Steven H Chang

US Patent:

49170724, Apr 17, 1990

Filed:

Jan 12, 1989

Appl. No.:

7/296100

Inventors:

Steven Chang - Bardonia NY

Assignee:

C & M Sports Enterprises, Inc. - W. Nyack NY

International Classification:

F41B 500

US Classification:

124 41A

Abstract:

A combination arrow sight and support device for use with an arrow having feathers and an archery bow comprises a generally conical frame having a ring portion and a conical portion. The conical portion defines a central arrow support aperture and includes arrow feather slots to permit passage of the feathers therethrough. An entrance slot permits entrance of the arrow into said central aperture. The arrow slots may be either straight or curved to provide an axial rotation to the arrow as it passes through the unit.

US Patent:

56221274, Apr 22, 1997

Filed:

Jun 27, 1995

Appl. No.:

8/495790

Inventors:

Steven Chang - Bardonia NY

International Classification:

D05B 5900

US Classification:

112279

Abstract:

An automatic dual bobbin mechanism is provided. A housing containing two unique bobbin casings and bobbins therein oriented side-by-side with the sewing needle and thread passing between the bobbin casing pair replaces the convention single bobbin configuration. The bobbin pair acts in a tag-team operation whereby one bobbin supplies thread to be stitched into a fabric while the second bobbin is simultaneously filled with thread from an external source. When the first bobbin is emptied, the bobbin pair is rotated 180. degree. inside the housing. The second bobbin, now full, supplies thread for continued stitching while the first bobbin is refilled with thread supplied by the external source. The specially designed bobbins and bobbin casings allow for automatic rethreading of the empty bobbin and cutting of the bobbin thread from external source, thus eliminating the need to manually remove the empty bobbin and assembly, replace with a full bobbin and rethread.

US Patent:

48585890, Aug 22, 1989

Filed:

Jul 11, 1988

Appl. No.:

7/217191

Inventors:

Steven Chang - Bardonia NY

Assignee:

C & M Sports Enterprises Inc. - West Nyack NY

International Classification:

F41B 500

US Classification:

124 24R

Abstract:

A combination arrow sight and support device is adapted to be mounted to an archery bow. A horizontal bar projects outwardly from the bow across the plane defined by drawstring action and in front of the drawn position of the drawstring. An arrow support is mounted to the bar and depends therefrom in the plane of drawstring action. A peep-sight, mounted for adjustable travel along the bar, projects upwardly therefrom. A mounting plate, secured to the bow in the area of the bow's hand-grip portion thereof pivotally supports a bar-support arm about a horizontal axis. The bar support arm is also pivotally mounted to the horizontal bar to allow adjustment of the device in the vertical sense with respect to the bow.