Patents by Inventor David O Zalanka
David O Zalanka 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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Publication number: 20240083506Abstract: A front rail weldment may include a base frame comprising a pair of substantially uninterrupted outlooking members extending from a first end to a second end and a cross member extending therebetween. The weldment may also include a pair of hangar bars each secured to respective outlooking members of the base frame at or near a midpoint of the respective outlooking members and extending upward to a top end. The weldment may also include a pair of struts extending from a respective first end of the pair of outlooking members to the top of a respective hangar bar of the pair of hangar bars. The weldment may also include a pair of tieback bars each configured for tying back the top end of a respective hangar bar of the pair of hangar bars.Type: ApplicationFiled: September 14, 2022Publication date: March 14, 2024Applicant: Caterpillar Inc.Inventors: David O. Zalanka, Timothy D. Harman
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Publication number: 20240083505Abstract: A suspension connection weldment may include a cross member having a first end and a second end and a pair of substantially parallel flank walls spaced apart from one another and arranged at respective first and second ends of the cross member. The flank walls may extend upward and forward from the respective first and second ends of the cross member and generally orthogonal to the cross member. The flank walls may include a plurality of vertically extending rib elements spaced horizontally along respective flank walls from a rear side of the flank wall to a front side of the flank wall. Each rib element may include an upper bore in an upper end and a lower bore in a lower end. The upper and lower bores may be configured to receive a suspension connecting pin.Type: ApplicationFiled: September 14, 2022Publication date: March 14, 2024Applicant: Caterpillar Inc.Inventors: David O. Zalanka, Timothy D. Harman
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Patent number: 11292530Abstract: A center lower frame connection for a space frame comprising an outer lift cylinder connection boss, an inner drop tube connection boss, a center cylinder between the outer lift cylinder connection boss and the inner drop tube connection boss, a suspension connection boss, an outer rearward angular center lower frame tube connection boss, an inner rearward angular center lower frame tube connection boss, a vertical center lower frame tube connection boss, a forward angular center lower frame tube connection boss, an outer forward horizontal center lower frame tube connection boss, and an inner forward horizontal center lower frame tube connection boss. The outer lift cylinder connection boss, the inner drop tube connection boss, and the center cylinder can have a common center axis. The center lower frame connection can also have a rearward angular beam and a forward horizontal beam.Type: GrantFiled: October 25, 2019Date of Patent: April 5, 2022Assignee: Caterpillar Inc.Inventors: Tad W. Miller, David O Zalanka, Timothy D Harman
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Patent number: 11235806Abstract: A front lower frame connection can comprise a center boss, outer and inner rearward horizontal front lower frame tube connection bosses, a rearward angular front lower frame tube connection boss, a vertical front lower frame tube connection boss, a forward angular front lower frame tube connection boss, outer and inner forward horizontal front lower frame tube connection bosses, a rearward horizontal beam, and a forward horizontal beam. The rearward horizontal beam can have an outer rearward horizontal beam member, and an inner rearward horizontal beam member. The forward horizontal beam can have an outer forward horizontal beam member, and an inner forward horizontal beam member.Type: GrantFiled: October 25, 2019Date of Patent: February 1, 2022Assignee: Caterpillar Inc.Inventors: Tad W. Miller, David O Zalanka, Timothy D Harman
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Patent number: 11235808Abstract: A center upper frame connection for a space frame can comprise a pair of outer support beams spaced from each in a width direction, a rearward center support between the outer support beams, and support beam arch. Each outer support beam can have a rearward frame connection boss and a forward center frame nodal connection boss. The rearward center support can have a pair of rearward frame connection bosses oriented at an angle relative to each other, and a pair of side frame connection bosses provided on opposing sides of the rearward center support. The support beam arch can be provided adjacent to the outer support beams and the rearward center support. The rearward center support can be located on a longitudinal centerline of the support beam arch and can be parallel to the outer support beams.Type: GrantFiled: October 25, 2019Date of Patent: February 1, 2022Assignee: Caterpillar Inc.Inventors: Tad W. Miller, David O Zalanka, Timothy D Harman, Thomas Alworth
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Publication number: 20210122428Abstract: A center lower frame connection for a space frame comprising an outer lift cylinder connection boss, an inner drop tube connection boss, a center cylinder between the outer lift cylinder connection boss and the inner drop tube connection boss, a suspension connection boss, an outer rearward angular center lower frame tube connection boss, an inner rearward angular center lower frame tube connection boss, a vertical center lower frame tube connection boss, a forward angular center lower frame tube connection boss, an outer forward horizontal center lower frame tube connection boss, and an inner forward horizontal center lower frame tube connection boss. The outer lift cylinder connection boss, the inner drop tube connection boss, and the center cylinder can have a common center axis. The center lower frame connection can also have a rearward angular beam and a forward horizontal beam.Type: ApplicationFiled: October 25, 2019Publication date: April 29, 2021Applicant: Caterpillar Inc.Inventors: Tad W. Miller, David O. Zalanka, Timothy D Harman
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Publication number: 20210122420Abstract: A front lower frame connection can comprise a center boss, outer and inner rearward horizontal front lower frame tube connection bosses, a rearward angular front lower frame tube connection boss, a vertical front lower frame tube connection boss, a forward angular front lower frame tube connection boss, outer and inner forward horizontal front lower frame tube connection bosses, a rearward horizontal beam, and a forward horizontal beam. The rearward horizontal beam can have an outer rearward horizontal beam member, and an inner rearward horizontal beam member. The forward horizontal beam can have an outer forward horizontal beam member, and an inner forward horizontal beam member.Type: ApplicationFiled: October 25, 2019Publication date: April 29, 2021Applicant: Caterpillar Inc.Inventors: Tad W Miller, David O Zalanka, Timothy D Harman
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Publication number: 20210122425Abstract: A center upper frame connection for a space frame can comprise a pair of outer support beams spaced from each in a width direction, a rearward center support between the outer support beams, and support beam arch. Each outer support beam can have a rearward frame connection boss and a forward center frame nodal connection boss. The rearward center support can have a pair of rearward frame connection bosses oriented at an angle relative to each other, and a pair of side frame connection bosses provided on opposing sides of the rearward center support. The support beam arch can be provided adjacent to the outer support beams and the rearward center support. The rearward center support can be located on a longitudinal centerline of the support beam arch and can be parallel to the outer support beams.Type: ApplicationFiled: October 25, 2019Publication date: April 29, 2021Applicant: Caterpillar Inc.Inventors: Tad W Miller, David O Zalanka, Timothy D Harman, Thomas Alworth