Edward J Davert

US Patent:

42722152, Jun 9, 1981

Filed:

Apr 2, 1979

Appl. No.:

6/026122

Inventors:

Edward J. Davert - Seattle WA
Wilbur L. Gants - Renton WA

Assignee:

The Boeing Company - Seattle WA

International Classification:

B23B 4700

US Classification:

408 14

Abstract:

A surface of a wedge acts as a stop to limit travel of a spindle on an automatic riveting machine. A drive mechanism moves the wedge back and forth to vary the heighth of the wedge, and the same mechanism simultaneously moves a rod back and forth to act on a transducer, and transmit an electrical signal to give a digital readout of the change in heighth of the wedge.

US Patent:

48798754, Nov 14, 1989

Filed:

Mar 22, 1988

Appl. No.:

7/171752

Inventors:

Edward J. Davert - Seattle WA
Peter D. McCowin - Enumclaw WA

Assignee:

The Boeing Company - Seattle WA

International Classification:

F15B 708

US Classification:

60588

Abstract:

A fastener driving tool for driving remotely located fasteners through preformed openings in a structure. The tool (10) comprises a housing (12) having a pneumatic-hydraulic intensifier (14) mounted thereon and a remotely located second hydraulic cylinder assembly (20) attached to the housing (12) by means of an extension tube (110). Pressurized air is provided to the tool (10) through a cartridge regulator (36) that is controlled by a trigger assembly (41). A pneumatic piston (72), connected to a first hydraulic piston (76) by a piston rod (80), moves from a first position located away from a nose portion (66) to a second position located toward a nose portion (66). The pressurizing valve (56) admits air to the pneumatic piston (72) to cause the first hydraulic piston (76) to move to the second position, thereby pressurizing hydraulic fluid (92) and causing the second hydraulic piston (102) to extend from the second cylinder housing (104). A rotating union (22) connects the extension tube (110) to the housing (12) and permits rotation of the second hydraulic cylinder assembly (20) about the longitudinal axis of the pneumatic-hydraulic intensifier (14). A fluid reservoir (68) supplies fluid to the first hydraulic cylinder assembly (18) and captures entrapped air bubbles within the fluid (92).

US Patent:

42728908, Jun 16, 1981

Filed:

Nov 30, 1979

Appl. No.:

6/099158

Inventors:

Edward J. Davert - Seattle WA

Assignee:

The Boeing Company - Seattle WA

International Classification:

G01B 300
E06B 300

US Classification:

33174G

Abstract:

A lattice template for locating aircraft structure and pilot holes behind flat or contoured surface panel structures. The lattice structure of template strips positioned by bridge structures or flexible cables enables adjustment of template strips within the lattice template thereby enabling coordination with its respective structural element to accommodate tolerances of assembly.