Patents by Inventor Steven H. Bietzer

Steven H. Bietzer 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).

  • Publication number: 20130092216
    Abstract: Systems, methods, and devices provide a solar cell module which may ensure a tight connection between a junction box and an external function module. The various embodiments provide a solar cell module having a junction box which may independently support an external function module and may firmly fix the external function module onto a base plate of the solar cell module. The various embodiments simplify the connecting structures between the external function box, the junction box, and the base plate of the solar cell module. The various embodiments provide a solar cell junction box which may enable a solar cell system to track the maximum power point of the solar cell modules in the solar cell system. In an embodiment, a junction box may include a printed circuit board (“PCB”).
    Type: Application
    Filed: September 12, 2012
    Publication date: April 18, 2013
    Applicant: ARRAY POWER INC.
    Inventors: Weiping YAN, Xiaogang ZHANG, Zixia CHEN, Zijian HUANG, Biquan LIU, Steven H. BIETZER, David R. HARGIS, Liya QIN, Weifeng SHEN, Jean-Nicolas JAUBERT, Wenda ZHENG, Guangyan LU, Chao KUANG
  • Patent number: 6177041
    Abstract: A mold for injection molding of a plastic bottle cap has a cavity which defines the outside slope of the top and skirt of the cap. A core and a core insert fixed to the top of the core define the inside of the cap and constitute a single, non-moving part. A tapered stripper ring below the cavity engages the base of the cap skirt. After the cap has been injected through a hot tip in the cavity, the cavity is retracted. The stripper ring is then elevated relative to the core by means of ejector pins. As this is proceeding, air is released under the top of the cap to break vacuum tending to hold the cap on the cap insert. The cap is thus ejected from the mold. A reduced cycle time is achieved. The wall thickness of the cap may be reduced, thus reducing material cost.
    Type: Grant
    Filed: October 13, 1998
    Date of Patent: January 23, 2001
    Assignee: Portola Packaging, Inc.
    Inventor: Steven H. Bietzer
  • Patent number: 6082567
    Abstract: A container, preferably of small capacity, such as a school milk plastic bottle, has a neck having an in-turned lip flange, a vertical surface spaced below the lip flange and an external shoulder below the vertical surface. A second external shoulder below the first-mentioned shoulder is preferably slanted upwardly-outwardly. A cap for the neck has a top and a skirt depending from the top formed with internal bead segments which snap under the first mentioned shoulder. The lower edge of the skirt fits tightly against the second shoulder to prevent the fingernails from being used to overcome the tamper-evident feature of the cap. A tear tab (preferably chevron-shaped in cross-section) depends from the skirt. An external, vertical scoreline adjoins the tab and at its upper end is adjacent a second scoreline which is formed on the interior of the top. Pulling the tab tears the skirt from the top for about 342.degree. of its circumference.
    Type: Grant
    Filed: October 23, 1997
    Date of Patent: July 4, 2000
    Assignee: Portola Packaging, Inc.
    Inventors: Steven H. Bietzer, Kurt A. Krischke, Richard E. Repp
  • Patent number: 5975320
    Abstract: A tamper-evident closure and container neck. The closure has a top and a skirt depending from the top having at least one engagement member on the interior of the skirt which cooperates with at least one engagement member on the neck to retain the closure on the container neck. The closure includes a tab to facilitate removal of the closure from the container neck. The tab includes a longitudinal axis and wall portions extending outwardly from the axis and terminating in a plane spaced from the longitudinal axis for reinforcing the tab. Frangible sections prevent removal of the cap from the neck so long as the frangible sections are intact.
    Type: Grant
    Filed: May 9, 1997
    Date of Patent: November 2, 1999
    Assignee: Portola Packaging, Inc.
    Inventors: Steven H. Bietzer, Kurt Krischke, Daniel Luch, Richard E. Repp
  • Patent number: 5887738
    Abstract: A tamper-evident, snap-on, screw-off closure which is used with a specially shaped container neck is provided with a foil liner. Once the closure is applied to the neck, the foil liner is sealed to the neck of the container. The foil liner includes a tab for removal of the seal disc from the neck. The closure is characterized by the absence of a second liner between the top of the cap and the foil liner. The closure, neck and the foil liner are formed to inhibit adherence of the tab to the cap interior and the neck exterior.
    Type: Grant
    Filed: February 28, 1997
    Date of Patent: March 30, 1999
    Assignee: Portola Packaging, Inc.
    Inventors: Steven H. Bietzer, Rawson L. Chenault, Daniel Luch, Richard E. Repp
  • Patent number: 5664694
    Abstract: A tamper-evident, snap-on, screw-off closure which is used with a specially shaped container neck is provided with a foil liner. Once the closure is applied to the neck, the foil liner is sealed to the neck of the container. The foil liner includes a tab for removal of the seal disc from the neck. The closure is characterized by the absence of a second liner between the top of the cap and the foil liner. The closure, neck and the foil liner are formed to inhibit adherence of the tab to the cap interior and the neck exterior.
    Type: Grant
    Filed: June 11, 1996
    Date of Patent: September 9, 1997
    Assignee: Portola Packaging, Inc.
    Inventors: Steven H. Bietzer, Rawson L. Chenault, Daniel Luch, Richard E. Repp
  • Patent number: 5630520
    Abstract: A tamper-evident closure and specially shaped container neck. The closure has an upper skirt with an engagement structure on the interior of the skirt which cooperates with an engagement structure on the neck. The closure and neck have tamper-evidencing portions which interengage when the closure is seated on the neck to prevent removal of the closure with the tamper-evidencing portions intact. A tear tab reinforced with a vertically extending bend is joined to the tamper-evidencing portion of the closure. The neck has at least one notch shaped and positioned to receive the tear tab when a cap is applied to the neck.
    Type: Grant
    Filed: October 26, 1994
    Date of Patent: May 20, 1997
    Assignee: Portola Packaging, Inc.
    Inventors: Daniel Luch, Richard E. Repp, Steven H. Bietzer