The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 27, 1994
Filed:
Jan. 10, 1994
Joseph M Jacobs, Redondo Beach, CA (US);
Hughes Aircraft Company, Los Angeles, CA (US);
Abstract
A removal tool for removing a component bonded to a printed wiring board. A housing and securing mechanism are provided for securing the printed wiring board to the housing. An adapter holds the component that is to be removed. A variable jaw assembly applies a closing force to the adapter to hold the component. A spanner assembly comprises a variable position slider block for holding the jaw assembly in a vertical orientation, and locking devices for securing it to the housing. A second securing mechanism is provided for locking the slider block to secure the variable jaw assembly. A torque handle assembly is coupled to the jaw assembly that is rotatable to apply torque to the component to break the bond between the component and the printed wiring board. The securing mechanism comprises a support block, an end stop, a swivel block disposed opposite the end stop, and a locking device for supporting and holding the printed wiring board in the housing. The slider block is captivated by a slot in the spanner assembly that is used to lock the jaw assembly in a vertical direction. The slot provides a limit to rotation when force is applied to the handles during removal of the component. The torque handle assembly comprises two L-shaped blocks for grasping a shaft of the variable jaw assembly and anchoring two dowel pins. The variable jaw assembly comprises a housing, two pivotable jaws secured to the housing that are each rotatable around a pivot shaft, a partially threaded shaft having a left-hand threaded portion and a right-hand threaded portion disposed through the respective jaws, and a disk attached to a center portion of the partially threaded shaft having that permits turning thereof in response to rotation of the disk. The removal tool permits safe removal of components from printed wiring boards without damage to the surface thereof or to the component. The removal tool provides the capability of grasping and removing components of various sizes and shapes that are confined in the midst of other adjacent components on the surface of the printed wiring board.