Heinz Michelle Wolf

US Patent:

8544315, Oct 1, 2013

Filed:

Nov 19, 2010

Appl. No.:

12/950757

Inventors:

Dana Guazzo - Bridgewater NJ, US
Heinz Wolf - Hackettstown NJ, US

International Classification:

G01M 3/20

US Classification:

73 407

Abstract:

A method and apparatus for leak testing of liquid and non-liquid filled rigid and semi-rigid nonporous containers wherein a container is enclosed in a conforming test chamber and subjected to vacuum while the pressure within the chamber is monitored by an absolute pressure transducer, alone or in combination with a second differential transducer, to determine if leaks are present in the container and wherein the test apparatus or system remains under low pressure or vacuum conditions while leak tests are not actively in progress such that the system is maintained at an at-rest low vacuum condition to minimize pressure sensor drift and to eliminate build-up of vapors or gases within the apparatus or test system between tests that may hinder the speed and sensitivity of the leak tests.

US Patent:

51116847, May 12, 1992

Filed:

Nov 21, 1990

Appl. No.:

7/616840

Inventors:

Anton Stauffer - Bedford NY
Heinz Wolf - Budd Lake NJ

Assignee:

Pack Systems - Tuchahoe NY

International Classification:

G01M 336

US Classification:

73 493

Abstract:

A method and apparatus for leak testing a sealed package having at least one flexible wall portion and a sealed flange wherein at least one flexible wall portion of the package spaced from at least a seal-exposing edge of the sealed flange is gripped and pulled outwardly from the package to stress the package in tension while at least the seal-exposing edge of the sealed flange is exposed to a gas pressure equal to or greater than atmospheric pressure. The reaction of the sealed package to the stressing is then detected. The method and apparatus are useful for testing retort or aseptic pouches, cups and multi-layered trays with heat sealed lids, etc. , with or without head space. Leaks in the seal and also in areas adjacent the seal can advantageously be detected quickly and with a high degree of reliability.

US Patent:

20210293656, Sep 23, 2021

Filed:

Jun 7, 2021

Appl. No.:

17/340483

Inventors:

- Hawthorne NY, US
Andrew O'Sullivan - Brooklyn NY, US
Heinz Wolf - Hackettstown NJ, US

Assignee:

Packaging Technologies and Inspection, LLC - Hawthorne NY

International Classification:

G01M 3/40
G01M 3/26
G01M 3/04
G01M 3/16
G01N 27/00
G01N 27/60
G01N 27/20
G01M 3/02

Abstract:

A leak detection system includes a testing interface, which includes a rotation holder configured to retain and rotate a package. The testing interface includes a plunger apparatus configured to actuate a plunger to apply a pressure to the package before and/or during the package being inspected using a high voltage leak detection (HVLD) apparatus. The testing interface also includes a controller configured to operate and coordinate the operation of the testing interface with operation of the HVLD apparatus.

US Patent:

20210262889, Aug 26, 2021

Filed:

Feb 20, 2020

Appl. No.:

16/796396

Inventors:

- Hawthorne NY, US
Heinz Wolf - Hackettstown NJ, US
Ross Treloar - Tuckahoe NY, US
Sandipan Saha - Yonkers NY, US

Assignee:

Packaging Technologies and Inspection, LLC - Hawthorne NY

International Classification:

G01M 3/40
G01M 3/16
G01R 31/16

Abstract:

A leak detection system includes a high voltage leak detection (HVLD) testing system configured to inspect a package using a HVLD apparatus that includes an inspection electrode and a detection electrode. The leak detection system includes a grounding system that includes a grounding element. The grounding system is configured to remove, significantly reduce, or conduct away electric charge accumulation on the package. The leak detection system also includes a controller configured to operate and coordinate the operation of the grounding system with the operation of the HVLD testing system.

US Patent:

20210072112, Mar 11, 2021

Filed:

Oct 8, 2020

Appl. No.:

17/065607

Inventors:

- Tuckahoe NY, US
Charles STAUFFER - Berkeley CA, US
Heinz WOLF - Hackettstown NJ, US
Oliver STAUFFER - Tuckahoe NY, US

International Classification:

G01M 3/40

Abstract:

A method and device for determining the existence of a leak in a package includes generating an AC high voltage with DC high voltage offset in a circuit. A package is placed between an inspection electrode and a detection electrode, which are located within the circuit. The inspection electrode applies the AC high voltage with the DC high voltage offset to the package. Current flow through the package is then detected by the detection electrode. A detection board then processes the current flow and sends the processed signal to a programmable logic controller which determines if a leak is present in the package. If a leak is present, a signal is sent to a display to notify a user.

US Patent:

20200386650, Dec 10, 2020

Filed:

Jun 7, 2019

Appl. No.:

16/434546

Inventors:

- Tuckahoe NY, US
Andrew O'Sullivan - Brooklyn NY, US
Heinz Wolf - Hackettstown NJ, US

Assignee:

Packaging Technologies and Inspection, LLC - Tuckahoe NY

International Classification:

G01M 3/40

Abstract:

A leak detection system includes a testing interface, which includes a rotation holder configured to retain and rotate a package. The testing interface includes a plunger apparatus configured to actuate a plunger to apply a pressure to the package before and/or during the package being inspected using a high voltage leak detection (HVLD) apparatus. The testing interface also includes a controller configured to operate and coordinate the operation of the testing interface with operation of the HVLD apparatus.

US Patent:

20190376873, Dec 12, 2019

Filed:

Oct 14, 2016

Appl. No.:

16/074146

Inventors:

- Tuckahoe NY, US
Charles STAUFFER - Berkeley CA, US
Heinz WOLF - Hackettstown NJ, US
Oliver STAUFFER - Tuckahoe NY, US

International Classification:

G01M 3/40

Abstract:

A method and device for determining the existence of a leak in a package includes generating an AC high voltage with a DC high voltage offset in a circuit. A package is placed between an inspection electrode and a detection electrode, which are located within the circuit. The inspection electrode applies the AC high voltage with the DC high voltage offset to the package. Current flow through the package is then detected by the detection electrode. A detection board then processes the current flow and sends the processed signal to a programmable logic controller which determines if a leak is present in the package. If a leak is present, a signal is sent to a display to notify a user.