Mark Alexander Beran

US Patent:

20130300043, Nov 14, 2013

Filed:

Jul 15, 2013

Appl. No.:

13/941799

Inventors:

Todd Michael Whitaker - Boulder CO, US
Adam Cuthbert Pauluhn - Niwot CO, US
Mark A. Beran - Niwot CO, US

International Classification:

F16F 1/16

US Classification:

267154

Abstract:

A tubular torsion bar including an elongated inner tube of flexible material having a proximal end and a distal end, an elongated outer tube of flexible material having a proximal end and a distal end, a cylindrically shaped joiner bushing fixedly attached to and positioned partially between the distal end of the inner tube and the distal end of the outer tube with the inner tube and outer tube positioned in coaxial and substantially coextensive concentric nesting positions, external apparatus mounting the joiner bushing to maintain axial alignment of the distal and proximal ends of the inner tube and the outer tube and for limited rotational movement, and a mounting and output system fixedly attached to the proximal ends of the inner tube and the outer tube.

US Patent:

59562498, Sep 21, 1999

Filed:

Feb 26, 1997

Appl. No.:

8/807024

Inventors:

Mark A. Beran - Niwot CO
Davide Andrea - Boulder CO

Assignee:

Dorma Door Controls Inc. - Reamstown PA

International Classification:

G05B 1918
H02P 100

US Classification:

36416702

Abstract:

A method is disclosed for selective alteration and control of door movement modes utilizing an apparatus that is primarily non-hydraulic and incorporated with a known mechanism which is functional independently from the apparatus in one mode of operation and which includes a piston for controlling door closing characteristics by selected fluid flow within the mechanism. The apparatus includes a motor driven lead screw having a linearly movable shuttle unit mounted thereon, the shuttle unit being positioned relative to the piston of the mechanism to accommodate nonattached contact with the piston to urge the piston, when the shuttle unit is moved, in a direction that will at least provide selective assistance with door opening in another mode of operation. Operation of the apparatus is controlled by programming of a related controller including non-volatile memory.

US Patent:

49760653, Dec 11, 1990

Filed:

Nov 20, 1989

Appl. No.:

7/438854

Inventors:

Mark A. Beran - Niwot CO
Allan J. Evans - Boulder CO

Assignee:

BC Research and Development, Inc. - Niwot CO

International Classification:

E05D 1502

US Classification:

49 43

Abstract:

A speed control apparatus for controlling the rate of motion of a door is disclosed which includes a shaft connected with the door by a gear train for causing rotation of the shaft at a preselected relative rate of rotation related to the rate of motion of the door by a preselected ratio, a braking assembly including a brake drum spaced from the shaft and first and second brake shoes pivotably connected at one end thereof with a carrying member attached to the shaft and having a single biasing spring adjustably connected between the other ends thereof, the brake shoes having a contact surface made of a non-asbestos friction material for contacting the brake drum when a selected rate of rotation of the shaft is exceeded, and an improved housing which is more efficiently sealable against invasion of moisture into the housing and the escape of lubricants from the housing.

US Patent:

44575068, Jul 3, 1984

Filed:

Sep 16, 1981

Appl. No.:

6/302877

Inventors:

William H. Ashbee - Boulder CO
Mark A. Beran - Niwot CO
Donald F. Colglazier - Longmont CO
Donovan M. Janssen - Boulder CO
John P. Mantey - Boulder CO
Ronald J. Martin - Loveland CO
Gerald P. Patch - Boulder CO
Larry E. Rittenhouse - Boulder CO
James A. Valent - Longmont CO

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

B65H 522
B65H 3112

US Classification:

271 31

Abstract:

A servo-controlled recirculating automatic document feeder (RADF) includes a plurality of independently driven document transport devices. A picker mechanism separates documents in seriatim from a stack. An entry turnaround transport device buffers and delivers picked documents to a platen transport device for exposure. After exposure, the document is transported along a simplex or duplex path for duplex or simplex copying. The document is then buffered in an exit turnaround transport device and is subsequently returned to the stack. Each transport device is independently driven by a motor and a closed-loop servo. A common reference oscillator generates source signals for the servo-loops. A microcomputer operates on the source signals and generates reference signals for driving the transport devices.

US Patent:

47308230, Mar 15, 1988

Filed:

Nov 28, 1986

Appl. No.:

6/935886

Inventors:

Daniel A. Barela - Boulder CO
Mark A. Beran - Niwot CO
Louis A. Bustamante - Berthoud CO
Cecil M. McDonald - Longmont CO
Ronald E. Reese - Boulder CO
Roger D. Shepherd - Rollinsville CO

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

B65H 308

US Classification:

271 31

Abstract:

Sheet feeder having adaptive mechanism for assuring dependable automatic operation when the stack of sheets to be fed consists of sheets having varying thicknesses and weights. In a sheet feeder having pickers to move a document from the top of a stack of sheets supported by a moveable table to a feed-in position, the latter possibly including a vacuum belt for moving the document, sensors supply signals to indicate a sheet has been picked. After moving the pickers and table to initial positions, the controller moves the picker to a predetermined reference position. If a sheet is picked above or below the predetermined initial position, the position of the table is adjusted accordingly. In a second embodiment in a recirculating automatic sheet feeder, the table is initially positioned then after feeding the sheets from the stack once, it is initialized at a second predetermined position depending on the number of documents in the stack and on the position of the table prior to picking the documents a second time.

US Patent:

56875070, Nov 18, 1997

Filed:

Sep 29, 1995

Appl. No.:

8/537035

Inventors:

Mark A. Beran - Niwot CO

Assignee:

Dorma Door Controls Inc. - Reamstown PA

International Classification:

E05F 1124

US Classification:

49340

Abstract:

Apparatus is are disclosed for selective alteration and control of door movement modes, the apparatus being primarily non-hydraulic and incorporated with a known mechanism which is functional independently from the apparatus in one mode of operation and which includes a piston for controlling door closing characteristics by selected fluid flow within the mechanism. The apparatus includes a motor driven lead screw having a linearly movable shuttle unit mounted thereon, the shuttle unit being positioned relative to the piston of the mechanism to accommodate nonattached contact with the piston to urge the piston, when the shuttle unit is moved, in a direction that will at least provide selective assistance with door opening in another mode of operation.

US Patent:

59137630, Jun 22, 1999

Filed:

Feb 26, 1997

Appl. No.:

8/806210

Inventors:

Mark A. Beran - Niwot CO
Davide Andrea - Boulder CO

Assignee:

Dorma Door Controls, Inc. - Reamstown PA

International Classification:

E06B 300

US Classification:

49506

Abstract:

A method for selective alteration and control of door movement modes utilizing an apparatus that is primarily non-hydraulic and incorporated with a known mechanism which is functional independently from the apparatus in one mode of operation and which includes a piston for controlling door closing characteristics by selected fluid flow within the mechanism. The apparatus includes a motor driven lead screw having a linearly movable shuttle unit mounted thereon, the shuttle unit being positioned relative to the piston of the mechanism to accommodate nonattached contact with the piston to urge the piston, when the shuttle unit is moved, in a direction that will at least provide selective assistance with door opening in another mode of operation. Operation of the apparatus is controlled by programming of a related controller including non-volatile memory.

US Patent:

59261064, Jul 20, 1999

Filed:

May 12, 1997

Appl. No.:

8/855854

Inventors:

Mark A. Beran - Niwot CO
Farro Fattahi - Vienna VA

Assignee:

BC Creations, Inc. - Niwot CO

International Classification:

G06F 704

US Classification:

34082531

Abstract:

Apparatus and methods for entryway access control using serial discretely coded radio frequency transmissions initiated by a single user access request signal. The control apparatus is battery operated and includes a user actuatable input selectively generating a single electrical initiation signal. Circuitry provides first and second conditioned output signals responsive to receipt of the single electrical initiation signal, the output signals enabling first and second transmission channels, respectively, of an RF transmitter or transmitters. A signal delaying circuit delays output of the second conditioned output signal relative to output of the first conditioned output signal.