Patents by Inventor John M. Buhager

John M. Buhager 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).

  • Patent number: 11554466
    Abstract: An end effector for installing pre-molded seal caps onto fasteners comprises a cap-dispenser assembly and a cap-placement assembly. The cap-placement assembly comprises a main housing and a plunger mechanism, comprising an outer plunger housing and an inner gripper. The inner gripper is rotatable relative to the outer plunger housing between a cap-retaining configuration and a cap-releasing configuration. The plunger mechanism is selectively translatable from an extended position to a retracted position and from the retracted position to the extended position. The main housing is selectively rotatable from a cap-receiving position, in which the plunger mechanism is aligned with the seal-cap-delivery-sleeve central axis, to a cap-installing position, in which the main housing is angularly displaced from the cap-receiving position, and from the cap-installing position to the cap-receiving position.
    Type: Grant
    Filed: May 7, 2020
    Date of Patent: January 17, 2023
    Assignee: The Boeing Company
    Inventors: John M. Buhager, Stephen J. Chant
  • Patent number: 11187257
    Abstract: A method of installing pre-molded seal caps onto fasteners that extend from a surface comprises sequentially delivering the pre-molded seal caps, arranged on a carrier strip, to a plunger mechanism via a feed system. The method also comprises sequentially removing the pre-molded seal caps from the carrier strip using the plunger mechanism, operating in concert with the feed system. The method further comprises individually installing the pre-molded seal caps onto selected ones of the fasteners using the plunger mechanism.
    Type: Grant
    Filed: October 14, 2020
    Date of Patent: November 30, 2021
    Assignee: THE BOEING COMPANY
    Inventors: John M. Buhager, Stephen J. Chant
  • Publication number: 20210347014
    Abstract: An end effector for installing pre-molded seal caps onto fasteners comprises a cap-dispenser assembly and a cap-placement assembly. The cap-placement assembly comprises a main housing and a plunger mechanism, comprising an outer plunger housing and an inner gripper. The inner gripper is rotatable relative to the outer plunger housing between a cap-retaining configuration and a cap-releasing configuration. The plunger mechanism is selectively translatable from an extended position to a retracted position and from the retracted position to the extended position. The main housing is selectively rotatable from a cap-receiving position, in which the plunger mechanism is aligned with the seal-cap-delivery-sleeve central axis, to a cap-installing position, in which the main housing is angularly displaced from the cap-receiving position, and from the cap-installing position to the cap-receiving position.
    Type: Application
    Filed: May 7, 2020
    Publication date: November 11, 2021
    Applicant: The Boeing Company
    Inventors: John M. Buhager, Stephen J. Chant
  • Publication number: 20210025420
    Abstract: A method of installing pre-molded seal caps onto fasteners that extend from a surface comprises sequentially delivering the pre-molded seal caps, arranged on a carrier strip, to a plunger mechanism via a feed system. The method also comprises sequentially removing the pre-molded seal caps from the carrier strip using the plunger mechanism, operating in concert with the feed system. The method further comprises individually installing the pre-molded seal caps onto selected ones of the fasteners using the plunger mechanism.
    Type: Application
    Filed: October 14, 2020
    Publication date: January 28, 2021
    Inventors: John M. Buhager, Stephen J. Chant
  • Patent number: 10865820
    Abstract: An apparatus for installing pre-molded seal caps onto fasteners that extend from a surface is disclosed. Apparatus comprises a plunger mechanism, configured to individually install the pre-molded seal caps onto selected ones of the fasteners. Apparatus also comprises a feed system, configured to sequentially deliver the pre-molded seal caps, arranged on a carrier strip, to the plunger mechanism. Apparatus additionally comprises a take-up mechanism, configured to collect the carrier strip as the pre-molded seal caps are sequentially removed from the carrier strip. The plunger mechanism is also configured to operate in concert with the feed system to sequentially remove the pre-molded seal caps from the carrier strip.
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: December 15, 2020
    Assignee: THE BOEING COMPANY
    Inventors: John M. Buhager, Stephen J. Chant
  • Publication number: 20200018336
    Abstract: An apparatus (100) for installing pre-molded seal caps (210) onto fasteners (301) that extend from a surface (300) is disclosed. Apparatus (100) comprises a plunger mechanism (220), configured to individually install the pre-molded seal caps (210) onto selected ones of the fasteners (301). Apparatus (100) also comprises a feed system (230), configured to sequentially deliver the pre-molded seal caps (210), arranged on a carrier strip (200), to the plunger mechanism (220). Apparatus (100) additionally comprises a take-up mechanism (240), configured to collect the carrier strip (200) as the pre-molded seal caps (210) are sequentially removed from the carrier strip (200). The plunger mechanism (220) is also configured to operate in concert with the feed system (230) to sequentially remove the pre-molded seal caps (210) from the carrier strip (200).
    Type: Application
    Filed: July 10, 2018
    Publication date: January 16, 2020
    Inventors: John M. Buhager, Stephen J. Chant