Prestressed concrete casting apparatus and method

Details Prestressed concrete casting apparatus and method Prestressed concrete casting apparatus and method

2006-11-21

2006-11-21

Del Sole, Joseph S. (Department: 1722)

Plastic article or earthenware shaping or treating: apparatus

Distinct means to feed, support or manipulate preform stock...

And means to apply stress to preform and uniting in stressed...

C249S063000, C249S093000, C249S120000, C249S139000

Reexamination Certificate

active

07137800

ABSTRACT:
A prestressed concrete casting apparatus includes a prestressing element (e.g., wire cable or rod) pretensioning fixture of simple easy to use construction, and great strength/rigidity for withstanding considerable pretensioning forces. Advantageously, a clamshell-type mold form may be used together with the pretensioning fixture, in such a manner that the mold form is easily properly locatable on the pretensioning fixture. The form can be removed for reuse without moving the pretensioning fixture or otherwise disturbing the casting, which is permitted to continue to cure in the stationary pretensioning fixture. Maintaining the pretensioning fixture stationary during the process lends greater structural integrity and stability to the pretensioning fixture under the considerable forces set-up by the pretensioning of the prestressing elements.

REFERENCES:
patent: 780321 (1905-01-01), Burkholder et al.
patent: 832594 (1906-10-01), Coller
patent: 994912 (1911-06-01), Elliot
patent: 1593696 (1926-07-01), Hyden et al.
patent: 1762815 (1930-06-01), Gloeser
patent: 2495100 (1950-01-01), Henderson
patent: 2655708 (1953-10-01), Eschenbrenner
patent: 3223379 (1965-12-01), Erickson
patent: 3260494 (1966-07-01), Deigaard
patent: 3489626 (1970-01-01), Rubenstein
patent: 3583047 (1971-06-01), Uchiyama
patent: 3652756 (1972-03-01), Van Buren
patent: RE27732 (1973-08-01), Van Buren
patent: 3963056 (1976-06-01), Shibuya et al.
patent: 3993419 (1976-11-01), Mori et al.
patent: 4178338 (1979-12-01), Bondpers et al.
patent: 4247516 (1981-01-01), Morgan
patent: 4273740 (1981-06-01), Marchesi et al.
patent: 4421710 (1983-12-01), Borcoman
patent: 4755117 (1988-07-01), Onnenberg et al.
patent: 4758393 (1988-07-01), Cazenave et al.
patent: 5007814 (1991-04-01), Saunders et al.
patent: 5156818 (1992-10-01), Manchak et al.
patent: 5186881 (1993-02-01), Beaman
patent: 5229062 (1993-07-01), Caggiani
patent: 5240395 (1993-08-01), O'Conner et al.
patent: 5766648 (1998-06-01), Eriksson et al.
patent: 5819487 (1998-10-01), Bull et al.

Affiliated with

Also associated with

Rating

Prestressed concrete casting apparatus and method does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3685936