Michael A Hritz

US Patent:

42920159, Sep 29, 1981

Filed:

Mar 12, 1979

Appl. No.:

6/019836

Inventors:

Michael Hritz - North Royalton OH

International Classification:

B29C 504

US Classification:

425 73

Abstract:

A method and apparatus for the rotational molding of thin-walled articles. The method is comprised of the steps of introducing a predetermined amount of plastic material into a mold, rotating the mold about a first axis at a predetermined speed, while simultaneously rocking the mold through a selective arc about a second axis which is normal to the first axis, heating the mold for curing the plastic material during the rotation and rocking, and cooling the mold and plastic material whereby the plastic material is molded to form a thin-walled object in conformance with the interior surface of the mold. The rotational molding apparatus is comprised of a heat insulating housing comprising a bottom half and a top half which may be disassociated for access to the interior of the housing. The interior of the housing contains a first frame which may be rocked about a first axis and a second mold-carrying frame which is attached to the first frame and rotates about a second axis normal to the first axis. Motors mounted exterior of the housing and operably connected to each of the frames cause the rotation and rocking of the frames.

US Patent:

20210370848, Dec 2, 2021

Filed:

Aug 15, 2021

Appl. No.:

17/402567

Inventors:

- Medina MN, US
Collin J. Gavic - Forest Lake MN, US
Ryan J. Andreae - Montrose MN, US
Michael A. Hritz - Wayzata MN, US

International Classification:

B60R 11/06
B60P 7/08

Abstract:

A grip assembly includes a first grip arm, a base member integrally formed with the first grip arm, a second grip arm movably coupled to and independently positionable relative to the first grip arm and a fastener securing the second grip arm relative to the first grip arm.

US Patent:

20200139899, May 7, 2020

Filed:

Jan 7, 2020

Appl. No.:

16/736536

Inventors:

- Medina MN, US
Collin J. GAVIC - Forest Lake MN, US
Ryan J. ANDREAE - Montrose MN, US
Michael A. HRITZ - Wayzata MN, US

Assignee:

Polaris Industries Inc. - Medina MN

International Classification:

B60R 11/06
B60P 7/08

Abstract:

A grip assembly includes a first grip arm, a base member integrally formed with the first grip arm, a second grip arm movably coupled to and independently positionable relative to the first grip arm and a fastener securing the second grip arm relative to the first grip arm.

US Patent:

20190344727, Nov 14, 2019

Filed:

May 8, 2018

Appl. No.:

15/974050

Inventors:

- Medina MN, US
Collin Jacques Gavic - Forest Lake MN, US
Ryan J. Andreae - Montrose MN, US
Michael Alan Hritz - Wayzata MN, US

Assignee:

Polaris Industries Inc. - Medina MN

International Classification:

B60R 11/06
B60P 7/08

Abstract:

A grip assembly includes a base member, an intermediate member and a first grip arm removably coupled to and independently positionable relative to the intermediate member. A second grip arm is also removably coupled to an independently positionable relative to the intermediate member.