Larry Joel Weinstein
Engineers at Buckhorn Way, Littleton, CO

License number
Colorado 23484
Issued Date
May 24, 1985
Renew Date
Nov 1, 2015
Expiration Date
Oct 31, 2017
Type
Professional Engineer
Address
Address
13148 W Buckhorn Way W Buckhorn Way, Littleton, CO 80127

Professional information

Larry Weinstein Photo 1

Portable Batt Cutter

US Patent:
6170369, Jan 9, 2001
Filed:
Nov 3, 1998
Appl. No.:
9/185427
Inventors:
Larry J. Weinstein - Littleton CO
Robert J. Allwein - Littleton CO
John A. Fry - Conifer CO
Vern C. Plotts - Littleton CO
Jo M. Teague - Littleton CO
William H. Olbert - Littleton CO
Assignee:
Johns Manville International, Inc. - Denver CO
International Classification:
B26D 100
US Classification:
83 13
Abstract:
A portable batt cutter custom cuts standard width, continuous, extended length fibrous insulation blankets at a construction site to form batts with specific dimensions corresponding to the dimensions of the structural framework cavities to be insulated. The portable batt cutter includes storage for retaining a fibrous insulation blanket; a feed mechanism for feeding the fibrous insulation blanket from the storage to a transverse cutter; and the transverse cutter which makes a transverse cut across the width of the fibrous insulation blanket to determine the length of the batt. The portable batt cutter may also include a cutter for making a longitudinal cut in the fibrous insulation blanket to form a batt having a width less than the width of the fibrous insulation blanket and a measuring device to measure the length of the batt prior to forming the transverse cut in the fibrous insulation blanket. The portable batt cutter has a size and weight enabling the cutter to be readily moved from construction site to construction site.


Larry Weinstein Photo 2

Pre-Cut Fibrous Insulation Blanket

US Patent:
6670011, Dec 30, 2003
Filed:
Jan 24, 2001
Appl. No.:
09/770040
Inventors:
Larry J. Weinstein - Littleton CO
Robert J. Allwein - Highlands Ranch CO
Assignee:
Johns Manville International, Inc. - Denver CO
International Classification:
B32B 310
US Classification:
428 43, 428 56, 524041
Abstract:
An elongated fibrous insulation blanket is pre-cut for custom fitting the insulation blanket into wall, floor, ceiling and roof cavities of different widths formed by the framework of a building. The blanket has at least one, preferably two or three, series of cuts extending between major surfaces of the blanket with successive cuts of each series of cuts being separated by a series of separable connectors located intermediate the major surfaces of the blanket. Each series of separable connectors hold together adjacent sections of the blanket for handling, but are separable by hand so that the blanket can be handled as a unit for insulating a cavity having a predetermined width or easily separated by hand into two or more sections at one or more of the series of separable connectors for insulating a cavity having a lesser width. Either major surface of the blanket may have a facing bonded thereto with one or more perforated lines or overlapping tabs in the facing permitting the facing to be separated by hand at each series of cuts and separable connectors. Preferably, the perforations of any perforated line(s) in the facing are closed by the bonding agent bonding the facing to the blanket so that the facing functions as a vapor barrier in spite of the perforations.


Larry Weinstein Photo 3

Facings For Pre-Cut Fibrous Insulation Blankets

US Patent:
6551677, Apr 22, 2003
Filed:
Nov 28, 2001
Appl. No.:
10/011851
Inventors:
Larry J. Weinstein - Littleton CO 80127
Robert J. Allwein - Highlands Ranch CO 80126
International Classification:
B32B 310
US Classification:
428 43, 428124, 428126, 428130, 428195
Abstract:
An elongated fibrous insulation blanket is pre-cut for custom fitting the insulation blanket into wall, floor, ceiling and roof cavities of different widths formed by the framework of a building. The blanket has at least one, preferably two or three, series of cuts extending between major surfaces of the blanket with successive cuts of each series of cuts being separated by a series of separable connectors located intermediate the major surfaces of the blanket. Each series of separable connectors hold together adjacent sections of the blanket for handling, but are separable by hand so that the blanket can be handled as a unit for insulating a cavity having a predetermined width or easily separated by hand into two or more sections at one or more of the series of separable connectors for insulating a cavity having a lesser width. Either major surface of the blanket may have a facing bonded thereto with one or more perforated lines or overlapping tabs in the facing permitting the facing to be separated by hand at each series of cuts and separable connectors. Preferably, the perforations of any perforated line(s) in the facing are closed by the bonding agent bonding the facing to the blanket so that the facing functions as a vapor barrier in spite of the perforations.


Larry Weinstein Photo 4

Compression-Cutting Assembly And Method

US Patent:
7066065, Jun 27, 2006
Filed:
Jan 10, 2005
Appl. No.:
11/032361
Inventors:
Robert J. Allwein - Littleton CO, US
Blake B. Bogrett - Littleton CO, US
Larry J. Weinstein - Littleton CO, US
Assignee:
Johns Manville - Denver CO
International Classification:
B26D 7/08
US Classification:
83 19, 83176
Abstract:
At least one longitudinally extending series of cuts and separable connectors is formed in a fibrous insulation blanket with one or more rotating compression-cutting blades and a cooperating anvil to form separable blanket sections in the insulation blanket. The size and configuration of the teeth and notches in the compression-cutting blade, which may be determined through the use of an empirical equation, insure that the insulation blanket has the integrity to be handled and installed as a unit, but can be separated by hand into the blanket sections. The anvil has a moving surface that drives the compression-cutting blade at the velocity blanket is being fed between the cutting blade and the anvil.


Larry Weinstein Photo 5

Pre-Cut Fibrous Insulation For Custom Fitting Wall Cavities Of Different Widths

US Patent:
2005023, Oct 27, 2005
Filed:
Jun 27, 2005
Appl. No.:
11/167366
Inventors:
Robert Allwein - Highlands Ranch CO, US
Larry Weinstein - Littleton CO, US
International Classification:
E04C001/00
US Classification:
052098000, 428043000
Abstract:
An elongated fibrous insulation blanket is pre-cut for custom fitting the insulation blanket into wall, floor, ceiling and roof cavities of different widths formed by the framework of a building. The blanket has one or more cuts extending for the length of the blanket which separate the blanket into two or more longitudinally extending sections. Adjacent sections of the blanket are joined together along the cut(s) by separable adhesive connectors which hold together the sections of the blanket for handling, but are separable by hand along the cut(s) so that the blanket can be handled as a unit for insulating a cavity having a predetermined width or easily separated by hand into two or more sections at a cut for insulating a cavity having a lesser width. The pre-cut insulation blanket may have a facing sheet, overlaying and bonded to a major surface of the blanket, that is separable by hand along the cut(s).


Larry Weinstein Photo 6

Pre-Cut Fibrous Insulation For Custom Fitting Wall Cavities Of Different Widths

US Patent:
6083594, Jul 4, 2000
Filed:
Oct 7, 1998
Appl. No.:
9/167783
Inventors:
Larry J. Weinstein - Littleton CO
Robert J. Allwein - Littleton CO
John A. Fry - Conifer CO
Vern C. Plotts - Littleton CO
Jo M. Teague - Littleton CO
William H. Olbert - Littleton CO
Assignee:
Johns Manville International, Inc. - Denver CO
International Classification:
B32B 300
US Classification:
428 43
Abstract:
A fibrous insulation blanket is pre-cut for custom fitting the insulation blanket into structural framework building cavities of different widths. The width of the blanket is substantially equal to the width of a standard cavity to be insulated by the blanket and the blanket has one or more longitudinally extending cuts in a first major surface of the blanket. The cut(s) have a depth greater than one half of the thickness of the blanket and less than the thickness of the blanket whereby the blanket can be handled as a unit for insulating a cavity having a standard cavity width or easily torn apart at a cut by hand for insulating a cavity having less than a standard cavity width. The second major surface of the blanket may have a facing bonded thereto with one or more perforated lines in the facing aligned with the cut(s) to facilitate tearing apart the blanket by hand if required. Preferably, the perforations of the perforated line(s) are closed by the bonding agent bonding the facing to the blanket so that the facing functions as a vapor barrier in spite of the perforations.


Larry Weinstein Photo 7

Pre-Cut Fibrous Insulation For Custom Fitting Wall Cavities Of Different Widths

US Patent:
6165305, Dec 26, 2000
Filed:
Mar 10, 2000
Appl. No.:
9/522976
Inventors:
Larry J. Weinstein - Littleton CO
Robert J. Allwein - Littleton CO
John A. Fry - Conifer CO
Vern C. Plotts - Littleton CO
Jo M. Teague - Littleton CO
William H. Olbert - Littleton CO
Assignee:
Johns Manville International, Inc. - Denver CO
International Classification:
B32B 3108, B32B 3112
US Classification:
156257
Abstract:
A fibrous insulation blanket is pre-cut for custom fitting the insulation blanket into structural framework building cavities of different widths. The width of the blanket is substantially equal to the width of a standard cavity to be insulated by the blanket and the blanket has one or more longitudinally extending cuts in a first major surface of the blanket. The cut(s) have a depth greater than one half of the thickness of the blanket and less than the thickness of the blanket whereby the blanket can be handled as a unit for insulating a cavity having a standard cavity width or easily torn apart at a cut by hand for insulating a cavity having less than a standard cavity width. The second major surface of the blanket may have a facing bonded thereto with one or more perforated lines in the facing aligned with the cut(s) to facilitate tearing apart the blanket by hand if required. Preferably, the perforations of the perforated line(s) are closed by the bonding agent bonding the facing to the blanket so that the facing functions as a vapor barrier in spite of the perforations.


Larry Weinstein Photo 8

Insulation Batt And Method Of Making The Batt

US Patent:
2003002, Jan 30, 2003
Filed:
Jul 24, 2001
Appl. No.:
09/912290
Inventors:
Blake Bogrett - Littleton CO, US
Robert Allwein - Highlands Ranch CO, US
Larry Weinstein - Littleton CO, US
International Classification:
D04H001/00, D04H003/00, D04H005/00, D04H013/00, B29B009/00, C03B037/04
US Classification:
442/327000, 442/331000, 442/333000, 065/455000, 264/006000
Abstract:
Resilient fibrous insulation batts are formed with the fibers of the batts being randomly oriented and entangled together and predominately lying in planes that extend substantially perpendicular to the major surfaces and the end surfaces of the batts and substantially parallel to the lateral surfaces of the batts to facilitate a widthwise compression of the batts. The batts are formed by collecting fibers into a blanket with the fibers being collected in layers lying in planes extending substantially parallel to the major surfaces of the blanket and the blanket having a thickness equal to the widths of the batts to be formed. The blanket is then cut longitudinally and transversely, in directions perpendicular to the major surfaces of the blanket, into sections having thicknesses and lengths equal to those of the batts to complete the formation of the batts.


Larry Weinstein Photo 9

Compression-Cutting Assembly And Method

US Patent:
6854369, Feb 15, 2005
Filed:
Apr 1, 2002
Appl. No.:
10/114618
Inventors:
Robert J. Allwein - Littleton CO, US
Blake B. Bogrett - Littleton CO, US
Larry J. Weinstein - Littleton CO, US
Assignee:
Johns Manville International, Inc. - Denver CO
International Classification:
B26D007/08
US Classification:
83 19, 83176
Abstract:
At least one longitudinally extending series of cuts and separable connectors is formed in a fibrous insulation blanket with one or more rotating compression-cutting blades and a cooperating anvil to form separable blanket sections in the insulation blanket. The size and configuration of the teeth and notches in the compression-cutting blade, which may be determined through the use of an empirical equation, insure that the insulation blanket has the integrity to be handled and installed as a unit, but can be separated by hand into the blanket sections. The anvil has a moving surface that drives the compression-cutting blade at the velocity blanket is being fed between the cutting blade and the anvil.


Larry Weinstein Photo 10

Apparatus For Applying Tape Material In Continuously Advancing Sheet Material

US Patent:
4227960, Oct 14, 1980
Filed:
Feb 14, 1979
Appl. No.:
6/012084
Inventors:
Romain E. Loeffler - Littleton CO
Calvin P. Sorensen - Toledo OH
Larry J. Weinstein - Littleton CO
Assignee:
Johns-Manville Corporation - Denver CO
International Classification:
B32B 3100, B32B 3104
US Classification:
156519
Abstract:
A web of jacketing material is unwound from a reservoir thereof and conveyed at constant speed. A double sided, pressure-sensitive adhesive strip, having one side protected by a removable sheet covering, conveyed in a direction normal to that of the jacketing material, is cut to predetermined lengths, positioned subjacent to and then applied across the width of the jacketing material at predetermined intervals. The jacketing material is sheared into sections by making cuts across the material along the middle of the adhesive strip and at a line midway between adhesive strips.