Abstract: An auto-cycling plunger including a hollow, longitudinally extending body, at least one first directional outer seal, at least one second directional outer seal and a valve stem. Both the at least one first directional outer seal and the at least one second directional outer seal are disposed on an exterior surface of the body for creating a seal between the body and a well bore. Portions of the seals extend in a direction substantially parallel to the length of the longitudinally extending body such that these portions are spread resiliently outwardly from the body with an applied pressure, thereby increasing the degree of sealing. The first directional outer seal extending in a direction substantially opposite to the direction of the at least one second directional outer seal. The valve stem includes a valve member, extends through the longitudinally extending body, and has actual ends extending from the body. The valve stem is operable to be shuttled between an open and a closed position.
Type:
Application
Filed:
September 12, 2003
Publication date:
February 26, 2004
Applicant:
Synco Tool Company Incorporated
Inventors:
Douglas H. Abbott, Daniel S. Belczewski
Abstract: An auto-cycling plunger including a hollow, longitudinally extending body and at least one first directional outer seal disposed on an exterior surface of the body for creating a seal between the body and a well bore. A portion of the seal is spread resiliently outwardly from the body with an applied pressure, thereby increasing the degree of sealing. The plunger also includes a valve stem including a valve member. The valve stem extends through the body and has actuable ends extending from the body. The valve stem includes an actuating head external to and proximal a first end of the body, the head being larger than the internal diameter of the first end of the body. The valve stem can be shuttled between an open position and a closed position. In the open position, the valve member is longitudinally spaced from a valve seat on the body to allow fluid flow through the body. In the closed position, the valve member is seated on the valve seat, thereby sealing the body and preventing fluid flow therethrough.
Type:
Grant
Filed:
January 25, 2002
Date of Patent:
November 11, 2003
Assignee:
Synco Tool Company Incorporated
Inventors:
Douglas H. Abbott, Daniel S. Belczewski
Abstract: An auto-cycling plunger for use in lifting a fluid out of a well bore. The auto-cycling plunger includes a hollow, longitudinally extending body and at least one first directional outer seal disposed on an exterior surface of the body for creating a seal between the body and a well bore. At least a portion of the at least one first directional outer seal extends in a direction substantially parallel to a length of the longitudinally extending body. The portion of the first directional outer seal is spread resiliently outwardly from the body with an applied pressure, thereby increasing the degree of sealing. The auto-cycling plunger also includes a valve stem including a valve member, the valve stem extending through the longitudinally extending body and having actuable ends extending from the body. The valve stem is operable to be shuttled between an open position and a closed position.
Type:
Application
Filed:
January 25, 2002
Publication date:
July 31, 2003
Applicant:
SYNCO TOOL COMPANY INCORPORATED
Inventors:
Douglas H. Abbott, Daniel S. Belczewski