US Patent Class 225
SEVERING BY TEARING OR BREAKING



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Current as of: June, 1999
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  DF  CLASS NOTES
1  DF  METHODS
2  DF  .~ With preliminary weakening
3  DF  .~ Longitudinally of direction of feed
4  DF  .~ Transversely of continuously fed work
5  DF  .~.~ Progressively to or from one side edge
6  DF  SEVERING BY MANUALLY FORCING AGAINST FIXED EDGE
7  DF  .~ With other type severing means
8  DF  .~ With timer-released means for preventing work feed-out
9  DF  .~ Including means to effect bias cut
10  DF  .~ With feed-out of predetermined length from work supply
11  DF  .~.~ Including means to select or adjust feed-out length
12  DF  .~.~ Including feed-out stop for manually pulled work
13  DF  .~.~.~ Stop abuts work edge or work-mounted article
14  DF  .~.~.~ With feed-out of lead-end to aid initial grasping
15  DF  .~.~ Merely to provide lead-end for manual grasping
16  DF  .~.~ Manually operated feed-out mechanism
17  DF  .~ With indicator
18  DF  .~.~ Indicates length to be severed from supply
19  DF  .~ With blade-edge guard
20  DF  .~.~ Movable
21  DF  .~ Work stripped from blade by relatively movable means
22  DF  .~.~ Including movable blade
23  DF  .~ With means to move work toward or into severing position
24  DF  .~.~ With means to strip adhering work therefrom
25  DF  .~ With work-immobilizing paster surface
26  DF  .~.~ With finger-access opening
27  DF  .~ With means to hold pad or stack of individual sheets
28  DF  .~.~ With means to separate severed end of stub from supply package
29  DF  .~.~ With changeable blade-edge contour
30  DF  .~.~.~ Slidable notcher
31  DF  .~.~ Blade slidable along plane of work surface
32  DF  .~ Zigzag-folded supply package
33  DF  .~ Separate blades usable alternatively or sequentially on same work supply
34  DF  .~ Plural supply sources
35  DF  .~.~ On turret-type support with single blade
36  DF  .~.~ With movable blade registrable selectively with each source
37  DF  .~.~ With plural blades
38  DF  .~.~.~ With individual blade for each source
39  DF  .~ With housing for work supply
40  DF  .~.~ Liquid-, gas-, or light-tight work passage
41  DF  .~.~ With inspection window or transparent panel
42  DF  .~.~ With mounting means for housing
43  DF  .~.~ Blade on pivoted closure for housing
44  DF  .~.~ Sectional telescoping housing
45  DF  .~.~.~ Including removable cap or sleeve enclosure for spooled work supply
46  DF  .~.~ Including special support for wound supply package
47  DF  .~.~.~ Bearing or trunnions to engage package core
48  DF  .~.~ Single blank container
49  DF  .~.~.~ Blade unitary with container
50  DF  .~.~.~ With closure fastener
51  DF  .~.~ With brake or tensioner
52  DF  .~.~.~ Restricted or restrictable work outlet
53  DF  .~.~ With finger-access opening to facilitate work feed-out
54  DF  .~.~ With internal guide
55  DF  .~ Blade carrier bodily and slidably supported on running length work
56  DF  .~ Blade mounted on hand-held wound package
57  DF  .~.~ With lead-end stripper for tacky adhesive work
58  DF  .~.~ By resiliently embracing outer circumference of package
59  DF  .~.~ Work supply nonrotatably wound on flanged spool
60  DF  .~.~.~ Circumferentially movable blade radially retained by beaded or grooved flanges
61  DF  .~.~.~ Blade carrier supports hollow spool for rotation
62  DF  .~.~.~ Flange edge notched to provide or coact with cutter
63  DF  .~.~.~ With clamp for lead-end of strand-type work
64  DF  .~.~.~.~ Strand clamped against flange
65  DF  .~.~ By resiliently engaging package ends or interior of core
66  DF  .~.~ Blade carrier supports package for rotation
67  DF  .~ Movable blade continually biased toward wound web supply package
68  DF  .~.~ Including temporary bias-disabling means
69  DF  .~.~ Including stripper to separate lead-end from package
70  DF  .~.~ Weight of bodily movable package contributes to blade-biasing force
71  DF  .~.~ Blade slidably guided
72  DF  .~ Blade movable to severing position by moving work
73  DF  .~.~ With simultaneous application of brake or clamp
74  DF  .~.~.~ Applied to running length work
75  DF  .~.~.~.~ Opposed movable jaws
76  DF  .~ Wound package bodily biased toward fixed blade
77  DF  .~ With fixed blade and support for wound package
78  DF  .~.~ Body- or belt-attached
79  DF  .~.~ With brake applied to supply package
80  DF  .~.~ With guide spaced from blade edge to provide lead-end therebetween
81  DF  .~ With work-abutment stop
82  DF  .~ With brake or clamp
83  DF  .~.~ Thread cutter and clamp attachment for sewing machine presser foot
84  DF  .~.~ Applied to running length work
85  DF  .~.~.~ Spaced from blade edge to provide lead-end therebetween
86  DF  .~.~.~.~ Blade manually movable to expose lead-end
87  DF  .~.~ Manually applied, spring returned
88  DF  .~ With guide for running length work
89  DF  .~ Blade manually movable to or from severing position
90  DF  .~ With means to facilitate lead-end grasping
91  DF  .~ Blades or severing devices
92  DF  .~.~ Adjustable blade-edge contour
93  DF  BREAKING OR TEARING APPARATUS
93.5  DF  .~ Including means to apply thermal shock to work
94  DF  .~ Combined with preliminary weakener or with nonbreaking cutter
95  DF  .~.~ Successively actuated sharp and dull tools
96  DF  .~.~ Preliminary weakener
96.5  DF  .~.~.~ With means to apply moment of force to weakened work
97  DF  .~ Plural breakers
98  DF  .~ Conveyer diverter for moving work
99  DF  .~.~ Plural divergent work paths
100  DF  .~ Work-parting pullers (bursters)
101  DF  .~.~ Relatively movable clamps
102  DF  .~ Axial twisters
103  DF  .~ Movable breaking tool
104  DF  .~.~ Breaking tool intermediate spaced work supports
105  DF  .~.~.~ Clamping supports
106  DF  .~ Web restrainer