Patents by Inventor Israel M. Grinwald
Israel M. Grinwald has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 5786542Abstract: A system for clearing anti-personnel mines includes a vehicle, a blast shd on the front of the vehicle, and arms pivoted to the blast shield. A roller wheel subassembly is connected to the arms by cables or chains. Cross members fastened diagonally between the arms minimize side to side swing of the arms on the blast shield while allowing the arms to swing up and down relative to each other. The vehicle has a boom for lifting the arms and roller wheel subassembly. The arms connect to the boom by another chain or cable that slides through an eye on the boom so that the chain or cable accommodates relative vertical swing of the arms. The roller wheel subassembly has an axle and roller wheels on the axle, the inner diameter of the roller wheels being greater than the axle's diameter. Annular spacers on the axle alternate with the wheels, the spacer diameters being larger than the wheels' inner diameters but smaller than the wheels' outer diameters.Type: GrantFiled: November 4, 1996Date of Patent: July 28, 1998Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Paul A. Petrovich, John J. Schimtz, Jack G. Rodgers, Israel M. Grinwald
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Patent number: 4909128Abstract: Disclosed is a mine roller for attachment to a military vehicle such as a tank. The mine roller includes a frame vertically swingably connected to the tank and a set of disks mounted to the frame for eccentric rotation thereon. A ground engagement annulus is rotatable on the outer diametrical surface of each disk to provide rolling contact between the mine roller and the ground. The frame of the mine roller extends no further from the tank than do the annuluses, thereby minimizing interference between the frame and the ground. The mine roller also has means to limit the swinging of the mine roller relative to the tank, the limiting means including a cantilever arm or spring fixed to the mine roller frame and engagable with the tank after the mine roller swings a predetermined amount.Type: GrantFiled: November 25, 1988Date of Patent: March 20, 1990Inventor: Israel M. Grinwald
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Patent number: 4813698Abstract: Connection device for releasably attaching a mine roller assembly to a miary tank including an actuator controlled from within the tank. The actuator means includes a hydraulic cylinder exterior to the tank hull protected from projectiles by other, more durable components of the connection mechanism and includes a biasing member to maintain the connection device in an attaching mode should the cylinder fail. The connection device optionally includes a bracket which allows quick mounting or demounting of the hydraulic cylinder from the tank.Type: GrantFiled: January 29, 1988Date of Patent: March 21, 1989Assignee: The United States of America as represented by the Secretary of the ArmyInventor: Israel M. Grinwald
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Patent number: 4723473Abstract: A detachable hinge-like connection between a military tank and a mine rol assembly; the hinge connection is designed to be broken (disconnected) from a remote point, e.g. from within the tank, whereby the mine roller assembly can be left on the battlefield without exposing the tank driver to enemy fire. The hinge connection includes a hook member carried by the tank to partially encircle a hinge pin carried by the mine roller assembly. A small explosive squib is arranged to drive a latch pin out of a hole in the hook member, whereupon the hook member swings down under gravitational force, thereby breaking the hinge connection. The tank driver can detonate the explosive squib without leaving the safety of the tank.Type: GrantFiled: October 23, 1986Date of Patent: February 9, 1988Assignee: The United States Government as represented by the Secretary of the ArmyInventor: Israel M. Grinwald
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Patent number: 4693164Abstract: Mechanism for attaching a military mine roller to the front end of a miliy tank. Latch structures of simplified design are utilized to minimize the adverse effects of manufacturing tolerances on latch structure performance. Each latch structure includes an arcuate curved surface partially encircling a pin means carried by the mine roller, whereby the pin means is firmly retained against escape from the latch structure.Type: GrantFiled: May 22, 1986Date of Patent: September 15, 1987Assignee: The United States of America as represented by the Secretary of the ArmyInventor: Israel M. Grinwald
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Patent number: 4570959Abstract: An improved dolly for transporting a shelter. The dolly has bifurcated surting elements which engage alignment studs on the shelter to accurately and quickly align attachment brackets on the dolly with complimentary attachments on the shelter.Type: GrantFiled: September 13, 1984Date of Patent: February 18, 1986Assignee: The United States of America as represented by the Secretary of the ArmyInventor: Israel M. Grinwald
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Patent number: 4530411Abstract: Mechanism to be added to existing two-wheeled dolly structures used for tng military shelter units from one geographical location to another. The add-on mechanism includes a motorized wheel unit attachable to the dolly structure to facilitate manipulation of the dolly structure into precise alignment with the shelter; the add-on mechanism further includes motor means for powering a hydraulic pump used to actuate certain lift cylinders on the dolly structure. The add-on mechanisms reduce the time expenditure required to hook the dolly to the shelter and raise same into a condition suitable for towing by a military truck.Type: GrantFiled: July 18, 1983Date of Patent: July 23, 1985Assignee: The United States of America as represented by the Secretary of the ArmyInventor: Israel M. Grinwald
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Patent number: 4418852Abstract: A spare tire carrier attachable to the underside of a trailer or other vele not equipped with an interior spare tire storage space. The carrier includes three or more transversely extending roller support units located to underlie a surface of the tire when it is in its stored position. During manual movement of the spare tire to or from its stored position the rollers turn on their rotational axes to facilitate tire motion. The carrier can be constructed in different sizes for use with different vehicles and spare tire sizes. The carrier is preferably formed from standard commercially-available structural components, such as rods, bars and tubes, thereby facilitating use on military vehicles where the low volume usage does not warrant an expensive tooling investment.Type: GrantFiled: June 17, 1982Date of Patent: December 6, 1983Assignee: The United States of America as represented by the Secretary of the ArmyInventor: Israel M. Grinwald