Charles E Smart

US Patent:

51996243, Apr 6, 1993

Filed:

Dec 20, 1990

Appl. No.:

7/630904

Inventors:

Charles F. Smart - Danbury CT
William E. O'Connor - Watertown CT
Anthony D'Aquila - Trumbull CT

Assignee:

Emhart Inc. - Newark DE

International Classification:

B21J 1528

US Classification:

227 2

Abstract:

A rivet pulling head is supported for vertical displacement from an up position to a down riveting position. A rivet delivery device is carried by a movable support and has a delivery arm which can be lowered relative to the pulling head and pivoted underneath it to deliver the next rivet to the pulling head. The delivery device is operated when the head is at the up position and while the head is maintained at that location.

US Patent:

50148940, May 14, 1991

Filed:

Dec 1, 1989

Appl. No.:

7/444927

Inventors:

Charles F. Smart - Danbury CT

Assignee:

Emhart Industries, Inc. - Towson MD

International Classification:

B21J 1510

US Classification:

227 6

Abstract:

An automatic riveting machine determines that an operator has manually removed a rivet from the nose of the gun by sensing its insertion into the nose and its subsequent absence prior to gun operation.

US Patent:

51251515, Jun 30, 1992

Filed:

Aug 8, 1990

Appl. No.:

7/564198

Inventors:

Charles F. Smart - Danbury CT

Assignee:

Emhart Inc. - Newark DE

International Classification:

B23P 2100
B23Q 1500

US Classification:

29706

Abstract:

The system accordingly strictly accounts for all rivets and prevents a rivet from being removed for any reason and not accounted for. This assures that no free rivet will find itself within the workpiece being riveted.

US Patent:

50353535, Jul 30, 1991

Filed:

Oct 16, 1990

Appl. No.:

7/598921

Inventors:

Charles F. Smart - Danbury CT
Anthony D'Aquila - Trumbull CT

Assignee:

Emhart Inc. - Newark DE

International Classification:

B21J 1510
B21J 1528

US Classification:

227 2

Abstract:

A vacuum pulls a spent mandrel through a gun bore and into a collection tube which discharges into a collector. Gun operation and mandrel entry into and departure from the collection tube are sensed and blockage of the mandrel within the collection tube and the jamming of the mandrel in the rivet gun are determined and signalled to the operator. The cycle immediately continues when the mandrel is cleared.

US Patent:

49880284, Jan 29, 1991

Filed:

Dec 1, 1989

Appl. No.:

7/445076

Inventors:

Charles F. Smart - Danbury CT
Raymond H. Varian - Danbury CT
Anthony D'Aquila - Trumbull CT

Assignee:

Emhart, Inc. - Towson MD

International Classification:

B21J 1510

US Classification:

227 3

Abstract:

An automatic riveting machine is disclosed which counts the rivets, as set, to control the feeding of rivets from a feeder to the rivet track or chute. The track will be resupplied after a selected number of rivets are set or sooner should the track become prematurely empty by removal of rivets from the track.

US Patent:

56667108, Sep 16, 1997

Filed:

Apr 20, 1995

Appl. No.:

8/425079

Inventors:

Richard G. Weber - Ridgefield CT
Jeffrey T. Blake - Milford CT
William E. O'Connor - Waterton CT
Charles F. Smart - Brookfield CT

Assignee:

Emhart Inc. - Newark DE

International Classification:

B21J 1528

US Classification:

29243523

Abstract:

A system for first setting a blind rivet and then verifying the correctness of the set comprising a rivet setting tool to set the rivet and computer logic to verify the correctness of the set. The setting tool includes a jaw assembly for holding the stem of the rivet's mandrel fitted to an axially movable pulling shaft. Both the pulling force of the setting tool and the displacement of the pulling shaft are measured and the measurements are interpreted by an integrator to determine the total energy of the setting process. The determined total energy is then compared with an ideal total energy to assess whether or not the set of the particular rivet is acceptable. Other quantitative comparisons may be made against other ideal values.

US Patent:

51563134, Oct 20, 1992

Filed:

Dec 20, 1990

Appl. No.:

7/630614

Inventors:

Charles F. Smart - Danbury CT
Anthony D'Aquila - Trumbull CT

Assignee:

Emhart Industries, Inc. - Towson MD

International Classification:

B23P 1100

US Classification:

227 8

Abstract:

A rivet tool is supported for repeated displacement to a rivet setting location. When the tool is at this location, it is forcefully pushed against the workpiece during rivet setting to assure that the rivet will be properly set.

US Patent:

50980017, Mar 24, 1992

Filed:

Oct 7, 1991

Appl. No.:

7/782864

Inventors:

Charles F. Smart - Danbury CT
Anthony D'Aquila - Trumbull CT

Assignee:

Emhart Inc. - Newark DE

International Classification:

B21J 1528

US Classification:

227 2

Abstract:

A rivet tool is supported for repeated displacement to a rivet setting location. When the tool is at this location, it is forcefully pushed against the workpiece during rivet setting to assure that the rivet will be properly set.