Patent US3580016A successfully refreshed from Google Patents.
US3580016A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Keeper lock for a slide fastener
Assignee: Chicago Lock Co
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Filing: 1970-04-15
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Granted: 1971-05-25
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Expires: 1990-04-15
Abstract
Abstract A concentric three-part, key-operated keeper lock for a slide fastener and including an outer lock barrel having a radial anvil portion which underlies the pull tab of the slide fastener when the fastener is in its closed position, an intermediate telescopically movable rotatable handle having a radial keeper flange which is adapted to overlie the pull tab when the barrel and handle are telescoped together, and an inner tumbler-type cylinder having a locking bolt which maintains the barrel and handle telescoped. In the telescoped position of the handle and barrel, interlocking shoulders prevent rotation of the handle. In the unlocked condition of the cylinder, the handle may be moved axially to free the interlocking shoulders, after which the handle may be rotated throughout a 90* arc in order to withdraw the keeper flange from its tab-overlying position. The keeper lock is self-locking in that when it is in its unlocked condition it may be manipulated to a locked condition without the use of the proper key.
Inventors
- 👤 William J Kerr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:59
CPC Classifications
A; A44; A44B; A44B19/00; A44B19/24; A44B19/26; A44B19/30; A44B19/301; Y; Y10; Y10T; Y10T24/00; Y10T24/25; Y10T24/2511; Y10T70/00; Y10T70/50; Y10T70/5009; Y10T70/5031; Y10T70/5035; Y10T70/5049; Y10T70/5053; Y10T70/5611; Y10T70/5757; Y10T70/5765; Y10T70/577; Y10T70/5792; Y10T70/5796; Y10T70/5832; Y10T70/70; Y10T70/7441; Y10T70/7486; Y10T70/7508; Y10T70/7559; Y10T70/7655; Y10T70/7768; Y10T70/7915; Y10T70/7932; Y10T70/7944
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
309 words
In a container having an elongated access opening, a keeper lock comprising a tubular lock barrel disposed within the opening adjacent one end thereof, a slide fastener for closing said opening and including a lacing element movable along the opening between an open position wherein it is remote from the barrel and a closed position wherein it is in close proximity to the lock barrel and closes the opening, said barrel being formed with a radially projecting anvil portion which underlies the rim of the opening and receives the lacing element thereover when the latter is in its closed position, a tubular handle telescopically and rotatably received within said barrel for limited axial sliding movement therein and having a radially extending keeper flange thereon overlying the upper rim of the barrel, said handle being capable of both angular turning and axial shifting movements so that it may assume a fully telescoped locked position wherein the keeper flange closely overlies the anvil portion for confining the lacing element between it and the anvil portion, an intermediate partially telescoped and unlocked position wherein the keeper flange overlies the anvil portion and is remote therefrom, and a partially telescoped and unlocked position wherein the keeper flange is swung to one side so That it assumes an out-of-the-way position laterally removed from the anvil portion so that the lacing element is accessible for manipulation, a locking bolt carried by said handle and capable of locking engagement with the barrel when the handle is in its fully locked telescoped position to maintain the handle in such position, a lock cylinder rotatable in said handle and movable between locked and unlocked positions, and a key and tumbler mechanism for controlling the operation of said cylinder, said cylinder, when in its unlocked position, serving to withdraw said locking bolt from its locking engagement with the barrel.
Claim 2
Dependent Claim
309 words
In a container having an elongated access opening, a keeper lock comprising a tubular lock barrel disposed within the opening adjacent one end thereof, a slide fastener for closing said opening and including a lacing element movable along the opening between an open position wherein it is remote from the barrel and a closed position wherein it is in close proximity to the lock barrel and closes the opening, said barrel being formed with a radially projecting anvil portion which underlies the rim of the opening and receives the lacing element thereover when the latter is in its closed position, a tubular handle telescopically and rotatably received within said barrel for limited axial sliding movement therein and having a radially extending keeper flange thereon overlying the upper rim of the barrel, said handle being capable of both angular turning and axial shifting movements so that it may assume a fully telescoped locked position wherein the keeper flange closely overlies the anvil portion for confining the lacing element between it and the anvil portion, an intermediate partially telescoped and unlocked position wherein the keeper flange overlies the anvil portion and is remote therefrom, and a partially telescoped and unlocked position wherein the keeper flange is swung to one side so That it assumes an out-of-the-way position laterally removed from the anvil portion so that the lacing element is accessible for manipulation, a locking bolt carried by said handle and capable of locking engagement with the barrel when the handle is in its fully locked telescoped position to maintain the handle in such position, a lock cylinder rotatable in said handle and movable between locked and unlocked positions, and a key and tumbler mechanism for controlling the operation of said cylinder, said cylinder, when in its unlocked position, serving to withdraw said locking bolt from its locking engagement with the barrel.
Claim 3
Dependent Claim
77 words
In a container having an elongated access opening, the combination set forth in claim 1 and wherein said locking bolt is radially slidable in the handle between a projected position wherein it is in locking engagement with the barrel and a retracted position wherein it is withdrawn from such locking engagement, is spring biased toward its projected position, and the lock cylinder is effective in its unlocked position to maintain the locking bolt in its retracted position.
Claim 4
Dependent Claim
44 words
In a container having an elongated access opening, the combination set forth in claim 2 and wherein the wall of said barrel is provided with a bolt-receiving pocket therein into which the bolt projects when the handle is in its fully locked telescoped position.
Claim 5
Dependent Claim
62 words
In a container having an elongated access opening, the combination set forth in claim 3 and wherein the wall of the barrel is further provided with a wide-area recess in the vicinity of said pocket and presenting a curved surface area against which the bolt bears when the lock cylinder is in its locked position and the handle is in unlocked position.
Claim 6
Dependent Claim
40 words
In a container having an elongated access opening, the combination set forth in claim 3 and including, additionally, interengaging means on the handle and barrel for preventing relative rotation therebetween when the handle is in its fully telescoped locked position.
Claim 7
Dependent Claim
64 words
In a container having an elongated access opening, the combination set forth in claim 5 and wherein said interengaging means comprises cooperating spline members on the handle and barrel, said spline members remaining out of circumferential register when the handle is in an unlocked and partially telescoped position and moving into circumferential register when the handle is in its fully telescoped and locked position.
Claim 8
Dependent Claim
58 words
In a container having an elongated access opening, the combination set forth in claim 5 and wherein said interengaging means comprises a rim flange on said barrel, a rim flange on said handle overlying the rim flange on the barrel, a locking lug on said former rim flange, and a cooperating lug-receiving recess in said latter rim flange.
Claim 9
Dependent Claim
29 words
In a container having an elongated access opening, the combination set forth in claim 1 and including, additionally, spring means yieldingly biasing said handle toward its partially telescoped positions.
Claim 10
Dependent Claim
248 words
In a container having an elongated access opening, the combination set forth in claim 1 and wherein said key and tumbler mechanism comprises a keyway in said cylinder, a key having a shank portion for projection into the keyway, a tumbler groove in the wall of said handle, a series of plate tumblers radially slidable in said cylinder and normally projecting into said tumbler groove and adapted when the key is projected into said keyway to be withdrawn from the groove to permit turning of the cylinder within the handle, said key being formed with a depression in the shank portion thereof, the wall of said handle being provided with a clearance slot therein, a key-retaining plunger slidable radially in the cylinder, the outer end of said plunger registering with said clearance slot when the cylinder is in its locked position, and means yieldingly biasing said plunger outwardly of the cylinder to cause said outer end of the plunger to enter the clearance slot when the cylinder is in its locked position, the effective length of saiD plunger being such that when the outer end of the latter is withdrawn from said clearance slot the inner end thereof projects into said depression in the shank portion of the key to prevent removal of the key from said keyway, and when said outer end projects into the clearance slot the inner end of the plunger is withdrawn from said depression to permit removal of the key from said keyway.
Claim 11
Dependent Claim
60 words
In a container having an elongated access opening, the combination set forth in claim 4 and wherein the effective circumferential extent of said wide-area recess is on the order of 90* in order thereby to limit the maximum angular displacement of the keeper flange on the handle from its overlying position with respect to said anvil portion to approximately 90*.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-24 | 1974-11-23 | 1975-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-24 | 1978-11-23 | 1979-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-24 | 1982-11-23 | 1983-05-25 | $7700.00 | Window Closed / Lapsed |