Joseph J Demarco

US Patent:

7552041, Jun 23, 2009

Filed:

Oct 3, 2005

Appl. No.:

11/163039

Inventors:

Young M. Lee - Old Westbury NY, US
Edward W. Armstrong - Chapel Hill NC, US
Kenneth M. Cyprys - Chappaqua NY, US
Joseph P. DeMarco - Newburgh NY, US

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06F 17/50

US Classification:

703 13, 705 27

Abstract:

A method, system, and computer program product for determining an optimal database refresh rate is provided. The method includes simulating a shopping system that includes a plurality of databases, the simulating including updating the plurality of databases in accordance with a database refresh rate. The method also includes repeating the simulating for each of a number of database refresh rates and calculating error rates for availability of product determinations resulting from each of the simulations. The method further includes estimating customer satisfaction levels for the error rates and comparing the customer satisfaction levels to corresponding costs of implementing database refreshes corresponding to each of the database refresh rates.

US Patent:

43501753, Sep 21, 1982

Filed:

Sep 24, 1980

Appl. No.:

6/190471

Inventors:

Joseph H. DeMarco - New York NY

International Classification:

A45B 2518
A45B 2524

US Classification:

135 33C

Abstract:

Folding umbrellas which close into a compact condition, for convenience in storage and portability are, of course, well known. To such umbrella, having the characterizing closing mode in which lower rib portions fold bodily against upper rib portions, there are provided, in one embodiment, cooperating closure panels which move towards each other from opposite sides against the bodily folded ribs and are joined to each other, by snaps, zipper, or the like, so as to effectively serve as an integral cover for the umbrella and, in another embodiment, a sock-like tube which is pulled over the folded-closed umbrella thereby serving as a closure for same.

US Patent:

53057708, Apr 26, 1994

Filed:

Apr 7, 1993

Appl. No.:

8/043756

Inventors:

Joseph H. DeMarco - New York NY

International Classification:

A45B 1906

US Classification:

135 26

Abstract:

An umbrella which opens into a noteworthy enlarged expanse due to outer fabric-supporting struts being urged through sliding movement along inner fabric-supporting struts, so that the two fabrics cooperate to provide the enlarged expanse to the umbrella.

US Patent:

46388273, Jan 27, 1987

Filed:

Jun 7, 1985

Appl. No.:

6/742316

Inventors:

Joseph DeMarco - New York NY

International Classification:

A45B 1906
A45B 1100

US Classification:

135 26

Abstract:

A folding umbrella, particularly useful as a beach umbrella, in which circumferentially spaced outer ribs are slidably disposed on cooperating struts as the undersupport of the fabric cover, and in one extreme position of the slides, the umbrella opens to a radius of approximately 42 inches, and in an opposite slide position, the umbrella closes to a radius of approximately 32 inches, the 10 inch difference being the result of slide movement of the end of the rib along a strut which produces an internal fold in a central location of the fabric cover and thus diminishes its size accordingly.

US Patent:

63021242, Oct 16, 2001

Filed:

Feb 23, 2000

Appl. No.:

9/511287

Inventors:

Joseph H. Demarco - New York NY

International Classification:

A45B 1900

US Classification:

135 251

Abstract:

An open spaced apart patio sun umbrella which, when the top thereof is raised, undergoes a reshaping into an inverted v-shape closed condition and makes, to the extent it is raised, the location of an unlatching mechanism within convenient reach of a user making unobserved unlatching contact therewith through the bottom opening of the v-shape, even though the unlatching mechanism is masked from view.

US Patent:

46745246, Jun 23, 1987

Filed:

Nov 22, 1985

Appl. No.:

6/800693

Inventors:

Joseph DeMarco - New York NY

International Classification:

A45B 1906
A45B 2300

US Classification:

135 26

Abstract:

A folding umbrella in which articulatingly connected inner and outer rib members are supported by a single slidably disposed strut providing a large diameter in use, and a substantially reduced size when closed. The paired rib members are covered on their exterior by a fabric and are foldable against the rod so as to be all parallel to the rod.

US Patent:

40077535, Feb 15, 1977

Filed:

Jan 22, 1976

Appl. No.:

5/651475

Inventors:

Joseph H. DeMarco - New York NY

International Classification:

A45B 1910

US Classification:

135 25R

Abstract:

A folding umbrella of the type in which a lower section closes upon an upper section, as both these sections close upon the umbrella rod, and wherein this closing movement is automatically achieved, i. e. is the result of articulating or pivotal movement of the umbrella ribs, rather than being movement that must be manually imparted.