This application is a continuation of application Ser. No. 08/802,763, filed on Feb. 20, 1997, now U.S. Pat. No. 5,829,509. This application claims the benefit of priority to U.S. Provisional Patent application Ser. No. 60/012,308, filed on Feb. 23, 1996.
Number | Name | Date | Kind |
---|---|---|---|
2385962 | Barnett | Oct 1945 | |
2813318 | Horth | Nov 1957 | |
2988351 | Barnett et al. | Jun 1961 | |
3534946 | Westerkamp et al. | Oct 1970 | |
3607071 | Staffin et al. | Sep 1971 | |
3676647 | Staffin et al. | Jul 1972 | |
3677404 | Staffin et al. | Jul 1972 | |
3737280 | Cromp | Jun 1973 | |
3760800 | Staffin et al. | Sep 1973 | |
3871438 | Vissers et al. | Mar 1975 | |
4068389 | Staffin et al. | Jan 1978 | |
4140467 | Ellison et al. | Feb 1979 | |
4161389 | Staffin et al. | Jul 1979 | |
4211274 | Slowinski et al. | Jul 1980 | |
4242077 | Hyre | Dec 1980 | |
4294436 | Takahashi | Oct 1981 | |
4340433 | Harding | Jul 1982 | |
4392814 | Harding | Jul 1983 | |
4411709 | Nakanishi | Oct 1983 | |
4415444 | Guptail | Nov 1983 | |
4457352 | Scheffer | Jul 1984 | |
4457788 | Staffin et al. | Jul 1984 | |
4478572 | Selli | Oct 1984 | |
4512821 | Staffin et al. | Apr 1985 | |
4519718 | Staffin et al. | May 1985 | |
4524957 | Staffin et al. | Jun 1985 | |
4544013 | Kearney et al. | Oct 1985 | |
4547228 | Girrell et al. | Oct 1985 | |
4563151 | Vogel | Jan 1986 | |
4577671 | Stephan | Mar 1986 | |
4579319 | Sasaki | Apr 1986 | |
4582301 | Wunning | Apr 1986 | |
4604055 | Mackenzie | Aug 1986 | |
4613713 | Staffin et al. | Sep 1986 | |
4620586 | Musschoot | Nov 1986 | |
4623400 | Japka et al. | Nov 1986 | |
4648836 | Thom | Mar 1987 | |
4671496 | Girrell et al. | Jun 1987 | |
4700766 | Godderidge | Oct 1987 | |
4779163 | Bickford et al. | Oct 1988 | |
4830605 | Hodate et al. | May 1989 | |
4955425 | McKenna | Sep 1990 | |
4957431 | Eng et al. | Sep 1990 | |
5018707 | Hemsath et al. | May 1991 | |
5169913 | Staffin et al. | Dec 1992 | |
5253698 | Keough et al. | Oct 1993 | |
5294094 | Crafton et al. | Mar 1994 | |
5350160 | Crafton et al. | Sep 1994 | |
5354038 | Crafton | Oct 1994 | |
5378434 | Staffin et al. | Jan 1995 | |
5423370 | Bonnemasou et al. | Jun 1995 | |
5439045 | Crafton | Aug 1995 | |
5531423 | Crafton et al. | Jul 1996 | |
5565046 | Crafton et al. | Oct 1996 |
Number | Date | Country |
---|---|---|
1197981 | Dec 1985 | CAX |
2072874 | Dec 1970 | FRX |
2307773 | Feb 1973 | DEX |
2315958 | Apr 1974 | DEX |
2337894 | Nov 1974 | DEX |
2458150 | Dec 1975 | DEX |
2914221 | Apr 1979 | DEX |
3206048 | Feb 1982 | DEX |
4012158 | Jan 1989 | DEX |
56-53867 | May 1981 | JPX |
5939464 | Aug 1982 | JPX |
58-25860 | Feb 1983 | JPX |
59-219410 | Dec 1984 | JPX |
60-92040 | May 1985 | JPX |
2074022 | Sep 1985 | JPX |
62-110248 | Jul 1987 | JPX |
63-16853 | Jan 1988 | JPX |
63-108941 | May 1988 | JPX |
2104164 | Aug 1990 | JPX |
1129012 | Jul 1982 | SUX |
0234810 | Mar 1985 | SUX |
1392405 | Apr 1975 | GBX |
1564151 | Apr 1980 | GBX |
1569152 | Jun 1980 | GBX |
2137114 | Oct 1984 | GBX |
2230720 | Oct 1990 | GBX |
Entry |
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Economical Used Energy Type Continuing Heat Treating Furnace For Aluminum Castings--Kogyo-Kanetsu vol. 21 No. 2 p. 29-36--Published Mar. 1984. |
Brochures describing Beardsley & Pipe Pneu-Reclaim Sand Reclamation Units--Prior to Aug. 13, 1992. |
Brochure describing Fataluminum Sand Reclamation Units--Prior to Aug. 13, 1992. |
Paul M. Crafton--Heat Treating Aging System Also Permits Core Sand Removal--Reprinted from Sep. 1989--Modern Casting Magazine. |
Preliminary Remarks dated Jul. 30, 1991 and filed in Serial No. 07/705,626. |
Declaration by P.M. Crafton & S.P. Crafton dated Jul. 26, 1991 & filed in Serial No. 07/705,626. |
On Sale Description Re: System of Consolidated Engineering System. |
Sale Brochure describing Thermfire Brand Sand Reclamation, Gudgeon Brothers, Ltd. believed to be known by others prior to Sep. 1989. |
Sales brochure describing Simplicity/Richards Gas Fired Thermal Reclamation System, Simplicity Eng., Inc., believed to be known by others prior to Sep. 1989. |
Sales Brochure describing Air Trac Brand Fluidizing Conveyor, Air Trac Systems Corp., belived to be known by others prior to Sep. 1989. |
Sales brochure describing Fluid Bed Calcifer Thermal Sand Reclamation Systems, Dependable Foundry Equip. Co., belived to be known by others prior to Sep. 1989. |
Number | Date | Country | |
---|---|---|---|
Parent | 802763 | Feb 1997 |