James J Lin

US Patent:

48219207, Apr 18, 1989

Filed:

Aug 28, 1987

Appl. No.:

7/090685

Inventors:

James G. Lin - Springfield VA
Werner H. Schmitt - Falls Church VA

Assignee:

Hoppmann Corporation - Chantilly VA

International Classification:

B65H 900

US Classification:

221167

Abstract:

An article feeding appartus for supplying articles includes a base member with a side wall member having a first surface and a second surface. The first surface is secured to the base member. A rim member is secured to the second surface of the side wall member. An elevating turret is centrally disposed relative to the base member. A plurality of inclined ramp segments are operatively connected to the elevating turret and radially extend from the centrally disposed elevating turret towards the side wall member for forming a reservoir area into which articles may be supplied. A drive member is provided for rotating the base member, side wall member, rim and elevating turret at a predetermined speed. An elevating member is operatively positioned within said elevating turret and operatively connected to the plurality of ramp segments for sequentially elevating predetermined ramp segments to permit articles deposited within the reservoir section to be transported upwardly and fall by means of gravity outwardly onto the rim.

US Patent:

44550677, Jun 19, 1984

Filed:

Jul 29, 1980

Appl. No.:

6/173252

Inventors:

Kurt H. Hoppmann - Falls Church VA
James G. Lin - Springfield VA
Peter G. Hoppmann - Springfield VA

Assignee:

Hoppmann Corporation - Chantilly VA

International Classification:

B03B 2100

US Classification:

353 69

Abstract:

Photography, particularly, a method of modifying slide transparencies so as to eliminate distortion and to provide uniform illumination in oblique projection, for example, upon rear view screens. The method of modifying slide transparencies includes supporting the object to be photographed at an angle with respect to the optical path of the camera; selectively illuminating the object to be photographed such that the portion farthest from the camera receives the greatest portion of the light with the rest of the object being gradually and continuously less illuminated so the portion nearest the camera receives the least light; and, taking a picture of the object, such that the transparency defines the object being photographed in trapezoidal form with the wider base being the least illuminated and the narrow apex being the greatest illuminated.

US Patent:

47236612, Feb 9, 1988

Filed:

Jul 1, 1986

Appl. No.:

6/880747

Inventors:

Kurt H. Hoppmann - Falls Church VA
James G. Lin - Springfield VA
Werner H. Schmitt - Falls Church VA

Assignee:

Hoppmann Corporation - Chantilly VA

International Classification:

B07C 900
B65G 2900
B65G 4734

US Classification:

209658

Abstract:

A rotary puck conveying, accumulating and qualifying mechanism for accommodating articles of various sizes. A puck is provided having a predetermined outer peripheral surface and including an article retaining aperture disposed therein. The article retaining aperture being of a predetermined shape for accommodating an outer peripheral surface of an article being handled. A centrifugal feeder is provided for supplying a plurality of articles to an outer peripheral rim. A rotating table accumulates the pucks in both a full and an empty condition. The rotating table is operatively disposed beneath the centrifugal feeder wherein outer peripheral surfaces of the centrifugal feeder and the rotating table overlap. A plurality of pockets are rotatably disposed below the centrifugal feeder for engaging pucks positioned on the rotating table for retaining the pucks in a predetermined location relative to the centrifugal feeder for supplying articles into the aperture in the puck over an extended length of transfer. A qualifying doctor blade is operatively positioned relative to the rotating table for separating the pucks which contain an article from empty pucks.

US Patent:

48281000, May 9, 1989

Filed:

Mar 5, 1986

Appl. No.:

6/836333

Inventors:

Kurt H. Hoppmann - Falls Church VA
James G. Lin - Springfield VA
Werner H. Schmitt - Falls Church VA

Assignee:

Hoppmann Corporation - Chantilly VA

International Classification:

B65G 4724

US Classification:

198392

Abstract:

A rotating ring orienting feeder including a hopper for containing a supply of articles. A ring is positioned above the hopper. A support member is provided for retaining the ring in a substantially horizontal position. The supports also provide rotation for the ring. A conveyor is provided within the hopper for supplying articles to the ring. A drive mechanism is provided for imparting rotation to the ring and to the conveyor. A plurality of articles are supplied to the ring by the conveyor and are qualified on either side of the ring. Articles not being disposed in a predetermined orientation are returned to the hopper for resupply. In another embodiment, the articles positioned on the ring may also turn from one position into another position in order to qualify the articles directly on the ring.

US Patent:

48485594, Jul 18, 1989

Filed:

Jul 14, 1988

Appl. No.:

7/219893

Inventors:

Kurt H. Hoppman - Falls Church VA
James G. Lin - Springfield VA
Werner H. Schmitt - Falls Church VA

Assignee:

Hoppmann Corporation - Chantilly VA

International Classification:

B65G 2900

US Classification:

198392

Abstract:

A kit for converting a fixed ramp rotating bowl feeder into a flexible disk, stationary ramp rotating bowl feeder including an overhead ramp support for spanning the distance between side walls of the rotating bowl. A retaining tube is affixed to substantially a central portion of the overhead ramp support. A stationary ramp is affixed to one end of the retaining tube and projecting outwardly toward the side walls of the rotating bowl. A flexible disk mounted on the stationary ramp for rotating within the rotating bowl together with the rotating bowl for transporting articles disposed within the bowl upwardly to be discharged therefrom.

US Patent:

52251470, Jul 6, 1993

Filed:

Mar 4, 1992

Appl. No.:

7/845531

Inventors:

Eric K. Lin - Beltsville MD
James Lin - North Potomac MD

Assignee:

General Physics International Engineering & Simulation, Inc. - Columbia MD

International Classification:

G21C 736

US Classification:

376216

Abstract:

An improved method for monitoring the parameters of a nuclear core reactor, analyzing the monitored parameters using modified two neutron group diffusion equations that have been subjected to space-time factorization such that the factorized shape functions are approximated, and determining the core neutronics in constant time steps, for example, about 0. 25 seconds, thereby to provide analysis and simulations in full range of core neutronics in real-time continuously.