David H Ditlefsen

US Patent:

6634505, Oct 21, 2003

Filed:

Feb 13, 2002

Appl. No.:

09/936718

Inventors:

Kirk Sawall - Luck WI
David H. Ditlefsen - Centuria WI
Roland E. Küper - Bochum, DE

Assignee:

Durex Products, Inc. - Luck WI

International Classification:

B07B 146

US Classification:

209405, 209399, 209408

Abstract:

The invention pertains to a sieve bed for a sifting machine, consisting of rectangular sieve elements ( ), which are attached to a support frame ( ) with their edges abutting each other, the support frame being provided with mushroom-shaped mounting pins ( ), each of which is provided with a head which engages in an interlocking manner in corresponding recesses ( and ) of the sieve elements ( ). To facilitate the assembly and disassembly of the sieve elements in a sieve bed of this type and to protect the connection from premature wear the invention proposes that the receptacle ( ) for the head ( ) of the mounting pin ( ) be closed off at the top; that the receptacle ( ) for the head ( ) of the mounting pin ( ) be provided at the bottom with an entrance opening for the head ( ) of the mounting pin ( ); and that the wall of the receptacle ( ) be provided with an inward-projecting bed ( ), which can be snapped under the head ( ) of the mounting pin ( ).

US Patent:

7273151, Sep 25, 2007

Filed:

Oct 2, 2003

Appl. No.:

10/677457

Inventors:

Kirk Sawall - Luck WI, US
David H. Ditlefsen - Centuria WI, US
Roland E. Küper - Bochum, DE

Assignee:

Durex Products, Inc. - Luck WI

International Classification:

B07B 1/46

US Classification:

209405, 209408

Abstract:

The invention pertains to a sieve bed for a sifting machine, consisting of rectangular sieve elements (), which are attached to a support frame () with their edges abutting each other, the support frame being provided with mushroom-shaped mounting pins (), each of which is provided with a head which engages in an interlocking manner in corresponding recesses (and ) of the sieve elements (). To facilitate the assembly and disassembly of the sieve elements in a sieve bed of this type and to protect the connection from premature wear the invention proposes that the receptacle () for the head () of the mounting pin () be closed off at the top; that the receptacle () for the head () of the mounting pin () be provided at the bottom with an entrance opening for the head () of the mounting pin (); and that the wall of the receptacle () be provided with an inward-projecting bead (), which can be snapped under the head () of the mounting pin ().

US Patent:

D4454375, Jul 24, 2001

Filed:

Apr 26, 2000

Appl. No.:

D/122412

Inventors:

Kirk Sawall - Luck WI
David Henry Ditlefsen - Centuria WI
Roland E. Kuper - 44791 Bochum, DE

International Classification:

1509

US Classification:

D15147