Patents Assigned to Gross & Froelich GmbH & Co.
  • Patent number: 11052704
    Abstract: The present disclosure relates to a caster, having a housing, having an axle pin which is arranged in a housing opening which is oriented substantially horizontally, and on which at least one wheel is mounted, having, at the top, a pin opening oriented substantially vertically, for receiving a pivot pin, and having a braking device which brakes the at least one wheel, wherein the housing opening for the axle pin allows limited vertical displaceability of the axle pin and the braking device comprises at least one resilient housing part which acts on the axle pin. In order to provide a mechanically reliable braking device, the braking device is additionally provided with at least one spring element which cooperates with the at least one resilient housing part and amplifies the effect of its braking force and/or increases the mechanical load-bearing capacity of the at least one resilient housing part.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: July 6, 2021
    Assignee: GROSS + FROELICH GMBH & CO.
    Inventors: Hans-Wilhelm Rottenau, Ralph Von Bordelius
  • Patent number: 9925829
    Abstract: The invention relates to a castor with at least one wheel (16, 18), a housing (10) carrying the at least one wheel (16, 18), and a runner pin (14) which is arranged so as to be movable to a limited extent in a substantially vertically oriented housing opening (12) and which serves to connect the castor to an object, wherein the housing (10) accommodates a brake device which frees the at least one wheel (16, 18) in a state in which the castor is loaded by a weight via the runner pin (14) and which acts with a braking effect on the at least one wheel (16, 18) in a state when not loaded by a weight.
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: March 27, 2018
    Assignee: GROSS + FROELICH GMBH & CO. KG
    Inventors: Ralph von Bordelius, Hans-Wilhelm Rottenau
  • Patent number: 8454098
    Abstract: The invention relates to a wheel for a furniture roller having a locking device, having a rigid wheel core with a hub for holding an axle and having an elastic wheel casing as a running surface. According to the invention, in order to be able to realize a locking device which is effective even for small wheel diameters, an inwardly pointing toothing is provided on an outer ring of the wheel core, wherein at least one aperture is formed in the outer ring between the tooth flanks, into which aperture a web, which is aligned axially in parallel and which is offset radially inward with respect to the running surface, of the wheel casing engages in a positively locking manner.
    Type: Grant
    Filed: February 24, 2009
    Date of Patent: June 4, 2013
    Assignee: Gross + Froelich GmbH & Co. KG
    Inventors: Ralph Von Bordelius, Oswald Flik
  • Patent number: 8397345
    Abstract: The invention relates to a castor having a brake device with a housing (10) with a substantially vertically aligned receiving opening (12) for a runner pin (14) for connecting the castor to an object to be supported by the castor, and having an axle bolt (16) which extends through the housing transversely with respect to the receiving opening and which bears at least one wheel (18, 18?), with the brake device having a brake slide (20) which can be moved by an actuating lever (22) from the outside from a free-running position into a braked position. To provide inter alia a locking facility independently of the rotational position of the wheel, it is proposed according to the invention that the brake slide (20) bears an elastic brake lining (36) which faces toward a braking section (32) of the at least one wheel.
    Type: Grant
    Filed: July 13, 2010
    Date of Patent: March 19, 2013
    Assignee: Gross + Froelich GmbH & Co. KG
    Inventors: Ralph Von Bordelius, Hans-Wilhelm Rottenau
  • Patent number: 8151412
    Abstract: A caster, in particular a free-running caster is provided. The caster includes twinned wheels and a housing with a substantially vertically aligned upper-side journal opening for holding a rotary journal which connects the caster to an item of furniture or to some other object. The caster also has an axle bolt which extends through the housing transversely with respect to the journal opening and supports the wheels. In order to permit cost-effective production with sufficient load capacity in the region of the axle receptacle, an axle carrier having a passage opening for the axle bolt is arranged in the housing. The axle carrier is composed of a material with a higher strength than the housing.
    Type: Grant
    Filed: October 19, 2007
    Date of Patent: April 10, 2012
    Assignee: Gross + Froelich GmbH & Co. KG
    Inventors: Ernst Berger, Ralph von Bordelius
  • Patent number: 8015664
    Abstract: The invention relates to a twin-wheel caster provided with a housing containing a journal opening on a top side thereof, which is oriented in a substantially vertical direction for receiving a pivot connecting a roller to a furniture or another object, a shaft-shaped slide opening on the lower side thereof, which is laterally offset with respect to the journal opening and used for receiving a cross head supported by the housing with the aid of a spring, wherein the cross head has a through opening which is oriented in a substantially perpendicular direction with respect to the shaft-shaped slide opening and receives a swivel pin bearing two wheels, is placed in the housing in such a way that it is slidable between rolling and braking positions and recesses embodied in the slide opening limiting walls and used for passing the swivel pin.
    Type: Grant
    Filed: April 27, 2006
    Date of Patent: September 13, 2011
    Assignee: Gross & Froelich GmbH & Co. KG
    Inventors: Ernst Berger, Ralph Von Bordelius
  • Patent number: 4807328
    Abstract: A roller intended in particular for office furniture comprises a supporting body (1) made from a plastic material, an axle (2) mounted in the supporting body, at least one wheel (2) seated on the axle, a metallic pin (5) seated rotatably in the metallic body and arranged in offset position relative to the axle (2), in a plane extending perpendicularly to the axle, and a wiper contact conductively connected with the pin (5) and provided with a resilient portion projecting beyond the plane (20) extending perpendicularly to the pin (5) and being tangent to the at least one wheel (3). The resilient portion of the wiper contact is formed by a helical spring (12) standing substantially perpendicular to the tangential plane (20) and carrying on its free end a contact body (15) projecting beyond the tangential plane (20).
    Type: Grant
    Filed: March 11, 1987
    Date of Patent: February 28, 1989
    Assignee: Gross & Froelich GmbH & Co.
    Inventor: Bruno Hezel
  • Patent number: D561015
    Type: Grant
    Filed: June 9, 2006
    Date of Patent: February 5, 2008
    Assignee: Gross + Froelich GmbH & Co. KG
    Inventor: Stefan Brodbeck
  • Patent number: D592042
    Type: Grant
    Filed: August 11, 2008
    Date of Patent: May 12, 2009
    Assignee: Gross + Froelich GmbH & Co. KG
    Inventor: Stefan Brodbeck
  • Patent number: D955862
    Type: Grant
    Filed: November 8, 2018
    Date of Patent: June 28, 2022
    Assignee: Gross + Froelich GmbH & Co.
    Inventors: Ralph Von Bordelius, Oswald Flik
  • Patent number: D991018
    Type: Grant
    Filed: January 27, 2021
    Date of Patent: July 4, 2023
    Assignee: GROSS + FROELICH GMBH & CO. KG
    Inventor: Ferdinand Krauss