Walter M Lavin

US Patent:

6490959, Dec 10, 2002

Filed:

Sep 11, 2001

Appl. No.:

09/950493

Inventors:

Walter M Lavin - Wildwood NJ 08260

International Classification:

F41A 300

US Classification:

89161

Abstract:

In order to provide a gun in which the recoil force attendant with actuation is reduced, a prototype model of a telescoping barrel gun has been designed. In this design, an inner barrel, which contains and directs the projectile, is made to slide forward within an outer barrel when the gun is actuated. The motion of the inner barrel is then stopped while the projectile moves unimpeded. The telescoping barrel design functions together with a design which requires a portion of the cartridges propellant energy be used to produce a reduction in the force of the guns recoil when fired. Upon firing, some of the propellant gases are channeled forward in the gun to an air space, which lies between the two concentric barrels. The forward motion of the inner barrel forces the gases in this air space from the gun through small holes located in the distal area of the outer barrel. The discharge of these gases is rearwardly directed in order to counteract the guns recoil.

US Patent:

6964220, Nov 15, 2005

Filed:

May 10, 2004

Appl. No.:

10/842662

Inventors:

Walter M Lavin - West Wildwood NJ, US

International Classification:

F41A003/00

US Classification:

89159, 89 17, 89 1703, 42 10

Abstract:

A floating barrel gun design, a design in which a propellant gas discharge is used to counterbalance the recoil force of the gun, has been improved to include a novel automatic mechanical mechanism which allows the floating or inner barrel to be held stationary within the gun while the gas is discharged and after the discharge is complete, the barrel is released to return to its pre-actuation position. The discharge of gas is also made safer by an automatic mechanical mechanism for venting the accumulated gas, and this mechanism is activated as the projectile leaves the gun. The mechanism requires that the gas be discharged into the interior of the gun and the recoil-countering gas streams be directed toward a rearward moving breech block. The gas is discharged automatically during the firing cycle, as the firing chamber pressure falls upon the projectile exit, by venting the compressed gas through passageway nozzles which proceed through the annulus of the floating barrel and are controlled by rotatable metal plates. The discharged gas ultimately exits the gun through spaces in the outer barrel which open to the gas as the breech block moves rearward.

US Patent:

42318947, Nov 4, 1980

Filed:

Jan 17, 1980

Appl. No.:

6/112981

Inventors:

Walter M. Lavin - Horsham PA
James I. McFarlane - Warminster PA
Dennis L. Rose - Fairless Hills PA

Assignee:

Betz Laboratories, Inc. - Trevose PA

International Classification:

C23F 1118

US Classification:

252389A

Abstract:

The present invention is directed to a method of stabilizing aqueous solutions containing alkali metal sulfite or bisulfite and a catalyst therefor. The catalyzed sulfites which are of primary concern in the present instance are those which are used to inhibit or control oxygen corrosion in water treatment, particularly boiler water treatment.

US Patent:

40198596, Apr 26, 1977

Filed:

Sep 20, 1976

Appl. No.:

5/724443

Inventors:

Walter M. Lavin - Horsham PA
James I. McFarlane - Warminster PA
Dennis L. Rose - Fairless Hills PA

Assignee:

Betz Laboratories, Inc. - Trevose PA

International Classification:

C23F 1104
C02B 123
C02B 110
C02B 506

US Classification:

21 27R

Abstract:

A method of stabilizing aqueous solutions containing alkali metal sulfite or bisulfite and a catalyst therefor by incorporating in said solutions a stabilizing amount of triethylene tetramine. The catalyzed sulfites which are of primary concern in the present instance are those which are used to inhibit or control oxygen corrosion in water treatment, particularly boiler water treatment.