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.
Method For Electromechanical Control Of The Operational Parameters Of A Door In Conjunction With A Mechanical Door Control Mechanism
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.
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.
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.
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.
Apparatus For Selective Alteration Of Operating Parameters Of A Door
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.
Method For Controlling The Operational Modes Of A Door In Conjunction With A Mechanical Door Control Mechanism
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.
Access Control Using Serial Discretely Coded Rf Transmissions Initiated By A Single Event
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.
Name / Title
Company / Classification
Phones & Addresses
Mark Beran President
Bc Creations Inc Business & Engineering Consulting
PO Box 629, Longmont, CO 80544 308 3 Ave, Longmont, CO 80544 3036522775