Ram Shalvi

US Patent:

47514981, Jun 14, 1988

Filed:

Mar 11, 1986

Appl. No.:

6/838595

Inventors:

Ram Shalvi - Teaneck NJ
Rudor M. Teich - South Orange NJ
Keith Guillaume - Edison NJ

Assignee:

Tracer Electronics, Inc. - S. Orange NJ

International Classification:

G08B 2500
G08B 2600

US Classification:

340524

Abstract:

A single-wire loop alarm system in which an identification module is placed across each alarm switch. Any module which is across an open switch is powered by the loop current and, in response to a pulse count in the loop representing its address, changes the loop impedance in order to report on its status. The loop current may alternate in direction so that oppositely poled modules may be used, thus allowing a larger number of powered modules to accommodated at the same time.

US Patent:

47423340, May 3, 1988

Filed:

Aug 20, 1986

Appl. No.:

6/898099

Inventors:

Rudor M. Teich - South Orange NJ
Keith Guillaume - Edison NJ
Ram Shalvi - Teaneck NJ

Assignee:

Tracer Electronics Inc. - South Orange NJ

International Classification:

G08B 2600

US Classification:

340505

Abstract:

A single-wire loop alarm system in which the status of each alarm switch can be determined and which is relatively immune to the effects of noise. False alarms are avoided by incorporating an integrator in the loop potential test circuit; during polling, however, the integrator is switched out. Low-frequency noise is discriminated against by verifying the existence of an alarm condition; the loop current is doubled and, if the alarm condition is being caused by an impedance-introducing open alarm switch, the loop voltage change should double. Polling is made more reliable by relying on a "window" test, rather than a simple threshold test.

US Patent:

47852852, Nov 15, 1988

Filed:

Mar 18, 1987

Appl. No.:

7/027311

Inventors:

Rudor M. Teich - South Orange NJ
Keith Guillaume - Edison NJ
Ram Shalvi - Teaneck NJ

Assignee:

Tracer Electronics, Inc. - Bloomfield NJ

International Classification:

G08B 2600

US Classification:

340518

Abstract:

A parallel bus alarm system in which address signals are represented by successive voltage steps, and responses are represented by current increments. Each alarm element, in response to its addressing, controls a variable current increment to flow in the bus, the magnitude of the current increment being a function of an associated analog measurement to be reported. Each alarm element also causes a predetermined current increment to flow in the bus in response to a condition arising which requires reporting, the total current change thus being directly proportional to the number of alarm indications.

US Patent:

20210386901, Dec 16, 2021

Filed:

Jun 15, 2021

Appl. No.:

17/347950

Inventors:

- Northvale NJ, US
Ram Shalvi - Closter NJ, US

International Classification:

A61L 9/20

Abstract:

The present invention provides a lighting system for disinfection and decontamination of an air stream that is moved by an air circulation means into the interior of the lighting system through an inlet, filtered by an air filtration means, and irradiated by ultraviolet light emitted by ultraviolet light sources, and lastly exhausted via an outlet, and thereby the lighting system disinfects and decontaminates the air and adjacent surfaces. The ultraviolet light is contained within the system, so that a person adjacent to or present within a predetermined distance is not exposed to unsafe ultraviolet radiation. The light sources can be UV, UVC, Near UVA and Visible Light LEDs with a long-lasting rated life. The lighting system may be operated by a smart light switch, wireless communication of a mobile device, a smart home control appliance, and/or built-in motion sensors and software.

US Patent:

20210361816, Nov 25, 2021

Filed:

May 21, 2021

Appl. No.:

17/327122

Inventors:

- NORTHVALE NJ, US
Ram Shalvi - Closter NJ, US

International Classification:

A61L 9/20
F21V 23/04
F21V 29/61
F21K 9/232
F21V 21/26
H05B 45/18
H05B 45/50
A61L 2/26
A61L 2/24
A61L 2/10

Abstract:

The present invention provides a device for generating ultraviolet (UV) radiation whose wavelength is optimally tuned into the range of 240 to 290 nm, with peak wavelength in the range of 260 to 270 nm, which attains a Peak Germicidal Disinfection Effective Index of nearly 100%, superior to conventional UV lights and lamps. This device comprises a light-emitting diode (LED) matrix, a fan, an LED driver, a base and a motion sensor with programmable sensitivity and time delay. It may further comprise components for thermal protection and active air circulation. When operating, the device emits visible UVA radiation and blue light. With special considerations for user safety, the device effectively protects users from exposure to UV hazards and is safe to use. With the built-in thermal protection, this device may be used with either open or enclosed fixtures.