Robert B Macdonald

US Patent:

45612030, Dec 31, 1985

Filed:

Aug 4, 1983

Appl. No.:

6/520334

Inventors:

Robert D. MacDonald - Carmel NY
William A. Luca - Cheshire CT
Robert M. Johnstone - Shelton CT

Assignee:

Dual-Lite Manufacturing - Naguabo PR

International Classification:

G09F 1304

US Classification:

40570

Abstract:

An illuminated sign with an opaque sign plaque employs a light source overlying the sign plaque embraced by a concave downward facing reflector, and a flat lower reflector underlying the sign plaque, providing both direct and reflected illumination over the face of the sign plaque. In its preferred form, the concave reflector is compoundly curved over the ends of the sign plaque and the flat lower reflector is tilted toward the sign plaque.

US Patent:

53051947, Apr 19, 1994

Filed:

Apr 10, 1991

Appl. No.:

7/683348

Inventors:

Robert MacDonald - West Caldwell NJ

Assignee:

Inventio AG - Hergiswil

International Classification:

G06F 1520

US Classification:

364400

Abstract:

A method of minimizing car bunching at any traffic flow level allocates closely adjacent stops to a given car which is favored by a variable, readjustable distributor bonus. The estimated lost time costs of all passengers are computed for each elevator and for each hall call, these costs are reduced by a variable distributor bonus concentrating adjacent stops in one car, and a hall call is then allocated for service to that elevator which displays the lowest, reduced estimated lost time costs. In order to assure the function of this method equally at high and low traffic levels, the variable distributor bonus (Bvn) is readjusted to the traffic flow level (Va) which serves as a tracking parameter by means of a tracking function according to the relationship Bvn=Bv. F(Va) and the readjusted variable distributor bonus is defined thereby. The tracking function F(Va) is determined by one of artificial intelligence methods and expert programs.

US Patent:

44310854, Feb 14, 1984

Filed:

Nov 24, 1981

Appl. No.:

6/324363

Inventors:

Robert C. MacDonald - West Caldwell NJ

Assignee:

Westinghouse Electric Corp. - Pittsburgh PA

International Classification:

B66B 118

US Classification:

187 29R

Abstract:

A new and improved method of serving calls for elevator service in a building. The method independently serve at least two groups of floors using at least two banks of elevator cars, from a single system processor. The full strategy of the system processor is applied to each group as a whole, and not as segments of a strategy, to improve elevator service to each group, while effecting the economies which result from the utilization of a single system processor, a single hall call processor, and a single data transmission system.

US Patent:

59674180, Oct 19, 1999

Filed:

Jun 13, 1997

Appl. No.:

8/885649

Inventors:

Robert W. MacDonald - Ridgefield CT
Victor Szatkowski - Orange CT

International Classification:

A62C 3102

US Classification:

239391

Abstract:

A spray bar for use with a first web having a first width and a second web having a second width comprises a spray bar mounting channel having at least one cut-out in a front surface thereof. A plurality of reduction plates are affixed to the mounting channel over the cut-out. In one embodiment, each reduction plate has a center line and an opening therethrough located a predetermined offset from the center line.

US Patent:

59749652, Nov 2, 1999

Filed:

Feb 3, 1997

Appl. No.:

8/792783

Inventors:

John Ciofalo - New Milford CT
Robert W. MacDonald - Ridgefield CT

Assignee:

Baldwin Graphic Syetems, Inc. - Shelton CT

International Classification:

B41F 730

US Classification:

101147

Abstract:

A single point quick disconnect spray bar is disclosed for movement between a connected position, in which the spray bar is operatively connected to a press frame, and a disconnected position. A mounting guide secured to the spray bar is engagable with the press frame and movably supports the spray bar in the disconnected position when so engaged. A closure member, having a first part affixed to a first end of the spray bar and a second end affixed to the press frame moves the spray bar into the connected position when the first and second parts are engaged. A method of connecting a spray bar is also disclosed.

US Patent:

44820321, Nov 13, 1984

Filed:

Apr 25, 1983

Appl. No.:

6/488340

Inventors:

Emanuel E. Enriquez - West Caldwell NJ
Robert C. MacDonald - West Caldwell NJ

Assignee:

Westinghouse Electric Corp. - Pittsburgh PA

International Classification:

B66B 500

US Classification:

187 29R

Abstract:

An emergency control system for use in an elevator system. When an emergency situation arises in an elevator car, an elevator passenger recites a code word. A microphone in the elevator car transforms the vocal signal to an electrical signal, and using a voice-recognition system, the spoken code word is compared with a code word stored in memory. If the spoken code word matches the stored code word, control of the elevator system is switched to an emergency mode. In this mode the elevator car is brought to a predetermined landing and an intercom system providing communication between the elevator car and the guard station is activated. At the predetermined landing, security personnel are available to render assistance to the elevator passenger when the elevator doors open.

US Patent:

58833439, Mar 16, 1999

Filed:

Dec 4, 1996

Appl. No.:

8/758827

Inventors:

Robert C. MacDonald - West Caldwell NJ
Christian Semoroz - Lucerne, CH

Assignee:

Inventio AG - Hergiswil NW

International Classification:

B66B 120

US Classification:

187383

Abstract:

A system and method for optimally allocating elevator cars of an elevator group to serve downpeak traffic. The system monitors a "snap shot" of pending down hall calls and forms groups based upon an initialized floor separation value or response range. If the number of groups formed is greater than the number of available elevator cars in the elevator group, the system increments the floor separation value by "+1" and regroups the "snap-shot" of pending down hall calls. This procedure may be repeated until the number of formed groups is equal to or less than the number of allocable elevator cars. The system may then allocate each formed group to a respective available elevator car to serve the downpeak traffic.

US Patent:

41291999, Dec 12, 1978

Filed:

Apr 29, 1977

Appl. No.:

5/792289

Inventors:

Robert C. MacDonald - West Caldwell NJ

Assignee:

Westinghouse Electric Corp. - Pittsburgh PA

International Classification:

B66B 120

US Classification:

187 29R

Abstract:

An elevator system, and method of operating same, which includes a plurality of elevator cars mounted in a building to serve the floors therein. The building includes a special floor, located between the top and bottom floors, from which all calls for elevator service in the up and down directions may be registered. Supervisory control apparatus, which assigns a hall call to a selected elevator car, gives priority to a predetermined service direction from the special floor when hall calls for both the up and down directions coexist therefrom, with the priority direction being responsive to the position of the special floor in the building.

Author:

Robert MacDonald

ISBN #:

0340495839

Author:

Robert MacDonald

ISBN #:

0747503567

Author:

Robert MacDonald

ISBN #:

0789467720

Author:

Robert MacDonald

ISBN #:

0919606016

Author:

Robert MacDonald

ISBN #:

0919606024

Author:

Robert MacDonald

ISBN #:

0894331817

Author:

Robert L. MacDonald

ISBN #:

0803650310

Author:

Robert David MacDonald

ISBN #:

0879102616