Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Electrical & Energy
Class Information
Number: 335
Name: Electricity: magnetically operated switches, magnets, and electromagnets >
Description: This class is restricted to the structure of electric current switching devices or relays of general application for closing or opening electrical circuits which devices are magnetically operated or to magnet structure, per se, either electromagnets or permanent magnets, adapted for use as a source of magnetic flux for performing external work.










Class Number Class Name No. of Patents
335/1

Combined diverse switches (e.g., manual-actuated and art type)

10
335/2

Electromagnetically actuated switches

26
335/99

Alternating or fluctuating current type

1
335/100

Induction or eddy current (e.g., vane or closed conductive loop)

8
335/102

Polyphase

4
335/101

Preselected or synchronous frequency responsive

1
335/104

With chatter, bounce or vibration-prevention means

9
335/105

With damping or adjustment means

11
335/103

With plural magnetic-actuating structures

5
335/6

Automatic circuit-interrupting devices (e.g., circuit-protective devices)

333
335/8

Multipole or polyphase

138
335/10

With common latch or trip means

50
335/9

With individual latch or trip means in each leg

36
335/11

Plural switches

25
335/7

Responsive to plural diverse circuit conditions (e.g., voltage and current)

15
335/18

Responsive to predetermined or abnormal current condition (e.g., direction, phase angle or amplitude)

266
335/19

Zero current

8
335/20

Voltage responsive (under, over or no voltage)

120
335/13

With auxiliary switch means (e.g., for energizing coil)

69
335/15

With contact biasing, holding or pressure control means

48
335/16

Magnetic or electrodynamic (e.g., blowon or blowoff)

332
335/46

With contact rebound or other undesirable motion prevention means

32
335/14

With direct connected contact separating means

113
335/21

With latch or trip means

152
335/38

Magnetic

61
335/42

With adjusting or calibrating means

72
335/41

With magnetic flux winding directly in series with main contacts

16
335/39

With time delay (e.g., thermal)

11
335/40

Responsive to or proportional to degree of overload condition

5
335/22

Plural latch or combined latch operating means for single latch

36
335/23

With diverse-type actuating means (e.g., magnetic and thermal)

102
335/35

Plural trips or combined operating means for single trip (e.g., magnetic with thermal)

202
335/36

With common structural elements

13
335/37

With thermal element comprising magnetic flux source

29
335/26

Reclosing or resetting

48
335/27

Automatic combined with manual

29
335/28

Automatic combined with timing or delay means

6
335/29

Fluid-controlled

6
335/30

Mechanical motor-controlled (e.g., clock movement)

5
335/31

Thermally actuated

7
335/32

With counting or integrating means (e.g., repetitive for given number of reclosures)

4
335/34

With lockout

12
335/33

With means providing for operation after variable intervals or fixed intervals of different duration (e.g., first reset occurs) instantaneously, with other at longer intervals)

2
335/43

Thermal

31
335/44

Including ambient temperature compensating means

5
335/45

With regulating, adjusting or calibrating means

60
335/24

Trip-free (i.e., cannot be manually reclosed while overload exists)

22
335/25

With disabling means (for contact-actuator)

9
335/12

With shunting contacts

8
335/17

With switch condition signalling, indicating or alarm means

168
335/196

Contact composition or structure

96
335/197

Adjustable or readily detachable

18
335/198

Convertible from normally open to normally closed and vice versa

16
335/200

Pivoted or relatively movable independently of the armature

21
335/199

Printed circuit

18
335/165

Contact-actuating means unitary with latch or trip

23
335/185

Contact-actuating means

87
335/189

Mechanical linkage

58
335/191

Compound motion device (e.g., toggle)

51
335/190

Including cam, roller or eccentric means

76
335/186

Plural or combined (e.g., manual with other)

55
335/188

Snap-action

20
335/187

Unitary with armature

27
335/192

With biasing means (open or closed)

51
335/194

With pressure-maintaining or adjusting means

30
335/195

Magnetic or electrodynamic force

176
335/193

With vibration-, bounce- or chatter-prevention means

46
335/147

Electrodynamically actuated

99
335/148

Moving coil type

7
335/149

Plural coils

4
335/150

With reset or restoring means

8
335/167

Latching means

172
335/171

Including spring-biasing or energy-storage means

44
335/170

Magnetically operated

66
335/169

Plural or with auxiliary latch

24
335/168

With positive lock (against movement)

26
335/164

Manually or gravity-operated latch with electromagnetic trip

35
335/106

Multiple contact type

67
335/133

Contact structure or arrangement

93
335/134

Grid or coordinate

0
335/135

In pile or stack

40
335/107

Contacts-selectively, sequentially, alternately, or intermittently actuated

24
335/108

Automatic telephone type

2
335/118

Motor-driven

4
335/109

Plural or multidirection mechanical selector motions

0
335/111

Selector structure

1
335/112

Crossbar type

25
335/110

With motion-conversion means

0
335/115

Reciprocating selector motion (e.g., sliding)

2
335/114

Rotary selector motion

8
335/113

With holding, locking or latching means

14
335/117

With operational mode-varying means

0
335/116

With reset or selector-restoring means

10
335/121

Contact-actuation means

19
335/124

Armature structure

31
335/125

Rotary armature

25
335/126

Reciprocating or linearly sliding

190
335/122

With rotary or compound motion device (e.g., rack and pinion)

9
335/123

Pawl and ratchet

7
335/119

Plural armatures

17
335/120

With interlocking or mechanical connection

11
335/127

Simultaneously actuated

34
335/128

By pivotal or rockable armature

347
335/130

Movable contacts on circular card or comb structure

30
335/129

Movable contacts or slidable card bar or comb

91
335/131

By reciprocating armature

277
335/132

With adjustable, replaceable or interchangeable structural features

441
335/136

With plural magnet or coil means

24
335/137

Of diverse type

4
335/87

Periodic (e.g., vibrators)

6
335/91

Actuating magnet structure or material

2
335/92

Plural magnets

1
335/95

Armature

1
335/96

Adjustable

1
335/97

Contact arrangement or composition

6
335/98

Adjustable contacts

0
335/88

Plural periodic switches or with plural pairs of contacts

7
335/89

Selectively, alternately, or consecutively actuated

6
335/93

Vibratory reed or other periodic contact actuator

5
335/94

Tuned or resonant at a particular frequency

0
335/90

With vibrating or oscillating element damping, frequency adjusting or vibration control

12
335/159

Plural independently operable switches

37
335/160

Interlocking

46
335/161

With cooperative-actuating means

23
335/162

With unitary housing, support or flux path

25
335/163

With unitary or common magnetic flux source

5
335/177

Plural magnets or flux sources

99
335/183

Magnetic fields or torques acting alternately in opposite directions

18
335/178

Of diverse electrical characteristics

9
335/179

Of diverse magnetic characteristics (e.g., permanent plus electromagnet)

127
335/180

With common core or single armature

22
335/182

Magnetic fields opposing (e.g., differential)

14
335/181

Pivoted armature

31
335/184

With plural reciprocating armatures aligned or rigidly connected

8
335/78

Polarity-responsive

820
335/80

Armature structure

196
335/82

Floating (i.e., no fixed pivot)

23
335/81

Freely movable within coil or magnetic field between poles

63
335/83

Contact structure of composition

175
335/84

Magnetic structure (e.g., saturable)

39
335/85

Pole structure

67
335/79

Storage or memory type (e.g., bistable)

64
335/86

With adjusting means

55
335/4

Radio frequency switch (e.g., t/r switch)

64
335/5

With coaxial components

41
335/59

Retarded or delayed type

24
335/67

Adjustable or regulatable

2
335/66

Electrothermal delay means

2
335/60

Plural sets of contacts alternately, consecutively or selectively opened or closed

12
335/62

With hydraulic delay means

9
335/63

With magnetic or electromagnetically actuated delay means

19
335/64

With mechanical delay means

7
335/65

Motor or motor-controlled (e.g., clockwork)

2
335/61

With pneumatic delay means (e.g., dashpot, etc.)

20
335/138

Step-by-step type (e.g., closure responsive to predetermined number of control pulses

9
335/140

Ratchet and pawl-type actuator

10
335/139

With timing or indexing means (e.g., clock mechanism)

3
335/204

Through conductor type (i.e., conductor field actuates armature)

5
335/172

Tripping means

351
335/174

Magnetically operated

118
335/175

Utilizing hammer or other impacting means

46
335/176

With adjusting or regulating means

92
335/173

Plural diverse (e.g., manual plus electromagnet)

49
335/47

Utilizing conductive liquid (e.g., mercury)

51
335/55

Armature structure

9
335/56

Comprising freely movable floating slug or mass

10
335/48

Comprising three or more electrodes or circuit-completion means

4
335/57

Contact or electrode structure

15
335/58

Mercury or mercury wetted

47
335/49

With liquid-displacement means

24
335/50

Comprising plural interconnected liquid containers

3
335/51

Magnetic

21
335/52

Piston or plunger

14
335/53

Combined with timing or delay means

4
335/54

Tiltable or rotating liquid chamber

6
335/3

Utilizing magnetostrictive elements

13
335/151

Vacuum or hermetically sealed type (e.g., reed switch)

175
335/154

Armature, contact or contact-actuating means (e.g., sealed reed)

107
335/152

Plural

46
335/153

With permanent magnet structure

72
335/201

With arc-suppression or extinguishing means

232
335/203

With armature structure

52
335/141

With electrothermal-actuating means (e.g., expansible wire)

9
335/145

Bimetallic element

23
335/142

Fusible element

9
335/143

Independently operative

0
335/146

Thermomagnetic (e.g., device whose magnetic permeability changes with temperature)

23
335/144

With armature positioning or adjusting

4
335/202

With housing or support means

697
335/166

With latch- or trip-reset means

75
335/68

With motor

58
335/71

Contact actuating structure

27
335/76

Comprising energy storage means (e.g., wound spring)

26
335/73

Eccentric or cam

12
335/74

Including brake, clutch or detent

8
335/75

Magnetically actuated

12
335/72

Plural contacts

14
335/70

Frequency-responsive or synchronous

3
335/69

Reversible or oscillatable

7
335/77

With locking, latch or tripping structure

16
335/157

With operation-inhibiting means (shock resistant)

26
335/158

From open position

6
335/155

With predetermined current or voltage value-responsive actuator

13
335/156

With protective means for switch or contacts

41
335/209

Magnets and electromagnets

71
335/283

Blade sharpening or conditioning type magnets

2
335/219

Combined with diverse-type art device

146
335/210

Electron or ion beam deflecting type

428
335/212

With adjustable magnetic element (e.g., to change the air gap, or its position on the cathode ray tube)

164
335/213

With coil structure

355
335/214

With electric or magnetic-shielding means

91
335/211

With magnetic shunt

83
335/284

For magnetizing or demagnetizing

264
335/296

Magnet structure or material

494
335/299

Coil structure or material

524
335/300

With cooling means

136
335/297

Core structure

218
335/298

Movable or adjustable cores

101
335/302

Permanent magnets

404
335/303

Enclosed in flexible plastic, cloth or tape

153
335/305

Magnetic plug type (e.g., crankcase plug)

31
335/306

Plural magnets

709
335/304

With flux leakage-reducing means

126
335/301

With electric- or magnetic-shielding means

278
335/215

Magnetostrictive-type device

67
335/216

Superconductive type

865
335/217

Temperature-responsive type (e.g., temp. compensation means)

45
335/218

With time-delay means

2
335/220

With magneto-mechanical motive device (e.g., electromagnet with armature)

228
335/243

Alternating current type

8
335/250

Coil construction or mounting means

24
335/244

Flux phase displacement or varying means

11
335/246

Plural winding type

9
335/245

Shading coil

19
335/247

With chatter- or noise-preventing means

17
335/249

Special armature construction or mounting means (e.g., to assure positive seating of armature)

22
335/248

Spring or cushion-type vibration absorber

11
335/251

With plunger-type armature

61
335/252

With vibrating armature

8
335/279

Armature shape, structure or material

198
335/280

Balls, filings or granular material

22
335/270

Armature-mounting means

69
335/275

Hinge joint type armature-mounting means

25
335/276

Pivot support type armature-mounting means

82
335/272

Rotating disk or cylindrical armature

119
335/271

With armature bounce or vibration-preventing means

42
335/273

With armature-adjusting means (e.g., means to adjust the relative distance between core and armature)

53
335/274

With armature-biasing means or bias-adjustment means

137
335/282

Coil shape, structure or material

82
335/281

Core or pole shape, structure or material

247
335/221

Frequency-responsive type

5
335/265

Plural armatures actuated by single electromagnetic coil

44
335/266

Plural coils or magnets control armature movement

136
335/268

Coils or magnets being separately or selectively controllable

78
335/267

With plural armatures

38
335/227

Saturable magnetic type

19
335/236

With a shunt path for magnetic flux

60
335/237

Adjustable

22
335/253

With armature latch means (e.g., means to retain armature in open or closed position

57
335/254

With latch-control winding

17
335/238

With auxiliary armature-movement control means (e.g., manual)

33
335/278

With casing or enclosure

162
335/269

With dynamically balanced armature

8
335/228

With motion-conversion means (e.g., reciprocating to rotary motion)

44
335/229

With permanent magnet

379
335/230

Polarized electromagnet

154
335/231

Varying alternating current amplitude responsive

30
335/232

With plural armatures

19
335/233

With armature-locking means

7
335/234

With reversible magnetic flux-type movement (e.g., bistable type)

203
335/235

With vibrating reed or spring bar-type armature

14
335/255

With plunger-type armature

202
335/261

Armature structure or material

127
335/264

Sectional plunger

18
335/262

With centering or aligning or guiding means

143
335/263

With plunger rotation preventing means (e.g., means to prevent undesired rotation of the plunger during movement)

22
335/256

Plural coils controlling a single armature

93
335/259

Plural plungers

34
335/258

With armature stroke adjustment

81
335/260

With sealed enclosure (e.g., dust or moistureproof)

83
335/257

With shock-absorbing means (e.g., means to absorb the shock of armature or plunger)

79
335/222

With relatively movable coil and permanent magnet (e.g., d'arsonval type) position on the cathode ray tube)

127
335/223

With relatively movable conductors (e.g., dynamometer)

37
335/224

Induced current-type movable conductor (e.g., eddy current member)

18
335/225

Rotating disk

19
335/226

Short-circuited winding

19
335/277

With shock absorption, vibration or bounce-preventing means

81
335/239

With time delay armature-movement control means

13
335/241

Auxiliary control coil

5
335/240

Dashpot type

21
335/242

With plural armatures selectively retarded

7
335/285

Work or object holding type

343
335/289

Electromagnet type (e.g., electromagnetic chuck)

77
335/291

Lifting or attracting type (e.g., for lifting pigiron or pulling hairpins)

40
335/293

Hand-held type

6
335/292

Hermetically sealed or moisture-proofed

15
335/294

With outer casing or housing

27
335/290

With circuit control means

24
335/288

Rotary-type magnetic chuck (permanent or electromagnet type)

49
335/295

With magnetic-hold control means (e.g., means to control the hold strength)

85
335/286

With workpiece to magnet adapted or fixture (e.g., to bridge flux)

41
335/287

Angularly adjustable fixture

12
335/205

Permanent magnet-actuated switches

544
335/207

Plural magnets

350
335/206

Plural switches

175
335/208

Thermomagnetic

37
 
 
  Recently Added Patents
Method for correcting integrating cavity effect for calibration and/or characterization targets
Control method and allocation structure for flash memory device
Method of fabricating crystal unit, crystal unit fabrication mask, and crystal unit package
Imidazole derivatives used as TAFIa inhibitors
Method for the synthesis of an array of metal nanowire capable of supporting localized plasmon resonances and photonic device comprising said array
Sensor packages and method of packaging dies of differing sizes
Newly identified human rhinovirus of HRV-C and methods and kits for detecting HRV-Cs
  Randomly Featured Patents
Airbag and airbag system
Lubricating-oil pump arrangement for a motor-driven apparatus
Method for placing reinforced concrete piling without utilizing a pile driver or an auger
Method and circuit for detecting edge of fixed pattern
Self-sharpening nosepiece with skirt for attack tools
Double chambered container
Noise reducing output buffer circuit with feedback path
Hot cold water supply crossover manifold
Aechmea plant named `Maya`
Apparatus and method for removing, diluting and dispensing fluid from a flexible tube