Patents by Inventor Lothar Lehr

Lothar Lehr has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4998702
    Abstract: This invention relates to a suspension apparatus for control devices which can be assembled from a connection flange or connection rotary joint, support beam sections, elbow joints, or intermediate joints which can be connected with a wall or the body of a machine, and a coupling unit which can be connected to the control device. The support beam section comprises an essentially U-shaped base profile section and a cover profile section closing the same. The base profile section is divided, by means of a separating bar parallel to its crossbar, into a support part constructed as a closed hollow profile and an open U-shaped mounting part opposed to the bar. The connection bars, which proceed in a longitudinal direction in the support part and in the mounting part, are integrally formed with screw mountings.
    Type: Grant
    Filed: February 21, 1989
    Date of Patent: March 12, 1991
    Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KG
    Inventors: Wolfgang Reuter, Jurgen Debus, Lothar Lehr
  • Patent number: 4997155
    Abstract: This invention relates to a suspension apparatus for control devices which can be assembled from a connection flange or connection rotary joint, support beam sections, angle units, or intermediate joints, which can be connected with a wall or a machine body and a coupling unit which can be connected with the control device. The support beam sections have an essentially U-shaped base profile section and a closing cover profile secton. The base profile section, with a separating bar positioned parallel to its bar, is divided into a support part constructed as a closed hollow profile and an open U-shaped mounting part turned away from the bar. In the support part and in the mounting part, longitudinally directed and penetrating connecting bars are integrally formed with screw mountings. The angle comprising a corner connector and a covering cap creates, for such suspension apparatus, a rigid, highly-stressable corner connector between support beam sections placed perpendicular to one another.
    Type: Grant
    Filed: February 21, 1989
    Date of Patent: March 5, 1991
    Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KG
    Inventors: Wolfgang Reuter, Jurgen Debus, Lothar Lehr
  • Patent number: 4953821
    Abstract: This invention relates to a suspension apparatus for control devices, control panels and the like, which can be assembled from a connection flange or connection rotary joint, support body sections, angle units, and intermediary joints which can be connected with a wall or a machine body, and a coupling unit which can be connected with the control device, the control panel or the like. There is a stable support body section providing easy installation of the connection lines and a simple connection with the adjacent parts of the suspension apparatus. The support body sections comprise an essentially U-shaped base profile section which with a separating bar proceeding in parallel to its bar is divided into a closed support part and an open, U-shaped mounting part turned away from the bar. Longitudinally directed connection bars with penetrating threaded reception mountings are integrally formed both on the support part as well as on the mounting part.
    Type: Grant
    Filed: February 21, 1989
    Date of Patent: September 4, 1990
    Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KG
    Inventors: Wolfgang Reuter, Jurgen Debus, Lothar Lehr
  • Patent number: 4896905
    Abstract: This invention is an improved switch cabinet latch of the type having a cabinet body and a cabinet door hinged to it with the door held in closed position by means of a push-rod lock on the cabinet door with push rods movable axially by rotational movement of an actuating element such that in the closed position closing ends on the push rods which face away from the push-rod lock reach behind closing faces mounted on the cabinet body while in the open position they move away from the closing faces. By virtue of the special configuration of the ends of the push rods and lock blocks mounted on the cabinet body, an improved clamping of the door to the cabinet body is achieved in combination with a hasp of the push-rod lock in the closed position. This clamping is initiated in forced sequence by two steps in the rotational movement of the actuating element of the push-rod lock.
    Type: Grant
    Filed: March 29, 1988
    Date of Patent: January 30, 1990
    Assignee: Rittal-Werk Rudolf LOH GmBH & Co. KG
    Inventors: Lothar Lehr, Manfred Wetzel
  • Patent number: 4878777
    Abstract: This invention concerns an improved socket for a control panel of the type having four angled corner pieces, at least two transverse recess members and at least two longitudinal recess members forming a frame. Dimensional stability and torsional rigidity of the socket are greatly increased due to the fact that vertical connecting flanges are bent at right angles along the free edges of the panel-mounting flanges at least in the area of the vertical mounting flanges for mounting of the transverse recess member, and such connecting flanges are connected to the recess-member mounting flanges when the transverse recess members are installed.
    Type: Grant
    Filed: March 15, 1988
    Date of Patent: November 7, 1989
    Assignee: Rittal-Werk
    Inventors: Jurgen Debus, Lothar Lehr
  • Patent number: 4843519
    Abstract: This invention relates to a switching panel with a desk-like casing part, the open upper side of which is provided with a peripheral sealing flange and which is inclined downwardly to its forward wall. The casing opening can be closed by a lid, which is supported in a hinged manner in the area of the upper, horizontal side of the casing opening. The lid has a peripheral rounded edge which in the closed position of the lid encloses the sealing flange and extends with the forward and edge sections of the lid over a portion of the forward wall of the casing part. The free end of the forward edge section is bent toward forward wall of the casing part. To avoid injury when closing the lid, the free end of the forward edge section is first bent inwardly at an acute angle forming a first handle section. The free end extends approximately to the free edges of the laterally adjacent edge sections.
    Type: Grant
    Filed: March 7, 1988
    Date of Patent: June 27, 1989
    Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KG
    Inventor: Lothar Lehr
  • Patent number: 4665654
    Abstract: The present invention relates to a switchboard cabinet comprising a box-like cabinet body with an opening, a door which seals the opening of the cabinet, and a door frame provided in the opening of the cabinet connected to the inner panels of the cabinet body, whereby when the door is closed, a frame sealing member in the door frame bears against a sealing element provided inside the door, and the door is provided with a continuous inwardly bent perimeter flange at a right angle to the surface of the door. The joint between the cabinet body and the door, when it is closed, may be completely sealed from the weather by means of a cover strip fastened in a recess between the cabinet body and door frame which extends over and beyond the door and has a sealing lip which seals against the perimeter flange of the cabinet door, so that the cabinet is suitable for outdoor installation.
    Type: Grant
    Filed: October 15, 1985
    Date of Patent: May 19, 1987
    Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KG
    Inventors: Horst Stedron, Lothar Lehr