external actuation (e.g., the opening or closing of a door) thereof. To prevent accidental actuation, the mechanism includes a safety device in the... | 10/28/1980 |
| 4201540 | Percussively ignited photoflash lamp and method of making same A percussively-ignited photoflash lamp having an hermetically-sealed glass envelope containing no glass-to-metal seals therein. Ignition of the lamp is achieved by applying a percussive force (e.g. striking) to an external surface of the envelope which re... | 05/06/1980 |
| 4152106 | Percussively-ignitable flashlamp assembly and selective firing mechanism therefor A flashlamp assembly which utilizes a plurality of percussively-ignitable flashlamps disposed on an elongated support member. Firing of the flashlamps is accomplished using a spring-loaded ratchet, a movable carriage, and a striking mechanism, e.g. helica... | 05/01/1979 |
| 4152105 | Percussively-ignitable flashlamp assembly and selective firing mechanism therefor utilizing movable retention means An improved flashlamp assembly which utilizes a plurality of percussively-ignitable flashlamps disposed on an elongated support member. Firing of the flashlamps is accomplished using a spring-loaded ratchet, a movable carriage, and a striking mechanism, e... | 05/01/1979 |
| 4147497 | Hand-operable signal device using percussively-ignitable flashlamps A signal device which utilizes a plurality, e.g., ten, of percussively-ignitable flashlamps and is designed for single-handed operation. The device also comprises a body member which includes a handle portion and a support portion for having the lamps mou... | 04/03/1979 |
| 4146356 | Flashlamp article having internally located combustible member 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 housi... | 03/27/1979 |
| 4130083 | Activating mechanism for flashlamp article Activation means for activating at least one percussive flashlamp unit located within a flashlamp article. An activator moves within a casing when released by a pivotal retaining arm to engage and effect release of the flashlamp unit's striker spring. The... | 12/19/1978 |
| 4116615 | Door-actuated activation means for flashlamp article Means for activating a multilamp flashlamp article in response to movement of a door. An activator having several upstanding engagement members is operatively joined to the base portion of a two-part housing. Movement of a pivoted arm portion of the housi... | 09/26/1978 |
| 4116616 | Flashlamp assembly utilizing disposable flashlamp article A two-part flashlamp assembly which comprises an actuating mechanism and a disposable flashlamp article containing therein several, e.g. ten, percussively-ignitable flashlamps. The flashlamp article is designed for easy positioning on and removal from the... | 09/26/1978 |
| 4113420 | Flashlamp assembly with tapered housing A disposable, manually operable flashlamp assembly which uses a percussively-ignitable flashlamp. The assembly includes a housing with a tapered end and a tubular light-transmitting end in which is positioned the flashlamp's envelope. The tapered end cock... | 09/12/1978 |
| 4101259 | Multilamp photoflash assembly with rotatable actuator A multilamp photoflash assembly comprising a housing defining two adjacent regions therein, a plurality of flashlamps within one of said regions having at least one pre-energized striking mechanism associated with each of said lamps, and a rotatable actua... | 07/18/1978 |
| 4096549 | Multilamp photoflash assembly A photoflash assembly which utilizes a plurality of percussive flashlamps in one region of the assembly's housing and a plurality of percussive flashlamps in a second region separate from the first. The lamps in the first region are fired when the strikin... | 06/20/1978 |
| 4078881 | Photoflash lamp An improved wire anvil member for a percussion ignitable type flash lamp is described having projection means to deflect hot primer particles upon ignition but which has openings permitting some of the hot primer particles to pass through for improved ign... | 03/14/1978 |
| 4060372 | Self-defense apparatus comprising flashcube light source A self-defense apparatus has a hand-held housing formed with thin neck adapted to be held between two fingers and provided on its back with a button that when depressed fires one or all of the photoflash lamps of a nonbattery type flash cube. Means is pro... | 11/29/1977 |
| 4055759 | Signal device using percussive flashlamps A signal device comprising a partially transparent package containing a plurality of percussively-ignitable flashlamps arranged in an array with respectively associated preenergized striker springs, and a movable member for sequentially releasing the stri... | 10/25/1977 |
| 4045156 | Photoflash lamp A photoflash lamp having an envelope composed of a crystallized glass which exhibits high refractoriness and mechanical strength and minimizes the propagation of flaws. The thermal expansion coefficient of the glass permits a match seal to commonly employ... | 08/30/1977 |
| 4038020 | Photoflash lamp A photoflash lamp having a borosilicate glass envelope with a relatively high coefficient of thermal expansion and a depending metal primer tube, or set of lead-in wires, sealed to the glass envelope. The envelope maintains or enhances strong containment ... | 07/26/1977 |
| 3980421 | Flash lamp unit A flash lamp unit having at least one row of flash lamps which are arranged on a common elongate support and which can be fired by a stroke against a lamp portion, which flash lamp unit comprises a number of striker springs which are locked in the pre-ene... | 09/14/1976 |
| 3959525 | Method of coating photoflash lamp A method of coating the glass envelope of a photoflash lamp with a thermoplastic material, the method comprising: preheating the glass envelope at a predetermined temperature for approximately one minute; immersing the heated envelope into a fluidized bed... | 05/25/1976 |
| 3955911 | Percussion flashlamp The invention relates to a percussion flash-lamp which comprises a lamp envelope and a metal tube sealed thereto, in which tube an anvil and an ignition mass are provided. At its end remote from the lamp envelope the metal tube comprises a cylindrical nar... | 05/11/1976 |
| 3947222 | Photographic flashlamp unit A multilamp photographic flashlamp unit, the lamps of which are of the percussive primer type, having self-contained means in the form of a self-latching folded torsional spring for firing each of said lamps and featuring a short latch and a spring format... | 03/30/1976 |
| 3947221 | Personal protection device using flashcubes An attachment for converting a standard camera flashbulb unit into a personal defense device for use against criminals. The attachment consists of a support element adapted to be attached to a standard flashbulb unit, the support element being provided wi... | 03/30/1976 |
