B28B 21/26
With a packer head serving as a sliding mould or provided with
Official title: with a packer head serving as a sliding mould or provided with guiding means for feeding the material
B28B21/26 (With a packer head serving as a sliding mould or provided with) appears on 18 US grants and 7 published applications in this corpus.
Search patents in B28B- Granted patents
- 18
- Published applications
- 7
- Assignees
- 12
- Inventors
- 27
- Latest grant
- 17 Mar 2015
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 2 |
| 2004 | 0 | 3 |
| 2005 | 0 | 0 |
| 2006 | 2 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Concrete roller head17 Mar 2015US 8,979,520 B2Hawkeye Concrete Products Co.
- Device and method for the production of a multi-layer concrete pipe27 Jul 2010US 7,763,201 B2Schlosser-Pfeiffer GmbH
- Concrete pipe manufacturing machinery and methods24 Oct 2006US 7,125,239 B2International Pipe Machinery Corporation
- Method and apparatus for the production of tubes from concrete mix10 Jan 2006US 6,984,118 B2Institut fur Fertigteiltechnik UND
- Method and machine for making concrete pipe22 Aug 2000US 6,106,749 A
- Concrete roller head14 Nov 2013US 2013/0302462 A1Hawkeye Concrete Products Co.
- Concrete pipe manufacturing machinery and method15 Feb 2007US 2007/0035065 A1
- Method and device for the production of a multi-layer concrete pipe2 Dec 2004US 2004/0237848 A1
- Device and method for the production of a multi-layer concrete pipe18 Nov 2004US 2004/0227274 A1Schlosser-Pfeiffer GmbH
- Concrete pipe manufacturing machinery and methods7 Oct 2004US 2004/0195725 A1International Pipe Machinery Corporation
Most cited
By later US patents
- Packerhead pipe making machine16US 4,118,165 AHydrotile Canada Limited · 1978
- Concrete pipe making machine15US 4,957,424 AHydrotile Machinery Company · 1990
- Pallet Positioner9US 4,226,568 AHydrotile Canada Limited · 1980
- Device for manufacturing concrete parts7US 5,040,968 AGeorg Prinzing GmbH & Co. KG · 1991
- Packerhead assembly6US 5,080,571 AInternational Pipe Machinery Corporation · 1992