Steven A Lerner

US Patent:

52344720, Aug 10, 1993

Filed:

Mar 11, 1992

Appl. No.:

7/849261

Inventors:

Ramachandran Krishnamurthy - Piscataway NJ
Steven L. Lerner - Berkeley Heights NJ
Yagya Shukla - Roselle Park NJ
Alan G. Stokley - Wokingham, GB2

Assignee:

The BOC Group plc - Surrey

International Classification:

B01D 5304

US Classification:

95 98

Abstract:

A process for separation of a gas mixture containing three components, e. g. a mixture comprising hydrogen, carbon monoxide and carbon dioxide produced by steam reforming a hydrocarbon, by pressure swing adsorption is disclosed. In one embodiment of the process, the gas mixture is sequentially passed through first and second adsorptive regions each of which adsorbs a second component more strongly than a first component but less strongly than a third component, a first fraction enriched in the first component is withdrawn from the downstream end of the second region, introduction of gas mixture to the first region is stopped and the second region is closed to the first region, a second fraction enriched in the second component is withdrawn first from the upstream end of the second adsorptive region while passing gas mixture enriched in the third component into the first region from its upstream end and then from the downstream end of the first region, and withdrawing a third fraction enriched in the third component from the upstream end of the first region. The separation process is also applicable to other gas mixtures such as a mixture of hydrogen, argon, methane and nitrogen commonly available as ammonia plant purge gas from which ammonia has been removed.

US Patent:

47582529, Jul 19, 1988

Filed:

Jun 26, 1987

Appl. No.:

7/066446

Inventors:

Steven L. Lerner - Berkeley Heights NJ
Ramachandran Krishnamurthy - Piscataway NJ
Donald L. Maclean - Annandale NJ

Assignee:

The BOC Group, Inc. - Montvale NJ

International Classification:

B01D 5304

US Classification:

55 25

Abstract:

This invention relates to an energy efficient method of vacuum regenerating an adsorbent bed. In a typical process, the adsorbent bed undergoes an adsorption step, a vent step, and a vacuum purge step. According to the present invention, the energy of the usually discarded vent gas is used to raise a dense liquid from a lower tank to a higher tank. The potential energy of the raised liquid, upon returning from the higher tank to the lower tank, is used to generate a vacuum for vacuum regeneration of the adsorbent bed.

US Patent:

47325801, Mar 22, 1988

Filed:

Oct 1, 1986

Appl. No.:

6/914096

Inventors:

Ravi Jain - North Plainfield NJ
Steven L. Lerner - Berkeley Heights NJ
Robert A. Mostello - Somerville NJ
Donald L. MacLean - Annandale NJ

Assignee:

The BOC Group, Inc. - Montvale NJ

International Classification:

B01D 5304

US Classification:

55 26

Abstract:

Argon and nitrogen are produced in a basic two step process. In a first step, oxygen is removed from a compressed air feed using low temperature PSA (pressure swing adsorption). In the second step, argon and nitrogen mixture is separated by cryogenic distillation. The process yields crude liquid argon and very high purity gaseous nitrogen.

US Patent:

51125900, May 12, 1992

Filed:

Nov 14, 1988

Appl. No.:

7/270927

Inventors:

Ramachandran Krishnamurthy - Piscataway NJ
Steven L. Lerner - Berkeley Heights NJ
Yagya Shukla - Roselle Park NJ
Alan G. Stokley - Wokingham, GB2

Assignee:

The BOC Group plc - Surrey

International Classification:

B01D 5304
C01B 3118
C01B 3120
C01B 324

US Classification:

423415A

Abstract:

A process for separation of a gas mixture containing three components, e. g. a mixture comprising hydrogen, carbon monoxide and carbon dioxide produced by steam reforming a hydrocarbon, by pressure swing adsorption is disclosed. In one embodiment of the process, the gas mixture is sequentially passed through first and second adsorptive regions each of which adsorbs a second component more strongly than a first component but less strongly than a third component, a first fraction enriched in the first component is withdrawn from the downstream end of the second region, introduction of gas mixture to the first region is stopped and the second region is closed to the first region, a second fraction enriched in the second component is withdrawn first from the upstream end of the second adsorptive region while passing gas mixture enriched in the third component into the first region from its upstream end and then from the downstream end of the first region, and withdrawing a third fraction enriched in the third component from the upstream end of the first region. The separation process is also applicable to other gas mixtures such as a mixture of hydrogen, argon, methane and nitrogen commonly available as ammonia plant purge gas from which ammonia has been removed.

US Patent:

20140307735, Oct 16, 2014

Filed:

Apr 11, 2014

Appl. No.:

14/251185

Inventors:

- Bound Brook NJ, US
Steven Lerner - Bound Brook NJ, US

Assignee:

YakStack, LLC - Bound Brook NJ

International Classification:

H04L 12/18
H04L 12/931

US Classification:

370390

Abstract:

The present disclosure provides for methodologies for mass electronic communications. This is achieved using a third party site (website) where users can control contact preferences and subscribe, or opt-in, to receive certain communicational content. A user can then upload a voice message or textual/image based message which is then delivered, via the website, to the intended recipients. Authenticated users of the site can allow their personal information to remain private, while still receiving such communications.