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Mark A Leimer

from Fort Wayne, IN
Age ~62
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Also known as:
Mark M Skinner
Phone and address:
11807 Dorsay Ct, Fort Wayne, IN 46845
Related to:
Irene JohnsonIrene R CoolickAshton JohnsonGinger Timney, 49Kent GardnerRebecca L Polderman, 46Angela Leimer, 31
Connected to:
Leanna D Leimer, 47Robyn L Leimer, 65Roland D Leimer, 92Travis L Leimer, 42Brittany A Leimgruber, 33David P Leimgruber, 43Laura L Leimgruber, 61Robert C Leimgruber, 70Thomas R Leimgruber, 46Eric P Leimkuehler, 38

Mark Leimer Phones & Addresses

  • 11807 Dorsay Ct, Fort Wayne, IN 46845
  • 6326 Midchannel Way, Fort Wayne, IN 46845 (260) 482-8829
  • Avilla, IN
  • 18208 Richey Ln, Huntertown, IN 46748 (260) 637-5321
  • 2213 Landmark Dr, Lapeer, MI 48446 (810) 664-0469
  • Madison Heights, MI
  • Walled Lake, MI

Work

Company: Magna international Position: Product engineer

Industries

Automotive

Resumes

Resumes

Mark Leimer Photo 1

Product Engineer

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Location:
Fort Wayne, IN
Industry:
Automotive
Work:
Magna International
Product Engineer

Business Records

Name / Title
Company / Classification
Phones & Addresses
Mark Leimer
Director
Summit City Chrous
Chrous
2501 S Harrison St, Fort Wayne, IN 46807

Publications

Us Patents

Service Tool For Removal Of Valve Seal Assembly

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US Patent:
6415487, Jul 9, 2002
Filed:
May 31, 2001
Appl. No.:
09/871050
Inventors:
Mark Alan Leimer - Fort Wayne IN
Assignee:
Dana Corporation - Toledo OH
International Classification:
B23P 1904
US Classification:
292131, 29219, 29270, 29278
Abstract:
A service tool for dislodging circumferentially spaced, longitudinally extending fingers of a flangeless retainer of a valve stem seal from a valve guide of an internal combustion engine, the guide of the type having circumferential detents for retaining radially inwardly turned ends of the fingers. The tool includes an exterior shell formed of two symmetrical halves divided along a longitudinal axis. The shell is coupled to a cylindrical puller element that is encased within and axially movable in the shell; the puller element also comprises symmetrical halves longitudinally divided along same axis. The puller element halves are hinged, and each of the puller halves contain gear teeth for reacting with separate worm gears contained in shell halves and attached to levers. Manual movement of the levers causes cams in radially inwardly turned arms at opposite end of the puller to dislodge the fingers of the seal retainer.

Molded Rubber Jacket With Fabric Reinforcement For Valve Stem Seal

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US Patent:
6527275, Mar 4, 2003
Filed:
May 16, 2001
Appl. No.:
09/858618
Inventors:
Mark A. Leimer - Fort Wayne IN
Assignee:
Dana Corporation - Toledo OH
International Classification:
F02F 1100
US Classification:
277502, 277628, 277651, 1231886, 251214
Abstract:
An elastomeric valve stem seal component is adapted for installation over a valve guide of an internal combustion engine. The seal component incorporates fabric reinforcement within an annular jacket body of the component. In one preferred form, the fabric is positioned intermediate two elastomeric layers of the seal body; i. e. between an inner layer and an outer layer. One preferred manufacturing method provides extrusion of a tube having a fabric reinforcement layer already provided between inner and outer layers. A cutting die incorporates a push ring adapted to move the component along a staged molding assembly process. A series of threaded core pins are utilized for conveyance of the component in the fabrication process, which includes extruding a rubber tube and cover over a series of threaded core pins, cutting a portion of the rubber tube to a predetermined length, and molding the predetermined length to produce the component.

Valve Stem Seal Assembly With Integral Bottom Seal

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US Patent:
6571761, Jun 3, 2003
Filed:
Jan 31, 2002
Appl. No.:
10/066425
Inventors:
Mark Alan Leimer - Fort Wayne IN
Assignee:
Dana Corporation - Toledo OH
International Classification:
F02N 300
US Classification:
1231886
Abstract:
A valve stem seal assembly includes a retainer with an elastomeric seal body bonded to the interior of the retainer. The seal body includes first and second annular sealing members that engage a valve stem and valve guide, respectively. The seal body also includes a third annular sealing member that protrudes slightly below a bottom surface of a lower flanged portion of the retainer, adapted to engage a cylinder head. Poor machining of the valve guide, and or the cylinder head, often creates a leak path for oil to flow beneath the seal, and through openings between valve guide and cylinder head. The third annular sealing member seals the leak path. The elastomeric seal body also includes axially disposed ribs near the bottom of the retainer with window-like exposed metal spacer areas between ribs, which lowers cost of the seal assembly through reduced amount of elastomeric material required for manufacture.

Valve Seal Assembly With Spring Finger Retainer

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US Patent:
6609700, Aug 26, 2003
Filed:
May 31, 2001
Appl. No.:
09/871052
Inventors:
Mark Alan Leimer - Fort Wayne IN
Assignee:
Dana Corporation - Toledo OH
International Classification:
F16K 3144
US Classification:
251214, 251337, 1231886, 277502
Abstract:
A valve stem seal assembly for an internal combustion engine includes an elastomer seal body and a metal retainer adapted to hold the seal body in place over a valve guide. The circumferential seal body includes an aperture containing at least one radially inwardly directed sealing lip adapted to engage an engine valve stem to minimize escape of oil lubricant from the engine, particularly along a path between the valve guide and the reciprocally moving valve stem. The seal body contains an annular exterior groove adapted to receive an end wall in the upper extremity of the retainer. The retainer, formed of spring metal, comprises a cylindrical body containing a plurality of axially depending resilient fingers. The bottom extremities of the fingers have inwardly turned ends adapted to mechanically engage a circumferentially disposed groove or a step of a boss formed in the exterior cylindrical surface of the valve guide.

Valve Stem Seal Assembly With Locator System

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US Patent:
6647943, Nov 18, 2003
Filed:
Jul 31, 2001
Appl. No.:
09/919416
Inventors:
Mark A. Leimer - Fort Wayne IN
Mark A. Stamback - Avilla IN
Robert W. Lehmann - Fort Wayne IN
Assignee:
Dana Corporation - Toledo OH
International Classification:
F01L 700
US Classification:
12319017, 1231886
Abstract:
A valve stem seal component overcomes potential orientation misplacement, particularly in cases where no valve stem seal is to be used on an adjacent valve. The component includes an integral locator feature for assuring proper installation atop a valve guide of an internal combustion engine. A plurality of such seal components are employed per engine, each component designed for insertion over at least the intake valve guide of each cylinder. Each component includes a valve stem seal module adapted to be installed over the intake valve guide. A locator is attached to the module via a radial connection portion that extends between the module and locator. The radial connection portion includes an arcuate edge that fits in only one orientation against a curvilinear edge of a boss on the cylinder head. In one described embodiment, the locator is a circular ring adapted to be installed over an exhaust guide.

Molded Rubber Jacket With Fabric Reinforcement For Valve Stem Seal

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US Patent:
6659469, Dec 9, 2003
Filed:
Feb 6, 2003
Appl. No.:
10/360663
Inventors:
Mark A. Leimer - Fort Wayne IN
Assignee:
Dana Corporation - Toledo OH
International Classification:
F02F 1100
US Classification:
277502, 277301, 264262, 264266, 264257
Abstract:
An elastomeric valve stem seal component is adapted for installation over a valve guide of an internal combustion engine. The seal component incorporates fabric reinforcement within an annular jacket body of the component. In one preferred form, the fabric is positioned intermediate two elastomeric layers of the seal body; i. e. between an inner layer and an outer layer. One preferred manufacturing method provides extrusion of a tube having a fabric reinforcement layer already provided between inner and outer layers. A cutting die incorporates a push ring adapted to move the component along a staged molding assembly process. A series of threaded core pins are utilized for conveyance of the component in the fabrication process, which includes extruding a rubber tube and cover over a series of threaded core pins, cutting a portion of the rubber tube to a predetermined length, and molding the predetermined length to produce the component.

Valve Stem Seal Assembly With Valve Guide Retainer

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US Patent:
6679502, Jan 20, 2004
Filed:
Aug 28, 2001
Appl. No.:
09/942020
Inventors:
Mark Alan Leimer - Fort Wayne IN
Assignee:
Dana Corporation - Toledo OH
International Classification:
F02F 1100
US Classification:
277502, 12318804
Abstract:
A valve stem seal assembly for an internal combustion engine includes an elastomer seal body and a metal retainer adapted to secure the seal body in place over a valve guide. The cylindrical seal body has an aperture with at least one radially inwardly directed sealing lip adapted to engage a reciprocally movable valve stem to minimize escape of oil lubricant from the engine along a path between the valve guide and stem. The retainer, formed of a spring metal cylindrical body adapted to frictionally retain the seal body at its upper end, contains first and second sets of axially depending resilient fingers at its lower end. The first set of fingers mechanically engages and supports a unique valve guide member within a valve guide aperture of a cylinder head deck, while the second set of fingers supports the seal assembly directly against the head deck under a valve spring.

Valve Stem Seal With Built-In Sprue

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US Patent:
6761141, Jul 13, 2004
Filed:
Dec 10, 2002
Appl. No.:
10/315444
Inventors:
Mark Alan Leimer - Fort Wayne IN
Assignee:
Dana Corporation - Toledo OH
International Classification:
F02N 300
US Classification:
1231886, 277502
Abstract:
A valve stem seal assembly includes a retainer with one or more built-in sprues, a cavity at one end, an annular flange on the opposite end, and a cylindrical interior passageway therebetween. The built-in sprues extend from the bottom surface of the cavity to the annular flange. When the valve stem seal assembly is fitted atop the valve guide, a gap is formed between the bottom surface of the cavity of the retainer and the top surface of the valve guide to accommodate manufacturing tolerances in the height of the valve guide. A jacket is integrally bonded to the retainer by introducing material into the cavity, through the built-in sprues, and out of the bottom of the annular flange. A method of manufacturing the valve stem seal assembly with one or more built-in sprues is disclosed.
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Mark A Leimer from Fort Wayne, IN, age ~62 Get Report