US3949880A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shelf extender
Assignee: Henschel Steinau Inc
•
Filing: 1975-02-20
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Granted: 1976-04-13
•
Expires: 1995-02-20
Abstract
Abstract A shelf extender for presenting a product to the purchaser forward of a shelf having a container for holding and displaying the product, the container, in one embodiment, having a rear wall with receiving means to cooperate with a plate of a clamp, the clamp having a pair of spaced arms cantilevered therefrom, the first arm having a fixed clamping surface at the end thereof, the second arm having a cavity having two plates adjacent the free end thereof, a standard size nut in the cavity, an opening in each plate of the cavity, the openings being in general alignment with the nut so that a bolt may pass therethrough, a standard size bolt of another size such that the outside diameter of the bolt is no larger than the inside diameter of the nut, the plates of the cavity being shaped so that the nut is in a first position against one plate and in a second position against the other plate, in the first position of the nut, the nut is normal to the bolt and in the second position of the nut, the nut is canted with respect to the bolt so that at least a portion of the thread of the bolt engages at least a portion of the thread of the nut in threaded engagement whereby in the first position of the nut, the bolt is movable for coarse adjustment and in the second position of the nut, the bolt is movable for fine adjustment, a clamping surface at the end of the bolt to permit the clamp to rigidly engage the shelf and thereby hold the shelf extender firmly in place. In another embodiment, the clamp is a part of the end piece of the shelf extender and there are two such end clamps utilized to support the shelf extender. A quick release mechanism for the clamp may be provided to facilitate application of the shelf extender to a shelf and its removal therefrom.
Inventors
- 👤 Vincent Fortunato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:58
CPC Classifications
F; F16; F16B; F16B2/00; F16B2/02; F16B2/06; F16B2/065; A; A47; A47F; A47F5/00; A47F5/0043; A47F5/0068; Y; Y10; Y10S; Y10S411/00; Y10S411/924; Y10S411/929; Y10S411/936
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
386 words
A shelf extender for holding a product so as to display the same to the purchaser forward of a shelf having two surfaces comprising: a wall member having a front surface and a rear surface; at least one receiving means cooperative with the rear surface; means for supporting the product affixed to the wall member; a clamp comprising: a plate shaped to fit with the receiving means; an arm cantilevered from the plate having a clamping pad at the free end thereof so as to engage one surface of the shelf; a post cantilevered from the plate spaced from the cantilevered arm; the post having a cavity therein, an upper plate and a lower plate, each of said plates having an opening therein located to permit a bolt to pass therethrough; the lower plate being canted with respect to the upper plate; a conventional nut received within the cavity, the nut being of standard size and configuration and including an opening with an unmodified conventional internal helical thread of given standard size and having a given inside diameter; the opening in the nut being in general alignment with the openings in the cavity's plates; a conventional bolt of standard size and configuration including an unmodified conventional external helical thread of a standard size having an outside diameter no larger than the inside diameter of the nut opening; the upper and lower plates of the cavity being placed so that the nut is movable between a first position against the upper plate and a second position against the lower plate; in the first position, the nut is normal to the bolt and the bolt passes freely through the nut and in the second position, the nut is canted with respect to the bolt and at least a portion of the thread of the nut engages at least a portion of the thread of the bolt in threaded engagement, whereby the bolt may be moved to obtain a coarse adjustment in the first position of the nut and a fine adjustment in the second position of tne nut; a second clamping pad on the end of the bolt to engage the other surface of the shelf so that the means for supporting the product is projected forward of the shelf and is held in place with respect thereto.
Claim 2
Dependent Claim
386 words
A shelf extender for holding a product so as to display the same to the purchaser forward of a shelf having two surfaces comprising: a wall member having a front surface and a rear surface; at least one receiving means cooperative with the rear surface; means for supporting the product affixed to the wall member; a clamp comprising: a plate shaped to fit with the receiving means; an arm cantilevered from the plate having a clamping pad at the free end thereof so as to engage one surface of the shelf; a post cantilevered from the plate spaced from the cantilevered arm; the post having a cavity therein, an upper plate and a lower plate, each of said plates having an opening therein located to permit a bolt to pass therethrough; the lower plate being canted with respect to the upper plate; a conventional nut received within the cavity, the nut being of standard size and configuration and including an opening with an unmodified conventional internal helical thread of given standard size and having a given inside diameter; the opening in the nut being in general alignment with the openings in the cavity's plates; a conventional bolt of standard size and configuration including an unmodified conventional external helical thread of a standard size having an outside diameter no larger than the inside diameter of the nut opening; the upper and lower plates of the cavity being placed so that the nut is movable between a first position against the upper plate and a second position against the lower plate; in the first position, the nut is normal to the bolt and the bolt passes freely through the nut and in the second position, the nut is canted with respect to the bolt and at least a portion of the thread of the nut engages at least a portion of the thread of the bolt in threaded engagement, whereby the bolt may be moved to obtain a coarse adjustment in the first position of the nut and a fine adjustment in the second position of tne nut; a second clamping pad on the end of the bolt to engage the other surface of the shelf so that the means for supporting the product is projected forward of the shelf and is held in place with respect thereto.
Claim 3
Dependent Claim
39 words
The invention of claim 1 wherein: the receiving means comprises a lip projecting from the rear surface so as to form a groove between the lip and the rear surface; and the plate is shaped to engage the groove.
Claim 4
Dependent Claim
22 words
The invention of claim 2 wherein: there is a plurality of such clamps spaced along the rear surface of the wall member.
Claim 5
Dependent Claim
24 words
The invention of claim 3 wherein: the means for supporting the product comprises a floor affixed to the wall member and extending outwardly therefrom.
Claim 6
Dependent Claim
24 words
The invention of claim 2 wherein: the means for supporting the product comprises a floor affixed to the wall member and extending outwardly therefrom.
Claim 7
Dependent Claim
22 words
The invention of claim 1 wherein: there is a plurality of such clamps spaced along the rear surface of the wall member.
Claim 8
Dependent Claim
24 words
The invention of claim 6 wherein: the means for supporting the product comprises a floor affixed to the wall member and extending outwardly therefrom.
Claim 9
Dependent Claim
24 words
The invention of claim 1 wherein: the means for supporting the product comprises a floor affixed to the wall member and extending outwardly therefrom.
Claim 10
Dependent Claim
20 words
The invention of claim 1 wherein: the receiving means comprises a pocket in the rear surface of the wall member.
Claim 11
Dependent Claim
24 words
The invention of claim 9 wherein: the means for supporting the product comprises a floor affixed to the wall member and extending outwardly therefrom.
Claim 12
Dependent Claim
60 words
The invention of claim 1 including: a rigid tab having an opening therein; the tab being placed between the nut and the lower plate such that the bolt will pass through its opening so that upon raising the tab, the nut is raised from the second position to the first position to thereby permit the clamp to be quickly released.
Claim 13
Dependent Claim
310 words
A clamp for attachment to a workpiece comprising: a C-shaped frame having a spine and two spaced apart arms cantilevered from the spine; one of said arms having a first clamping surface; the other of said arms having a cavity adjacent the free end thereof, and an upper plate and a lower plate, each of the plates thereof having an opening therein located to permit a bolt to pass therethrough; the lower plate being canted with respect to the upper plate; a conventional nut received within the cavity, the nut being of standard size and configuration and including an opening with an unmodified conventional internal helical thread of given standard size and having a given inside diameter; the opening in the nut being in general alignment with the openings in the plates; a conventional bolt of standard size and configuration including an unmodified conventional external helical thread of a standard size having an outside diameter no larger than the inside diameter of the nut opening; the plates of the cavity being shaped so that the nut is movable between a first position against the upper plate and a second position against the lower plate; in the first position, the nut is normal to the bolt and the bolt passes freely through the nut and in the second position, the nut is canted with respect to the bolt and at least a portion of the thread of the bolt engages at least a portion of the thread of the nut in threaded engagement, whereby the bolt may be moved to obtain a coarse adjustment in the first position of the nut and a fine adjustment in the second position of the nut; a second clamping surface on the end of the bolt to thereby permit the workpiece to be securely held between the first clamping surface and the second clamping surface.
Claim 14
Dependent Claim
310 words
A clamp for attachment to a workpiece comprising: a C-shaped frame having a spine and two spaced apart arms cantilevered from the spine; one of said arms having a first clamping surface; the other of said arms having a cavity adjacent the free end thereof, and an upper plate and a lower plate, each of the plates thereof having an opening therein located to permit a bolt to pass therethrough; the lower plate being canted with respect to the upper plate; a conventional nut received within the cavity, the nut being of standard size and configuration and including an opening with an unmodified conventional internal helical thread of given standard size and having a given inside diameter; the opening in the nut being in general alignment with the openings in the plates; a conventional bolt of standard size and configuration including an unmodified conventional external helical thread of a standard size having an outside diameter no larger than the inside diameter of the nut opening; the plates of the cavity being shaped so that the nut is movable between a first position against the upper plate and a second position against the lower plate; in the first position, the nut is normal to the bolt and the bolt passes freely through the nut and in the second position, the nut is canted with respect to the bolt and at least a portion of the thread of the bolt engages at least a portion of the thread of the nut in threaded engagement, whereby the bolt may be moved to obtain a coarse adjustment in the first position of the nut and a fine adjustment in the second position of the nut; a second clamping surface on the end of the bolt to thereby permit the workpiece to be securely held between the first clamping surface and the second clamping surface.
Claim 15
Dependent Claim
60 words
The invention of claim 12 including: a rigid tab having an opening therein; the tab being placed between the nut and the lower plate such that the bolt will pass through its opening so that upon raising the tab, the nut is raised from the second position to the first position to thereby permit the clamp to be quickly released.
Claim 16
Dependent Claim
22 words
The invention of claim 12 wherein: the spine is a plate formed to cooperatively engage receiving means associated with a wall member.
Claim 17
Dependent Claim
39 words
The invention of claim 14 wherein: the receiving means comprises a lip projecting from the rear surface so as to form a groove between the lip and the rear surface; and the plate is shaped to engage the groove.
Claim 18
Dependent Claim
16 words
The invention of claim 14 wherein: the receiving means comprises a pocket in the wall member.
Claim 19
Dependent Claim
75 words
The invention of claim 12 including: means for supporting a product; a pair of elements engageable with the means for supporting the product and wherein: the workpiece is a shelf; and there are a pair of clamps whose spines are integral with the end elements to thereby permit the combination to be assembled and clamped to the shelf to project the product forward of the shelf and to hold it in place with respect thereto.
Claim 20
Dependent Claim
286 words
In a clamp for engaging a workpiece having a spine and an arm cantilevered from the spine the improvement comprising: a cavity adjacent the free end of the arm to receive a conventional nut and having an upper plate and a lower plate, each of the plates having an opening therein located to permit a bolt to pass therethrough; a conventional nut received within the cavity, the nut being of standard size and configuration and including an opening with an unmodified conventional internal helical thread of given standard size and having a given inside diameter; the opening in the nut being in general alignment with the openings in the plates; a conventional bolt of standard size and configuration including an unmodified conventional external helical thread of a standard size having an outside diameter no larger than the inside diameter of the nut opening; the plates of the cavity being shaped such that the lower plate is canted with respect to the upper plate and so that the nut is movable between a first position against the upper plate and a second position against the lower plate; in the first position, the nut is normal to the bolt and the bolt passes freely through the nut and in the second position, the nut is canted with respect to the bolt and at least a portion of the thread of the bolt engages at least a portion of the thread of the nut in threaded engagement, whereby the bolt may be moved to obtain a coarse adjustment in the first position of the nut and a fine adjustment in the second position of the nut; a clamping surface on the end of the bolt for engaging the workpiece.
Claim 21
Dependent Claim
286 words
In a clamp for engaging a workpiece having a spine and an arm cantilevered from the spine the improvement comprising: a cavity adjacent the free end of the arm to receive a conventional nut and having an upper plate and a lower plate, each of the plates having an opening therein located to permit a bolt to pass therethrough; a conventional nut received within the cavity, the nut being of standard size and configuration and including an opening with an unmodified conventional internal helical thread of given standard size and having a given inside diameter; the opening in the nut being in general alignment with the openings in the plates; a conventional bolt of standard size and configuration including an unmodified conventional external helical thread of a standard size having an outside diameter no larger than the inside diameter of the nut opening; the plates of the cavity being shaped such that the lower plate is canted with respect to the upper plate and so that the nut is movable between a first position against the upper plate and a second position against the lower plate; in the first position, the nut is normal to the bolt and the bolt passes freely through the nut and in the second position, the nut is canted with respect to the bolt and at least a portion of the thread of the bolt engages at least a portion of the thread of the nut in threaded engagement, whereby the bolt may be moved to obtain a coarse adjustment in the first position of the nut and a fine adjustment in the second position of the nut; a clamping surface on the end of the bolt for engaging the workpiece.
Claim 22
Dependent Claim
55 words
The invention of claim 18 including: a slot running from one side of each end of the cavity to the opening therein; the slots being placed to permit access to the openings in the ends from opposed sides of the cavity to thereby permit an assembled nut and bolt to be inserted in the clamp.
Claim 23
Dependent Claim
60 words
The invention of claim 18 including: a rigid tab having an opening therein; the tab being placed between the nut and the lower plate such that the bolt will pass through its opening so that upon raising the tab, the nut is raised from the second position to the first position to thereby permit the clamp to be quickly released.
Claim 24
Dependent Claim
371 words
A shelf extender for holding a product so as to display the same to a purchaser forward of a shelf having two surfaces comprising: product receiving means having a floor and a back wall; a pair of end members having receiving means to receive the edges of the product receiving means; a clamp integral with each of the end members; said clamp comprising: a C-shaped frame having a spine and two spaced apart arms cantilevered from the spine; one of said arms having a first clamping surface; the other of said arms having a cavity adjacent the free end thereof, and an upper plate and a lower plate, each of the plates thereof having an opening therein located to permit a bolt to pass therethrough; the lower plate being canted with respect to the upper plate; a conventional nut received within the cavity, the nut being of standard size and configuration and including an opening with an unmodified conventional internal helical thread of given standard size and having a given inside diameter; the opening in the nut being in general alignment with the openings in the plates; a conventional bolt of standard size and configuration including an unmodified conventional external helical thread of a standard size having an outside diameter no larger than the inside diameter of the nut opening; the plates of the cavity being shaped so that the nut is movable between a first position against the upper plate and a second position wherein it is canted with respect to the first position; in the first position, the nut is normal to the bolt and the bolt passes freely through the nut and in the second position, the nut is canted with respect to the bolt and at least a portion of the thread of the bolt engages at least a portion of the thread of the nut in threaded engagement, whereby the bolt may be moved to obtain a coarse adjustment in the first position of the nut and a fine adjustment in the second position of the nut; a second clamping surface on the end of the bolt to thereby permit the workpiece to be securely held between the first clamping surface and the second clamping surface.
Claim 25
Dependent Claim
371 words
A shelf extender for holding a product so as to display the same to a purchaser forward of a shelf having two surfaces comprising: product receiving means having a floor and a back wall; a pair of end members having receiving means to receive the edges of the product receiving means; a clamp integral with each of the end members; said clamp comprising: a C-shaped frame having a spine and two spaced apart arms cantilevered from the spine; one of said arms having a first clamping surface; the other of said arms having a cavity adjacent the free end thereof, and an upper plate and a lower plate, each of the plates thereof having an opening therein located to permit a bolt to pass therethrough; the lower plate being canted with respect to the upper plate; a conventional nut received within the cavity, the nut being of standard size and configuration and including an opening with an unmodified conventional internal helical thread of given standard size and having a given inside diameter; the opening in the nut being in general alignment with the openings in the plates; a conventional bolt of standard size and configuration including an unmodified conventional external helical thread of a standard size having an outside diameter no larger than the inside diameter of the nut opening; the plates of the cavity being shaped so that the nut is movable between a first position against the upper plate and a second position wherein it is canted with respect to the first position; in the first position, the nut is normal to the bolt and the bolt passes freely through the nut and in the second position, the nut is canted with respect to the bolt and at least a portion of the thread of the bolt engages at least a portion of the thread of the nut in threaded engagement, whereby the bolt may be moved to obtain a coarse adjustment in the first position of the nut and a fine adjustment in the second position of the nut; a second clamping surface on the end of the bolt to thereby permit the workpiece to be securely held between the first clamping surface and the second clamping surface.
Claim 26
Dependent Claim
45 words
The invention of claim 21 wherein: the end members have a body portion with a raised perimeter; and the receiving means comprises at least one rib spaced from the raised perimeter to form a groove therebetween to receive an edge of the product receiving means.
Claim 27
Dependent Claim
60 words
The invention of claim 22 including: a rigid tab having an opening therein; the tab being placed between the nut and the lower plate such that the bolt will pass through its opening so that upon raising the tab, the nut is raised from the second position to the first position to thereby permit the clamp to be quickly released.
Claim 28
Dependent Claim
60 words
The invention of claim 21 including: a rigid tab having an opening therein; the tab being placed between the nut and the lower plate such that the bolt will pass through its opening so that upon raising the tab, the nut is raised from the second position to the first position to thereby permit the clamp to be quickly released.
References Cited (Backward Citations)
US809882A
Cited
US900796A
Cited
US1125911A
Cited
US1804007A
Cited
US2326261A
Cited
US2312955A
Cited
GB569359A
Cited
US2469600A
Cited
US2947333A
Cited
US3147003A
Cited
US3219336A
Cited
US3289615A
Cited
US3647078A
Cited
US3744645A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-04-13 | 1979-10-13 | 1980-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-04-13 | 1983-10-13 | 1984-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-04-13 | 1987-10-13 | 1988-04-13 | $7700.00 | Window Closed / Lapsed |