Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator
Patent
1990-09-20
1992-02-25
Watson, Robert C.
Metal working
Means to assemble or disassemble
Puller or pusher means, contained force multiplying operator
B23P 1904
Patent
active
050901028
ABSTRACT:
A tool for removing a Diesel Injector Sleeve from a Diesel engine head is built of a split, threaded expander section within which is mounted at plunger having an angled end. The plunger extends to form a handle upon which slides a weighted hammer section.
The tool is inserted into the neck of an injector tube. A downward blow with the hammer drives the expander over the plunger, expanding the threads into the sidewall of the tube and creating a positive connection with the injector tube. An upward blow then pulls the plunger into the expander, maintaining a positive connection and imparting an upward force that draws the entire tube out of the head.
The expander preferably has a screw thread so that the injector tube may be removed from the tool by twisting it off the expander.
The tool will engage and pull an injector tube with only a partial thread engagement. A simple insertion and blow sets the expander into the injector tube; a reverse blow pulls the injector tube without requiring removal of the engine head.
REFERENCES:
patent: 1177843 (1916-04-01), Ackerman et al.
patent: 1381101 (1921-06-01), Albertson
patent: 2380068 (1945-07-01), Patton
patent: 3529497 (1970-09-01), Brooks
patent: 3535765 (1970-10-01), Denehie
patent: 4476598 (1984-10-01), Beauregard
Norcross Alexander
Watson Robert C.
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