Patents by Inventor Richard T. Mitera
Richard T. Mitera 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: 7156215Abstract: A quick change shock absorber for providing for the quick and easy removal of a shock absorber from a fixture of an industrial machine. The quick change shock absorber provides a housing having a smooth, outer bore and a blind bore adaptable to hold a fluid. A piston is slidably disposed within the bore of the housing and is engageable with a driver for movement between an extended position, wherein the piston has a portion extending outwardly from the housing, and a retracted position, wherein the piston is disposed within the housing. The outer periphery is receivable by the fixture which has a bore for complementarily receiving the outer periphery of the housing. A rubber retaining ring seated within a recess of the housing of the shock absorber creates a level of friction between the outer periphery of the housing and the fixture that constitutes a snug fit for quick change removal and replacement of the housing from the fixture.Type: GrantFiled: October 14, 2003Date of Patent: January 2, 2007Assignee: Enertrols, Inc.Inventors: Richard T. Mitera, Robert Heideman, Ronald F. Legawiec
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Patent number: 6976564Abstract: A quick change shock absorber for providing the quick and easy removal of a shock absorber from a fixture of an industrial machine. The quick change shock absorber provides a housing having a bore adaptable to hold a fluid therein. A piston is slidably disposed within the bore of the housing and is engageable with a driver for movement between an extended position, wherein the piston has a portion extending outwardly from the housing, and a retracted position, wherein the piston is disposed within the housing. A connecting member extends from the housing and is engageable with a fixture having a bore therein for releasably connecting and locating the housing to the fixture.Type: GrantFiled: December 27, 2004Date of Patent: December 20, 2005Assignee: Ace Controls, Inc.Inventors: Richard T. Mitera, Robert Heideman
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Patent number: 5407052Abstract: An improved snubber assembly for interconnecting a driving conveyor assembly to a driven conveyor assembly. The snubber assembly includes a shield tube adapted to be attached to the driven conveyor assembly, a cylinder structure, a piston, and a piston rod. The cylinder structure includes a hollow inboard end portion defining a cylinder bore and slidably received in the bore of the shield tube and a solid outboard end portion closing the outboard end of the cylinder bore and positioned outside of the tube bore for attachment to the driving conveyor assembly. The piston is slidably mounted in the cylinder bore and a clevis is secured to the outboard end of the piston rod and fixedly mounted within the bore of the shield tube by a pin passing through the walls of the tube and through the clevis.Type: GrantFiled: January 11, 1993Date of Patent: April 18, 1995Assignee: Enertrols, Inc.Inventors: Robert J. Heideman, Richard T. Mitera
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Patent number: 5159997Abstract: A miniature shock absorber including an outer tubular housing, an inner tubular housing positioned within the outer tubular housing to define a pressure chamber within the inner housing and an annular accumulator chamber between the housings, a piston mounted for movement in the inner tubular housing, and a piston rod extending out of the front end of the tubular housings for impact by an object to be decelerated. A needle valve is positioned in the rear end of the shock absorber for coaction with an axial passage defined at the rear end of the pressure chamber. The needle valve is threadably received in the rear end wall of the shock absorber and includes an external knob to threadably move the needle valve relative to the axial passage to thereby vary the resistance offered to an impacting object.Type: GrantFiled: October 31, 1990Date of Patent: November 3, 1992Assignee: Enertrols, Inc.Inventors: Robert J. Heideman, Richard T. Mitera
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Patent number: 5147017Abstract: A shock absorber of the linear deceleration type in which the housing includes a forward reduced diameter threaded portion and a fixed flange at the rear end of the housing. This arrangement combines the advantages of the primary type of shock absorber and the fixed flange type of shock absorber and allows the invention shock absorber to be mounted in a wide variety of work situations with the mounting in each situation providing a positive position of the shock absorber relative to the mounting structure so that the shock absorber may be exchanged without fear of losing the precise positioning of the shock absorber relative to the object to be decelerated and with the mounting in each situation allowing the ready provision of a stop member to accurately position the component being stopped and to assure that the shock absorber will not bottom out internally.Type: GrantFiled: May 8, 1989Date of Patent: September 15, 1992Assignee: Enertrols, Inc.Inventors: Robert J. Heideman, Richard T. Mitera
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Patent number: 4694939Abstract: A shock absorber assembly of the so-called primary type in which the outer cylinder includes a central main body smooth walled cylindrical portion and reduced diameter threaded portions are provided at each end of the main body portion for mounting purposes. The assembly of the invention includes a stop collar which is adapted to be threaded onto the front reduced diameter threaded portion of the shock absorber and which has a length which is precisely dimensioned relative to the effective length and stroke of the shock absorber such that the object hitting the impact pad of the shock absorber will encounter the front annular edge of the stop collar just prior to bottoming of the piston of the shock absorber against the end wall of the cylinder.Type: GrantFiled: May 3, 1985Date of Patent: September 22, 1987Assignee: Enertrols, Inc.Inventors: Robert J. Heideman, Richard T. Mitera