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Access identification apparatus
| Details |
Inventors: Platt, John D.;
Assignee: A.R.M. (Costa Mesa, CA)
Primary Examiner: Lyddane; William E.
Assistant Examiner:
Attorney, Agent or Firm: Haefliger; William W.
Access identification apparatus which includes key operated switch actuating plates with exterior tangs that rock in one rotary direction to rock switch actuating elements in the opposite angular direction. |
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DETAILED DESCRIPTION In FIGS.
1-5, the access identification apparatus 10 includes a housing 11 having top, bottom and side walls 12-15 as shown, although it will be understood that the housing may be oriented in other directions.
End walls may be provided at 16 and 17 in FIGS.
4 and 5.
Located within the housing adjacent wall 12 is an insulative mounting board 18 suitably attached to wall 12, and underlying an opening 19 in that wall.
Board 18 carries a terminal plug 20 having electrical pins 21 that project through board 18 and into sockets in a switch receptacle 22.
The latter carries a plurality of switch actuating elements 23 (such as "dip" switches) extending in a row as seen in FIG.
3.
When those elements are selectively rocked from positions shown in FIG.
4 to positions shown in FIG.
5, the switch arms 23a in receptacle 22 are closed.
FIG.
12 shows such switch arms as closable against terminals 23b.
The switch may be binary coded, whereby a binary coded output appears at output lead 24 corresponding to selective closing of the switches.
Board 18 also has conductive circuitry to suitably connect plug 20 with the dip switches and a strobe switch.
Such selective closing is effective in response to turning of a key having identity shoulders corresponding to the selected switches to be closed.
See for example key 25 in FIGS.
3, 4, 5, 10 and 11, with selected identity shoulders indicated at 26, 27, 28 and 29 corresponding to switch actuating pawls 30a, 30f, 30i and 30j in FIG.
3, to be referred to later.
Such pawls, rotated in response to turning of the key, in the manner to be described, effect closing of corresponding switches via rocking of corresponding elements 23.
Also provided is means including structure to receive insertion of the key, to be responsive to movement of the identity shoulders to effect actuation of the switch actuating elements 23, corresponding to the coded identity shoulders on the key.
Such means may typically and advantageously include a rotary receiver to receive insertion of the key
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Metal Working 
