公开(公告)号：US3613017A

公开(公告)日：1971-10-12

申请号：US3613017D

申请日：1969-04-28

Applicant: SCIENCE ACCESSORIES CORP

Inventor： HOWELLS JOSEPH A

IPC: H01L21/00 ,  H03K3/284 ,  H03K5/04 ,  H03K19/003 ,  H03K3/10 ,  H03K3/12 ,  H03K17/30

CPC classification number: H03K19/00392 ,  H01L21/00 ,  H03K3/284 ,  H03K5/04

Abstract: A monostable multivibrator circuit for producing a pulse of a fixed duration including a first D-type flip-flop having set, reset, clock and delay inputs, and a second D-type flip-flop having set, reset, clock and delay inputs. A trigger pulse triggers a change in state of the first D-type flip-flop, in turn causing a change in state in the second D-type flip-flop. The output of the second D-type flip-flop contains a capacitor storage circuit which serves to bypass the change in state of the second D-type flip-flop for a predetermined delay time, and feedback an exponentially increasing level to the first D-type flip-flop. When the charge across the capacitor reaches the threshold level of the first D-type flip-flop, the first flipflop output again changes condition, causing the second output to change correspondingly.

公开(公告)号：US3596832A

公开(公告)日：1971-08-03

申请号：US3596832D

申请日：1969-06-23

Applicant: SCIENCE ACCESSORIES CORP

Inventor： WHETSTONE ALBERT ,  FINE SAMUEL

IPC: F24F3/14 ,  F24F11/00 ,  G05D22/02 ,  G05D22/00

CPC classification number: G05D22/02 ,  F24F3/14 ,  F24F11/30 ,  F24F2110/10 ,  F24F2110/20

Abstract: A humidifier for use in a recirculating hot water and/or steam heating system. A bypass valve is provided for the controlled delivery of the system fluid to an absorbent material placed over the radiator or fin member of the heating system.

公开(公告)号：US3714689A

公开(公告)日：1973-02-06

申请号：US3714689D

申请日：1970-12-14

Applicant: SCIENCE ACCESSORIES CORP

Inventor： WHETSTONE A ,  FINE S ,  PHILLIPS S

IPC: H01J47/10 ,  H01J9/06 ,  H01J9/48

CPC classification number: H01J47/10

Abstract: An apparatus for producing curved or flat wire arrays for use in wire spark chamber devices having a wire spool holding means and wire feeding device; tensioning means; wire winding and spacing device; and a device for stretching and shaping the array. The wire is fed over tensioning pulleys about a threaded rod onto a wire winding and spacing device which comprises a support cylinder. The wound wires are attached to lucite strips mounted on the cylinder and then cut and removed to form a loose wire array. The wire array is then clamped in the stretching and shaping device which stretches the wires and forms the surface to the desired curvature.

Abstract translation: 一种用于生产具有线轴保持装置和送丝装置的线火花室装置中的弯曲或扁平线阵列的装置; 张力手段 线绕和间距装置; 以及用于拉伸和成形阵列的装置。 电线通过围绕螺纹杆的张紧滑轮进给到包括支撑筒的线绕组和间隔装置上。 卷绕的线连接到安装在圆柱体上的透明条，然后切割和移除以形成松散的线阵列。 然后将线阵列夹紧在拉伸和成形装置中，拉伸和成形装置拉伸导线并将表面形成期望的曲率。

公开(公告)号：US3574927A

公开(公告)日：1971-04-13

申请号：US3574927D

申请日：1969-01-29

Applicant: SCIENCE ACCESSORIES CORP

Inventor： WHETSTONE ALBERT L

IPC: H01J47/10 ,  H01Q15/14 ,  H01S4/00

CPC classification number: H01Q15/142 ,  H01J47/10 ,  Y10T29/49002 ,  Y10T29/49069 ,  Y10T29/49082 ,  Y10T29/49801 ,  Y10T29/4998

Abstract: A method of constructing a low-tension wire array including the steps of arraying wires on an expandable frame expanding the wires past their elastic limit, and releasing the frame tension until each wire hangs in catenary. The wires are then placed onto an epoxied sheet and the ends cut.

公开(公告)号：US3568060A

公开(公告)日：1971-03-02

申请号：US3568060D

申请日：1967-10-18

Applicant: SCIENCE ACCESSORIES CORP

Inventor： HOWELLS JOSEPH A

IPC: H01J47/10 ,  H03K5/1532 ,  G04F9/00

CPC classification number: H03K5/1532 ,  H01J47/10

Abstract: A device for digitally indicating the center of a pulse employing a pulse counter and a pulse generator having a fixed generating rate. Upon receipt of an initial pulse a first flipflop opens a first gating circuit and passes pulses to the counter. A second flip-flop receives the leading edge of a subsequent pulse to turn off the first gate and opens a second gate. The second gate in turn allows pulses at one-half the fixed generating rate to accumulate in the counter. The trailing edge of the second pulse changes the state of the second flip-flop and turns off the second gate. The accumulated count is now representative of the measure from the initial timing pulse to the center of the second pulse. A further flip-flop, upon receipt of a further pulse, changes state and insures that the gating circuits do not open to permit further counting. The two level counting is accomplished by a pulse frequency dividing stage connected to the pulse source, or, alternatively, by using the output of the first counter stage.

公开(公告)号：US3647962A

公开(公告)日：1972-03-07

申请号：US3647962D

申请日：1970-07-30

Applicant: SCIENCE ACCESSORIES CORP

Inventor： WHETSTONE ALBERT L

IPC: H01H13/70 ,  H03K3/57 ,  H04L17/12

CPC classification number: H03K3/57 ,  H01H13/70 ,  Y10S367/907

Abstract: This invention relates to a keyboard encoding device for converting the data represented by a key in a keyboard to a digital representation. The device employs a plurality of keys each individually operable to provide an acoustic shock wave in the form of a spark. Receptors arranged about the perimeter of the keyboard respond to the leading edge of the shock wave. The time period between generation of the spark and reception thereof by the shock wave receptor is digitized by means of a counting device responsive to the initiation of the spark and to the receipt of the shock wave by the receptor. Since each key is uniquely locatable with respect to the receptor, each key will produce a spark at a location which will take differing amounts of time to reach their receptor. The various digitization of these times are indicative or representative of the information attributed to each key respectively.

Abstract translation: 本发明涉及一种键盘编码装置，用于将由键盘中的键表示的数据转换为数字表示。 该装置采用多个键，每个键可单独操作以提供火花形式的声冲击波。 围绕键盘周边布置的受体响应于冲击波的前沿。 由冲击波接收器产生火花和接收之间的时间周期通过响应火花开始和接收器接收冲击波的计数装置进行数字化。 由于每个键都是相对于受体唯一定位的，所以每个键将在将要花费不同时间达到其受体的位置产生火花。 这些时间的各种数字化分别表示或代表归属于每个键的信息。

公开(公告)号：US3648277A

公开(公告)日：1972-03-07

申请号：US3648277D

申请日：1970-07-21

Applicant: SCIENCE ACCESSORIES CORP

Inventor： WHETSTONE ALBERT L ,  FINE SAMUEL

IPC: G06F3/033 ,  G06F3/046 ,  G06G7/04 ,  H03K13/02

CPC classification number: G06F3/046

Abstract: A coordinate digitizing device is provided with a localized source of magnetic energy positioned with respect to a wire array, each of said wires terminated in a common delay line. The magnetic energy is pulsed at a desired point, initiating a digitization time interval required for a pulse appearing along a wire of the array to traverse the delay line and reach a device for terminating digitization, and is an indication of the relative digital magnitude representative of the magnetic pulse device''s position above the array.

Abstract translation: 坐标数字化装置设置有相对于线阵列定位的局部的磁能源，每个所述导线终止于公共延迟线。 磁能在期望的点被脉冲，启动沿着阵列的线出现的脉冲穿过延迟线并到达用于终止数字化的装置所需的数字化时间间隔，并且是表示相对数字幅度的指示 磁脉冲器件位于阵列上方。

公开(公告)号：US3626483A

公开(公告)日：1971-12-07

申请号：US3626483D

申请日：1969-07-16

Applicant: SCIENCE ACCESSORIES CORP

Inventor： WHETSTONE ALBERT ,  FINE SAMUEL ,  BANKS WILLIAM ,  PHILLIPS STANELY

IPC: G06F3/033 ,  G01V1/02

CPC classification number: G06F3/03545

Abstract: A writing stylus for use as a graphical-input terminal for digital computers. The stylus will produce a fast rise time shock energy sound wave generated by a spark detectable by coordinately placed microphones, at the instant the spark is produced can be determined and recorded in digital form.