Equipment

Details Equipment Equipment

2011-01-25

2011-01-25

Gupta, Yogendra N (Department: 1791)

Plastic article or earthenware shaping or treating: apparatus

Immersed shaping orifice discharging directly into liquid...

C425S069000, C425S377000

Reexamination Certificate

active

07874824

ABSTRACT:
Problems with incipiently gelling alginate or low-methoxy pectate sols in a bath of an aqueous solution containing calcium ions are reduced by having in the bath a perforated support surface which can be oscillated. The surface is preferably oscillated horizontally and vertically and preferably these oscillations are synchronised. Transport means to remove the product from the bath can be provided at one end of the bath. It is advantageous to ensure that at the beginning of the vertical oscillation the horizontal oscillation is in the direction of such transport means. Portions of the sol can be formed by extrusion either below or above the surface of the bath. The process is particularly useful for sols which have a sugar content greater than 10%. The invention also provides equipment comprising such a perforated support surface. Although the equipment is particularly useful for preparing alginate and low-methoxy pectate products it can also be used advantageously for other products which are formed in a bath and are susceptible to damage before they solidify adequately.

REFERENCES:
patent: 1389517 (1921-08-01), Kitsee
patent: 2403547 (1946-07-01), Peschardt
patent: 3015128 (1962-01-01), Somerville, Jr.
patent: 3682654 (1972-08-01), Johnson
patent: 3922360 (1975-11-01), Sneath
patent: 4117172 (1978-09-01), Bradshaw et al.
patent: 4119739 (1978-10-01), Barwick et al.
patent: 4348418 (1982-09-01), Smith et al.
patent: 5356654 (1994-10-01), White et al.
patent: 5484721 (1996-01-01), Ors et al.
patent: 5585059 (1996-12-01), Kobayashi et al.
patent: 5783241 (1998-07-01), Bocabeille et al.
patent: 6165503 (2000-12-01), Dettmar et al.
patent: 7550168 (2009-06-01), Kelly et al.
patent: 2749482 (1997-12-01), None
patent: 1302275 (1973-01-01), None
patent: 1369198 (1974-10-01), None
patent: 1507445 (1978-04-01), None
patent: 1564452 (1980-04-01), None
patent: 3277259 (1991-12-01), None
patent: 2063148 (1996-07-01), None
USPTO Office Action dated May 27, 2008 in parent U.S. Appl. No. 10/488,329, filed Dec. 10, 2004.
USPTO Office Action dated Jul. 28, 2008 in parent U.S. Appl. No. 10/488,329, filed Dec. 10, 2004.
Xingwu et al., “Calcium alginate gels: formation and stability in the presence of an inert electrolyte,”Polymer, vol. 39, No. 13, pp. 2759-2764 (1998).

Affiliated with

Also associated with

Rating

Equipment does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Equipment, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Equipment will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2699572